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Quantum Cascade Lasers (QCLs), 4.05 - 11 µm


  • Center Wavelengths: 4.05 - 11.00 µm (2469 - 909 cm-1)
  • Optical Output Powers up to 1200 mW
  • Broadband Fabry-Perot Lasers and Single-Wavelength Distributed Feedback Lasers

QF4600T1

Fabry-Perot Laser, Ø9 mm TO Can

QF5300CM1

Fabry-Perot Laser, Two-Tab C-Mount

QD7500DM1

Distributed Feedback Laser, D-Mount

QD8500HHLH

Distributed Feedback Laser, Horizontal HHL Package

QF4050D3

Fabry-Perot Laser, D-Mount

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Laser Diode Selection Guidea
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UV (375 nm)
Visible (404 nm - 690 nm)
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MIR (4.05 µm - 11.00 µm)
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  • Our complete selection of laser diodes is available on the LD Selection Guide tab above.

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Clicking the words "Choose Item" opens a drop-down list containing all of the in-stock lasers around the desired center wavelength. The red icon next to the serial number then allows you to download L-I-V and spectral measurements for that serial-numbered device.
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Features

  • Quantum Cascade Lasers (QCLs)
  • CW Output up to 1200 mW
  • Center Wavelengths Between 4.05 µm and 11.00 μm (Wavenumbers Between
    2469 cm-1 and 909 cm-1)
  • Broadband Fabry-Perot (FP) and Single-Frequency Distributed Feedback (DFB) Options
  • C-Mount, D-Mount, and HHL Lasers are Electrically Isolated from Their Mounts
  • Custom Wavelengths, Custom Packages, and OEM Quantities Also Available (Contact Tech Support for Details)
  • Gain Chips with AR-Coated Front Facets Also Available as a Custom Order

Thorlabs' Quantum Cascade Lasers (QCLs), which are composed of multiple quantum well heterostructures and utilize intersubband transitions to access the mid-infrared spectral region, are offered in four packages: a two-tab C-mount, a Ø9 mm TO can, a D-mount, and a high heat load (HHL) package with horizontal emission. The two-tab C-mount and Ø9 mm TO can packages can be easily interfaced to our SM1 lens tubes, 30 mm cage systems, and 60 mm cage systems using the LDMC20 C-Mount Laser Mount or the LDM90 Laser Mount, respectively. The D-mount and HHL packages are intended for OEM applications and systems integration. Additional information is available in the Packages tab.

Fabry-Perot Lasers
Fabry-Perot quantum cascade lasers exhibit broadband emission in a range spanning roughly 50 cm-1. The laser's specified output power is the sum over the full spectral bandwidth. Since these QCLs have broadband emission, they are well suited for medical imaging, illumination, and microscopy applications. The output spectrum and L-I-V curve of each serial-numbered device, measured by an automated test station, are available below and are also included on a data sheet that ships with the device.

Each Fabry-Perot quantum cascade laser has an HR-coated back facet. As a custom option, these QCLs can be ordered with an AR coating on the front facet; however, the custom item will operate as a gain chip and not as a CW laser. Although these lasers are specified for CW output, they are compatible with pulsed applications. To order a Fabry-Perot QCL with a tested and specified pulsed optical power or other custom features, please contact Tech Support.

Distributed Feedback Lasers
Distributed feedback (DFB) quantum cascade lasers emit at a well-defined center wavelength and provide single spatial mode operation. By tuning the input current and operating temperature, the output frequency can be tuned over a narrow range between 1 cm-1 and 5 cm-1. They are ideal for chemical sensing (see the Spectroscopy tab), optical communications, and other applications. The output spectrum, power, and L-I-V curve of each serial-numbered device, as measured by an automated test station, are available below and are also included on a data sheet with the laser. These quantum cascade lasers are specified for CW output. While pulsed output is possible, this application prohibits current tuning, and performance is not guaranteed. For two-tab C-Mount and D-Mount lasers, some optical power is emitted through the rear facet; this output is not usable in applications.

FP and DFB Comparison
Click to Enlarge

Fabry-Perot and Distributed Feedback Laser Comparison
Fabry-Perot (FP) Lasers have broadband emission, while Distributed Feedback (DFB) Lasers emit at a well defined wavelength.

Mounts, Drivers, and Temperature Control
For two-tab C-mount quantum cascade lasers, we generally recommend the LDMC20 C-Mount Laser Mount and ITC4002QCL or ITC4005QCL Dual Current / Temperature Controller. This device combination includes all the necessary components to mount, drive, and thermally regulate a two-tab C-mount laser. Other compatible current and temperature controllers are listed in the Drivers tab. The LDM90 Laser Mount along with the ITC4002QCL or ITC4005QCL can be used with the TO can laser, but the 8W cooling capacity of the LDM90 will limit the driving current of the laser. HHL lasers are compatible with any HHL mount, although cables for HHL packages are typically not rated for the 4.5 A maximum current of the internal thermoelectric cooler. D-mount lasers require custom mounts.

If designing your own mounting solution, note that due to these lasers' heat loads, the laser must be mounted in a thermally conductive housing to prevent heat buildup. Heat loads for QCLs can be up to 38 W, depending upon the wavelength and package. See the Handling tab for additional information.

The typical operating voltages of our QCLs are 2.5 - 3.1 V and 7 - 16 V, respectively. These quantum cascade lasers do not have built-in monitor photodiodes and must be operated in constant current mode.

High-Power QCLs
Click to Enlarge

Maximum Output Power of Custom Fabry-Perot QCLs
Contact Thorlabs

OEM & Custom QCLs

Thorlabs manufactures custom and OEM quantum cascade lasers in high volumes. We maintain a broad chip inventory at our Jessup, Maryland, laser manufacturing facility and we are accustomed to fulfilling specialized requests.

More details are available on the Custom & OEM Lasers tab. To inquire about pricing and availability, please contact us. A semiconductor specialist will contact you within 24 hours or the next business day.

Current and Temperature Controllers

Use the tables below to select a compatible controller for our MIR lasers. The first table lists the controllers with which a particular MIR laser is compatible, and the second table contains selected information on each controller. Complete information on each controller is available in its full web presentation. We particularly recommend our ITC4002QCL and ITC4005QCL controllers, which have high compliance voltages of 17 V and 20 V, respectively. Together, these drivers support the current and voltage requirements of our entire line of Mid-IR Lasers.

The typical operating voltages of our QCLs are 7 - 16 V. To get L-I-V and spectral measurements of a specific, serial-numbered device, click "Choose Item" next to the part number below, then click on the Docs Icon next to the serial number of the device.

Table Key
Current Controllers
Dual Current / Temperature Controllers

Laser Mount Compatibility
Thorlabs' LDMC20 C-Mount Laser Mount ships with current and TEC cables for the LDC4005, ITC4001, ITC4002QCL, ITC4005, and ITC4005QCL controllers. To use the LDMC20 with our other controllers, custom cables will be required. For our Ø9 mm TO can QCL we have the LDM90 Laser Mount which is fully compatible with all of the controllers listed in the tables below; however, the mount itself has a limited heat load of 8 W, meaning the QCL cannot be driven at full power in this mount. If designing your own mounting solution, note that due to these lasers' heat loads, we recommend that they be secured in a thermally conductive housing to prevent heat buildup. Heat loads for QCLs can be up to 38 W.

Laser and Controller Compatibility

Laser Item # Wavelength Current Controllers Dual Current / Temperature Controllers
    Large Benchtop Large Benchtop
QD4500CM1 4.00 - 5.00 µm
(2500- 2165 cm-1)
- ITC4002QCLITC4005QCL
QF4050D2 4.05 µm
(2469 cm-1)
- ITC4002QCL, ITC4005QCL
QF4050D3 -
QF4400CM1 4.40 µm
(2273 cm-1)
LDC4005 ITC4002QCLITC4005ITC4005QCL
QD4580CM1 4.54 - 4.62 µm
(2203 - 2165 cm-1)
LDC4005 ITC4002QCLITC4005ITC4005QCL
QF4550CM1 4.55 µm
(2198 cm-1)
LDC4005 ITC4002QCLITC4005ITC4005QCL
QF4600T1 4.60 µm
(2174 cm-1)
- ITC4002QCLITC4005QCL
QF4800CM1 4.80 µm
(2083 cm-1)
- ITC4002QCLITC4005QCL
QD5500CM1 5.00 - 6.00 µm
(2000 - 1667 cm-1)
- ITC4002QCLITC4005QCL
QD5250CM1 5.20 - 5.30 µm
(1923 - 1887 cm-1)
LDC4005 ITC4002QCLITC4005ITC4005QCL
QF5300CM1 5.30 µm
(1887 cm-1)
LDC4005 ITC4002QCLITC4005ITC4005QCL
QD6500CM1 6.00 - 7.00 µm
(1667 - 1429 cm-1)
- ITC4002QCLITC4005QCL
QD7500CM1 7.00 - 8.00 µm
(1429 - 1250 cm-1)
- ITC4002QCLITC4005QCL
QF7200CM1 7.20 µm
(1389 cm-1)
LDC4005 ITC4002QCLITC4005ITC4005QCL
QD7500DM1 7.00 - 8.00 µm
(1429 - 1250 cm-1)
- ITC4002QCL, ITC4005QCL
QF7700CM1 7.70 µm
(1299 cm-1)
LDC4005 ITC4002QCLITC4005ITC4005QCL
QD7950CM1 7.90 - 8.00 µm
(1266 - 1250 cm-1)
LDC4005 ITC4001ITC4002QCLITC4005ITC4005QCL
QD8050CM1 8.00 - 8.10 µm
(1250 - 1235 cm-1)
LDC4005 ITC4001, ITC4002QCLITC4005ITC4005QCL
QD8500CM1 8.00 - 9.00 µm
(1250 - 1111 cm-1)
- ITC4002QCLITC4005QCL
QD8500HHLHa 8.00 - 9.00 µm
(1250 - 1111 cm-1)
- ITC4002QCL, ITC4005QCL
QF8350CM1 8.35 µm
(1198 cm-1)
LDC4005 ITC4002QCL, ITC4005ITC4005QCL
QD8650CM1 8.60 - 8.70 µm
(1163 - 1149 cm-1)
LDC4005 ITC4001, ITC4002QCLITC4005ITC4005QCL
QD9500CM1 9.00 - 10.00 µm
(1111 - 1000 cm-1)
- ITC4002QCLITC4005QCL
QD9500HHLHa 9.00 - 10.00 µm
(1111 - 1000 cm-1)
- ITC4002QCL, ITC4005QCL
QF9550CM1 9.55 µm
(1047 cm-1)
LDC4005 ITC4002QCLITC4005ITC4005QCL
QD10500CM1 10.00 - 11.00 µm
(1000 - 909 cm-1)
- ITC4002QCLITC4005QCL
  • Please note that Thorlabs does not offer cables that connect high heat load lasers to our controllers, and that third-party cables for these packages are typically not rated for the 4.5 A maximum current of the internal thermoelectric cooler. Custom cables will be required.

 

Controller Selection Guide

Controller Item # Controller Type Controller Package Current Range Current Resolution Voltage Cables for
LDMC20 Laser Mount
LDC210C Current Small Benchtop
(146 x 66 x 290 mm)
0 to ±1 A 100 µA >10 V Not Included with LDMC20b
LDC240C 0 to ±4 A 100 µA >5 V Not Included with LDMC20b
LDC4005 Large Benchtop
(263 x 122 x 307 mm)
0 to 5 A 1 mA (Front Panel)
80 µA (Remote Control)
12 V Included with LDMC20
LDC8010 Rack Mounted 0 to ±1 A 15 µA >5 V Not Included with LDMC20b
LDC8020 0 to ±2 A 30 µA >5 V Not Included with LDMC20b
LDC8040 0 to ±4 A 70 µA >5 V Not Included with LDMC20b
ITC4001 Current / Temperature Large Benchtop
(263 x 122 x 307 mm)
0 to 1 A 100 µA (Front Panel)
16 µA (Remote Control)
11 V Included with LDMC20
ITC4002QCL 0 to 2 A 100 µA (Front Panel)
32 µA (Remote Control)
17 V Included with LDMC20
ITC4005 0 to 5 A 1 mA (Front Panel)
80 µA (Remote Control)
12 V Included with LDMC20
ITC4005QCL 20 V Included with LDMC20
  • Thorlabs does not currently offer cables that connect the LDMC20 mount to this controller. Custom cables will be required.

Packages

Thorlabs stocks quantum cascade lasers (QCLs) in three packages: a two-tab C-mount, which is recommended for academic and industrial research, and a D-mount and high heat load package with horizontal emission, which are intended for OEM applications and system integration. Please see the Handling tab for more tips and information for handling these laser packages. Other packages may be available as custom orders (see the Custom & OEM Lasers tab).

Two-Tab C-Mount
Click to Enlarge

Two-Tab C-Mount Package

Two-Tab C-Mount
The two-tab C-mount measures 6.4 mm x 4.3 mm x 7.9 mm (not including the tabs), provides high thermal conductivity, and can be secured using a 2-56 or M2 screw with the counterbored Ø2.4 mm (Ø0.09") through hole. The drive voltage and current are supplied through the tabs. As measured from the bottom of the C-mount, the emission height of the QCLs is either 7.15 mm or 7.39 mm depending on the chosen laser; the outer dimensions of the C-mounts are the same. All two-tab C-mount lasers sold on this page are electrically isolated from their C-mounts.

 

D-Mount
Click for Details

Comparison of D-Mount Packages

D-Mount
Designed for OEM customers, our D-mount packages measure 12.0 mm long and have a 2.6 mm emission height. They provide high thermal conductivity and are offered in
4.5 mm, 6.0 mm, or 7.5 mm sizes (measured by cavity length). Note that our DFB D-mount is 2.8 mm thick, whereas our FP D-mounts are 2.1 mm thick. Additionally, our D-mount packages are machined with two counterbored slots for mounting. The drive voltage and current are supplied via two large gold contact pads, which are suitable for wire bonding or probe connections. The lasers are electrically isolated from their D-mounts. A built-in thermistor provides real-time temperature measurements for control electronics.

 

Horizontal HHL
Click to Enlarge

Horizontal HHL Package

High Heat Load Package with Horizontal Emission
This package offers an industry-standard pinout and package dimensions. Each package incorporates a built-in thermistor and thermoelectric cooler (TEC) for active temperature management and prolonged laser lifetime, and also includes an internal aspheric lens that collimates the laser's output. As measured from the bottom of the package, the emission height is 12.7 ± 0.13 mm. The emitted light is coupled out of the package through a wedged zinc sulfide (ZnS) window, which causes the output beam to deviate downward from the normal by -2.0° ± 1.5°. Each laser is electrically isolated from its mount. More information is available at their full web presentation.

 

Two-Tab C-Mount
Click to Enlarge

Ø9 mm TO Can Package

Ø9 mm TO Can
The Ø9 mm TO can provides high thermal conductivity, and can be easily integrated into a standard mount for high-power TO can laser diodes. This package incorporates an additional copper disk for added heat dissipation. The additional material makes this TO can thicker than standard; however, the laser is still compatible with all Ø9 mm laser mounts. An AR-coated ZnSe window protects the QCL from dust and debris. The drive voltage and current are supplied through the pins. The emission of the QCL is centered in the TO can.

Do

  • Provide External Temperature Regulation
    (e.g., Heat Sinks, Fans, and/or Water Cooling)
  • Use a Constant Current Source Specifically Designed for Lasers
  • Observe Static Avoidance Practices
  • Be Careful When Making Electrical Connections

Do Not

  • Use Thermal Grease with C-Mount or
    D-Mount Lasers
  • Expose the Laser to Smoke, Dust, Oils, Adhesive Films, or Flux Fumes
  • Blow on the Laser
  • Drop the Laser Package
  • Use Solder with TO Can or D-Mount Lasers

Handling Two-Tab C-Mount, TO Can, D-Mount, and High Heat Load Lasers

Proper precautions must be taken when handling and using two-tab C-mount, TO Can, D-mount, or high heat load (HHL) lasers. Otherwise, permanent damage to the device will occur. Members of our Technical Support staff are available to discuss possible operation issues.

Avoid Static
Since these lasers are sensitive to electrostatic shock, they should always be handled using standard static avoidance practices.

Avoid Dust and Other Particulates
Unlike TO can and butterfly packages, the laser chip of a C-mount or D-mount laser is exposed to air; hence, there is no protection for the delicate laser chip. Contamination of the laser facets must be avoided. Do not blow on the laser or expose it to smoke, dust, oils, or adhesive films. The laser facet is particularly sensitive to dust accumulation. During standard operation, dust can burn onto this facet, which will lead to premature degradation of the laser. If operating a C-mount or D-mount laser for long periods of time outside a cleanroom, it should be sealed in a container to prevent dust accumulation.

HHL lasers and TO cans are sealed (although the seal is not hermetic), so the laser chip will not be exposed to air. However, similar dust avoidance precautions should be followed for the window on these packages, since the windows are exposed to the atmosphere.

Use a Current Source Specifically Designed for Lasers
These lasers should always be used with a high-quality constant current driver specifically designed for use with lasers, such as any current controller listed in the Drivers tab. Lab-grade power supplies will not provide the low current noise required for stable operation, nor will they prevent current spikes that result in immediate and permanent damage.

Thermally Regulate the Laser
Temperature regulation is required to operate the laser for any amount of time. The temperature regulation apparatus should be rated to dissipate the maximum heat load that can be drawn by the laser. For our two-tab C-mount or TO can quantum cascade lasers, this value can be up to 18 W. The LDMC20 C-Mount Laser Mount, which is compatible with our two-tab C-mount package, is rated for >20 W of heat dissipation. The LDM90 Ø9 mm TO Can Laser Mount is only rated for 8 W of heat dissipation, so quantum cascade lasers cannot be operated at full power. Our DFB D-mount laser's maximum heat load is 7.2 W, our FP D-mount lasers' maximum heat load is 25 W, and our HHL QCLs have a maximum heat load of 38 W.

The back face of the C-mount package and the bottom face of the D-mount or high heat load package is machined flat to make proper thermal contact with a heat sink. Ideally, the heat sink will be actively regulated to ensure proper heat conduction. A Thermoelectric Cooler (TEC) is well suited for this task and can easily be incorporated into any standard PID controller. The HHL package incorporates a suitable TEC.

A fan may serve to move the heat away from the TEC and prevent thermal runaway. However, the fan should not blow air on or at the laser itself. Water cooling methods may also be employed for temperature regulation. Although thermal grease is acceptable for TO can and HHL lasers, it should not be used with two-tab C-mount or D-mount lasers, since it can creep, eventually contaminating the laser facet. Pyrolytic graphite is an acceptable alternative to thermal grease for these cases. Solder can also be used to thermally regulate two-tab C-mount lasers, although controlling the thermal resistance at the interface is important for best results. Solder is not recommended for thermal regulation of D-mount or HHL lasers.

Carefully Make Electrical Connections
When making electrical connections, care must be taken. The flux fumes created by soldering can cause laser damage, so care must be taken to avoid this.

Solder can be avoided entirely for two-tab C-mount and TO can lasers by using the LDMC20 or LDM90 laser mounts, respectively. If soldering to the tabs on a two-tab C-mount, solder with the C-mount already attached to a heat sink to avoid unnecessary heating of the laser chip. We do not recommend soldering lasers in TO can packages.

Although soldering to the leads of our HHL lasers is possible, we generally recommend using cables specifically designed for HHL packages. Please note that third-party cables for high heat load packages are typically not rated for the 4.5 A maximum current of the internal thermoelectric cooler. If soldering to the leads on an HHL package, the maximum soldering temperature and time are 250 °C and 10 seconds, respectively.

For D-mount lasers, solder should never be used; wire bonding or probe connections are the only recommended methods.

Minimize Physical Handling
As any interaction with the package carries the risk of contamination and damage, any movement of the laser should be planned in advance and carefully carried out. It is important to avoid mechanical shocks. Dropping the laser package from any height can cause the unit to permanently fail.

Choosing a Collimating Lens

Since the output of our MIR lasers is highly divergent, collimating optics are necessary. Aspheric lenses, which are corrected for spherical aberration, are commonly chosen when the desired beam diameter is between 1 - 5 mm. The simple example below illustrates the key specifications to consider when choosing the correct lens for a given application.

The following example uses our previous generation 3.8 µm Interband Cascade Laser.

Key Specifications

  • Center Wavelength: 3.80 µm
  • Parallel Beam Divergence Angle: 40°
  • Perpendicular Beam Divergence Angle: 60°
  • Desired Collimated Beam Diameter: 4 mm (Major Axis)

The specifications for the laser indicate that the typical parallel and perpendicular FWHM divergences are 40° and 60°, respectively. Therefore, as the light propagates, an elliptical beam will result. To collect as much light as possible during the collimation process, consider the larger of these two divergence angles in your calculations (in this case, 60°).

laser diode collimation drawing
θ = Divergence Angle
Ø = Beam Diameter

Using the information above, the focal length needed to obtain the desired beam diameter can be calculated:

focal length calculation

This information allows the appropriate collimating lens to be selected. Thorlabs offers a large selection of black diamond aspheric lenses for the mid-IR spectral range. Since this laser emits at 3.80 µm, the best AR coating is our -E coating, which provides Ravg < 0.6% per surface from 3 to 5 µm. The lenses with focal lengths closest to the calculated value of 3.46 mm are our 390036-E (unmounted) or C036TME-E (mounted) Molded Aspheric Lenses, which have f = 4.00 mm. Plugging this focal length back into the equation shown above gives a final beam diameter of 4.62 mm along the major axis.

Next, we verify that the numerical aperture (NA) of the lens is larger than the NA of the laser:

NALens = 0.56

NALaser ~ sin (30°) = 0.5

NALens > NALaser

Since NALens > NALaser, the 390036-E or C036TME-E lenses will give acceptable beam quality. However, by using the FWHM beam diameter, we have not accounted for a significant fraction of the beam power. A better practice is to use the 1/e2 beam diameter. For a Gaussian beam profile, the 1/e2 beam diameter is approximately equal to 1.7X the FWHM diameter. The 1/e2 beam diameter is therefore a more conservative estimate of the beam size, containing more of the laser's intensity. Using this value significantly reduces far-field diffraction (since less of the incident light is clipped) and increases the power delivered after the lens.

A good rule of thumb is to pick a lens with an NA of twice the NA of the laser diode. For example, either the 390037-E or the C037TME-E could be used as these lenses each have an NA of 0.85, which a little less than twice that of our IF3800CM2 laser (NA 0.5). Compared to the first set of lenses we identified, these have a shorter focal length of 1.873 mm, resulting in a smaller final beam diameter of 2.16 mm.

Beam Profile Characterization of a Mid-IR Laser

Because quantum cascade lasers (QCLs) and interband cascade lasers (ICLs) have intrinsically large divergence angles, it is necessary to install collimating optics in front of the laser face, as shown in the Collimation tab. We are frequently asked what beam quality can be reasonably expected once the beam has been collimated. This tab presents an M2 measurement we performed using our previous generation 3.80 µm Interband Cascade Laser.

For this system, we obtained M= 1.2 ± 0.08 in the parallel direction and M= 1.3 ± 0.2 in the perpendicular direction. While this is just one example, we believe these results to be representative of well-collimated mid-IR lasers manufactured by Thorlabs, as corroborated by supplementary measurements we have performed in-house.

Experimental Setup

Pyroelectric Camera Upstream of Focus
Click to Enlarge

Pyroelectric Camera Upstream of Focus
Pyroelectric Camera Downstream of Focus
Click to Enlarge

Pyroelectric Camera Downstream of Focus

The apparatus we used to determine M2 is shown schematically in the figure above. In order to ensure that our results were rigorous, all data acquisition and analysis were consistent with the ISO11146 standard.

The previous generation Interband Cascade Laser used for this measurement emitted CW laser light with a center wavelength of 3.781 µm. Our LDMC20 temperature-stabilized mount held the laser's temperature at 25 °C. The output beam was collimated by a C037TME-E lens located immediately downstream of the laser face. This lens was selected because of its large NA of 0.85 (which helped maximize collection of the emitted light) and because of its AR coating (Ravg < 0.6% per surface from 3 µm to 5 µm). We measured 10 mW of output power after the lens.

A pyroelectric camera (Spiricon Pyrocam IV) with 80 µm square pixels was scanned along the beam propagation direction, and the beam width was measured along the parallel and perpendicular directions using the second-order moment (D4σ) definition. Hyperbolas were fit to the beam width to extract M2 for each direction. The camera's internal chopper was triggered at 50 Hz since the pyroelectric effect is sensitive to changes in temperature rather than absolute temperature differences. A ZnSe window was present in front of the detector array to help minimize visible light contributions to the signal.

Beam Profile Measurement
Click to Enlarge

D4σ Beam Width of Collimated IF3800CM2 Laser

Data Analysis
Presented to the right are the second-order moment (D4σ) beam widths for the parallel and perpendicular directions as a function of distance from the laser face (denoted as z). Along the parallel direction, we obtained a minimum beam width of 1.5 mm, while along the perpendicular direction, we obtained a minimum beam width of 1.3 mm. The spatial profiles we observed at the two minimum beam width positions, as obtained by the pyroelectric camera, are shown below.

The divergence of the beam can be described by a hyperbola, as written in Equation 1:

Hyperbola for M^2 Equation (Eq. 1)

In order to obtain the hyperbola coefficients a, b, and c for the parallel and perpendicular directions, we fit the discrete beam width measurements along each direction to hyperbolas, as shown in the graph to the right. These coefficients were substituted into Equation 2 (taking λ = 3.781 µm) to yield M2.

M^2 Equation (Eq. 2)

The hyperbola coefficients and M2 values derived by this method are listed in the table below.

Value Parallel Perpendicular
a 3.6 ± 0.1 mm2 9.7 ± 0.2 mm2
b -0.0096 ± 0.0007 mm -0.0268 ± 0.0008 mm
c (1.61 ± 0.08) × 10-5 (2.27 ± 0.08) × 10-5
M2 1.2 ± 0.08 1.3 ± 0.2

The 0.85 NA of the collimating lens we used is the largest NA of any lens for this wavelength range that is offered in our catalog. Despite this large NA, we observed lobes in the far field (shown by the figure below) that are consistent with clipping of the laser-emitted light. An ideal measurement would not contain these artifacts.

As shown by the graph above and to the right, we observed significant astigmatism in the collimated beam: the beam waist of the parallel direction occurred around z = 300 mm, while the beam waist of the perpendicular direction occurred around z = 600 mm. This astigmatism corresponds closely to what is expected for this laser, given that the IF3800CM2 laser is specified with a parallel FWHM beam divergence of 40° and a perpendicular FWHM beam divergence of 60°.

Beam Profile from Pyrocam
Beam Profile at Beam Waist of Parallel Direction
(Each Pixel is 80 µm Square)
Beam Profile from Pyrocam
Beam Profile at Beam Waist of Perpendicular Direction
(Each Pixel is 80 µm Square)
Selected Distributed Feedback QCLsa
Item # Nominal Center Frequency Targeted Gas(es)
QD8650CM1 1156 cm-1 (8.65 µm) O3 (Ozone)
SO2 (Sulfur Dioxide)
QD8050CM1 1242 cm-1 (8.05 µm) CH4 (Methane)
HONO (Nitrous Acid)
QD7950CM1 1258 cm-1 (7.95 µm) CH4 (Methane)
HONO (Nitrous Acid)
QD5250CM1 1905 cm-1 (5.25 µm) NO (Nitric Oxide)
QD4580CM1 2183 cm-1 (4.58 µm) CO (Carbon Monoxide)
N2O (Nitrous Oxide)
  • This table is intended as a reference. Each DFB QCL is a unique device with its own spectrum, and does not necessarily emit at the exact absorption line required for a given experiment. To verify that the QCL you receive will meet your needs, please download its data sheet. Click "Choose Item" below, then click on the Docs icon (Docs Icon) next to the serial number of the laser.

Gas-Phase Spectroscopy Using Distributed Feedback Lasers

Distributed Feedback Quantum Cascade Lasers (DFB QCLs) offer many attractive features for spectroscopy. They emit at a single wavelength within the mid-IR, where many gaseous species characteristically absorb. Moreover, their emission wavelength is easily tuned (typical tuning range: 1 - 5 cm-1) by changing the drive current and operating temperature of the laser, making them ideal for isolating narrow gas absorption lines. Finally, they offer relatively high output power (typically 40 - 120 mW at rollover current), helping improve measurement sensitivity.

Thorlabs' DFB QCLs emit at wavelengths that range from 4.00 to 11.00 µm (2500 cm-1 to 909 cm-1). If we do not stock the wavelength required for your application, custom wavelengths are available by contacting Tech Support.

The tuning range of individual DFB QCLs depends greatly on the actual laser device. Each DFB QCL is a unique device with its own threshold current, rollover current, and spectrum. With typical lasers, it is usually preferable to operate the laser at or near the rollover current, since the output power is lowest at threshold and highest at rollover. On the other hand, the wavelength of DFB QCLs changes as a function of the current, so operating at the rollover current is not always possible in spectroscopy measurements, which require specific wavelengths. (It is important to note that the output power is not constant over the entire tuning range.)

 

Tuning Example
To demonstrate DFB QCLs' tunability, we measured the center wavelength of a QD4580CM1 laser as a function of drive current, from threshold to near rollover, at 15 °C and 25 °C. Over the entire temperature and drive current range, we obtained center wavelengths from 4.568 µm to 4.586 µm (2189.14 cm-1 to 2180.77 cm-1), spanning a range of 18 nm (8.37 cm-1), with output power ranging from 3.2 mW (at threshold current) to 39.1 mW (at near-rollover current). Since the laser is capable of operating at 35 °C, even broader wavelength tuning is also achievable.

DFB QCL Temperature Tuning
Click to Enlarge

DFB QCL Center Frequency as Function of Temperature and Drive Current
Sample QD4580CM1 Spectrum and Output Power
Current 15 °C 25 °C
Center Frequency Output
Power
Center Frequency Output
Power
300 mA 2189.14 cm-1 (4.568 µm) 8.4 mW 2187.34 cm-1 (4.572 µm) 3.2 mW
350 mA 2188.12 cm-1 (4.570 µm) 19.6 mW 2186.26 cm-1 (4.574 µm) 11.9 mW
400 mA 2186.92 cm-1 (4.573 µm) 28.3 mW 2185.05 cm-1 (4.577 µm) 18.9 mW
450 mA 2185.71 cm-1 (4.575 µm) 33.7 mW 2183.78 cm-1 (4.579 µm) 23.5 mW
500 mA 2184.33 cm-1 (4.578 µm) 37.1 mW 2182.34 cm-1 (4.582 µm) 26.6 mW
550 mA 2182.76 cm-1 (4.581 µm) 39.1 mW 2180.77 cm-1 (4.586 µm) 28.2 mW
Laser Packages of QCLs
Click to Enlarge

Some of Our Available Packages
Wire Bonding
Click for Details

Wire Bonding a Quantum Cascade Laser on a C-Mount

Custom & OEM Quantum Cascade and Interband Cascade Lasers

At our semiconductor manufacturing facility in Jessup, Maryland, we build a wide range of mid-IR lasers and gain chips. Our engineering team performs in-house epitaxial growth, wafer fabrication, and laser packaging. We maintain chip inventory from 3 µm to 12 µm, and our vertically integrated facilities are well equipped to fulfill unique requests.

High-Power Fabry-Perot QCLs
For Fabry-Perot lasers, we can reach multi-watt output power on certain custom orders. The available power depends upon several factors, including the wavelength and the desired package.

DFB QCLs at Custom Wavelengths
For distributed feedback (DFB) lasers, we can deliver a wide range of center wavelengths with user-defined wavelength precision. Our semiconductor specialists will take your application requirements into account when discussing the options with you.

The graphs below and photos to the right illustrate some of our custom capabilities. Please visit our semiconductor manufacturing capabilities presentation to learn more.

Contact Thorlabs

Custom QCL Wavelengths
Click to Enlarge

Available Wavelengths for Custom QCLs and ICLs
High-Power QCLs
Click to Enlarge

Maximum Output Power of Custom Fabry-Perot QCLs
QCL Gain Chips
Click to Enlarge

Electroluminescence Spectra of Available Gain Chip Material

Posted Comments:
user  (posted 2016-10-14 11:21:05.987)
We need the MIR light visualize to check collimation. Which part number should we choose. Let us know the web link?
jlow  (posted 2016-10-14 12:08:44.0)
Response from Jeremy at Thorlabs: You can use the VRC6 to help visualize the MIR light.

The rows shaded green below denote single-frequency lasers.

Item #WavelengthOutput
Power
Operating
Current
Operating
Voltage
Beam
Divergence
Spatial
Mode
Package
ParallelPerpendicular
L375P70MLD375 nm70 mW110 mA5.4 V22.5°Single ModeØ5.6 mm
L404P400M404 nm400 mW370 mA4.9 V13° (1/e2)42° (1/e2)MultimodeØ5.6 mm
LP405-SF10405 nm10 mW50 mA5.0 V--Single ModeØ5.6 mm, SM Pigtail
L405P20405 nm20 mW38 mA4.8 V8.5°19°Single ModeØ5.6 mm
L405G2405 nm35 mW50 mA4.9 V10°21°Single ModeØ3.8 mm
DL5146-101S405 nm40 mW70 mA5.2 V19°Single ModeØ5.6 mm
L405P150405 nm150 mW138 mA4.9 VSingle ModeØ3.8 mm
LP405-MF300405 nm300 mW350 mA4.5 V--MultimodeØ5.6 mm, MM Pigtail
L405G1405 nm1000 mW900 mA5.0 V13°45°MultimodeØ9 mm
L450G1447 nm3000 mW2000 mA5.2 V30°MultimodeØ9 mm
LP450-SF15450 nm15 mW85 mA5.5 V--Single ModeØ9 mm, SM Pigtail
PL450B450 nm80 mW100 mA5.8 V4 - 11°18 - 25°Single ModeØ3.8 mm
L450P1600MM450 nm1600 mW1200 mA4.8 V19 - 27°MultimodeØ5.6 mm
L473P100473 nm100 mW120 mA5.7 V1024Single ModeØ5.6 mm
LP488-SF20488 nm20 mW70 mA6.0 V--Single ModeØ5.6 mm, SM Pigtail
L488P60488 nm60 mW75 mA6.8 V23°Single ModeØ5.6 mm
L515A1515 nm10 mW50 mA5.4 V6.5°21°Single ModeØ5.6 mm
LP520-SF15520 nm15 mW140 mA6.5 V--Single ModeØ9 mm, SM Pigtail
PL520520 nm50 mW250 mA7.0 V22°Single ModeØ3.8 mm
L520P50520 nm45 mW150 mA7.0 V22°Single ModeØ5.6 mm
L520G1520 nm900 mW1600 mA4.8 V7.5°25°MultimodeØ9 mm (non-standard)
DJ532-10532 nm10 mW220 mA1.9 V0.69°0.69°Single ModeØ9.5 mm (non-standard)
DJ532-40532 nm40 mW330 mA1.9 V0.69°0.69°Single ModeØ9.5 mm (non-standard)
LP633-SF50633 nm50 mW170 mA2.6 V--Single ModeØ5.6 mm, SM Pigtail
HL63163DG633 nm100 mW170 mA2.6 V8.5°18°Single ModeØ5.6 mm
LPS-635-FC635 nm2.5 mW70 mA2.2 V--Single ModeØ9.5 mm, SM Pigtail
LPS-PM635-FC635 nm2.5 mW70 mA2.2 V--Single ModeØ9.5 mm, PM Pigtail
L635P5635 nm5 mW30 mA<2.7 V32°Single ModeØ5.6 mm
HL6312G635 nm5 mW55 mA<2.7 V31°Single ModeØ9 mm
LPM-635-SMA635 nm8 mW50 mA2.2 V--MultimodeØ9 mm, MM Pigtail
LP635-SF8635 nm8 mW60 mA2.3 V--Single ModeØ5.6 mm, SM Pigtail
HL6320G635 nm10 mW70 mA<2.7 V31°Single ModeØ9 mm
HL6322G635 nm15 mW85 mA<2.7 V30°Single ModeØ9 mm
L637P5637 nm5 mW20 mA<2.4 V34°Single ModeØ5.6 mm
LP637-SF50637 nm50 mW140 mA2.6 V--Single ModeØ5.6 mm, SM Pigtail
LP637-SF70637 nm70 mW220 mA2.7 V--Single ModeØ5.6 mm, SM Pigtail
HL63142DG637 nm100 mW140 mA2.7 V18°Single ModeØ5.6 mm
HL63133DG637 nm170 mW250 mA2.8 V17°Single ModeØ5.6 mm
HL6388MG637 nm250 mW340 mA2.3 V10°40°MultimodeØ5.6 mm
L637G1637 nm1200 mW1100 mA2.5 V10°32°MultimodeØ9 mm (non-standard)
L638P040638 nm40 mW92 mA2.4 V10°21°Single ModeØ5.6 mm
L638P150638 nm150 mW230 mA2.7 V918Single ModeØ3.8 mm
L638P200638 nm200 mW280 mA2.9 V814Single ModeØ5.6 mm
L638P700M638 nm700 mW820 mA2.2 V35°MultimodeØ5.6 mm
HL6358MG639 nm10 mW40 mA2.3 V21°Single ModeØ5.6 mm
HL6323MG639 nm30 mW95 mA2.3 V8.5°30°Single ModeØ5.6 mm
HL6362MG640 nm40 mW90 mA2.4 V10°21°Single ModeØ5.6 mm
LP642-SF20642 nm20 mW90 mA2.5 V--Single ModeØ5.6 mm, SM Pigtail
LP642-PF20642 nm20 mW90 mA2.5 V--Single ModeØ5.6 mm, PM Pigtail
HL6364DG642 nm60 mW125 mA2.5 V10°21°Single ModeØ5.6 mm
HL6366DG642 nm80 mW155 mA2.5 V10°21°Single ModeØ5.6 mm
HL6385DG642 nm150 mW280 mA2.6 V17°Single ModeØ5.6 mm
L650P007650 nm7 mW28 mA2.2 V28°Single ModeØ5.6 mm
LPS-660-FC658 nm7.5 mW65 mA2.6 V--Single ModeØ5.6 mm, SM Pigtail
LP660-SF20658 nm20 mW80 mA2.6 V--Single ModeØ5.6 mm, SM Pigtail
LPM-660-SMA658 nm22.5 mW65 mA2.6 V--MultimodeØ5.6 mm, MM Pigtail
HL6501MG658 nm30 mW65 mA2.6 V8.5°22°Single ModeØ5.6 mm
L658P040658 nm40 mW75 mA2.2 V10°20°Single ModeØ5.6 mm
LP660-SF40658 nm40 mW135 mA2.5 V--Single ModeØ5.6 mm, SM Pigtail
LP660-SF60658 nm60 mW210 mA2.4 V--Single ModeØ5.6 mm, SM Pigtail
HL6544FM660 nm50 mW115 mA2.3 V10°17°Single ModeØ5.6 mm
LP660-SF50660 nm50 mW140 mA2.3 V--Single ModeØ5.6 mm, SM Pigtail
HL6545MG660 nm120 mW170 mA2.45 V10°17°Single ModeØ5.6 mm
L660P120660 nm120 mW175 mA2.5 V10°17°Single ModeØ5.6 mm
LPS-675-FC670 nm2.5 mW55 mA2.2 V--Single ModeØ9 mm, SM Pigtail
HL6748MG670 nm10 mW30 mA2.2 V25°Single ModeØ5.6 mm
HL6714G670 nm10 mW55 mA<2.7 V22°Single ModeØ9 mm
HL6756MG670 nm15 mW35 mA2.3 V24°Single ModeØ5.6 mm
SLD1332V670 nm500 mW800 mA2.4 V23°MultimodeØ9 mm
LP685-SF15685 nm15 mW55 mA2.1 V--Single ModeØ5.6 mm, SM Pigtail
HL6750MG685 nm50 mW75 mA2.3 V21°Single ModeØ5.6 mm
HL6738MG690 nm30 mW90 mA2.5 V8.5°19°Single ModeØ5.6 mm
LP705-SF15705 nm15 mW55 mA2.3 V--Single ModeØ5.6 mm, SM Pigtail
HL7001MG705 nm40 mW75 mA2.5 V18°Single ModeØ5.6 mm
HL7302MG730 nm40 mW75 mA2.5 V18°Single ModeØ5.6 mm
DBR760PN761 nm9 mW125 mA2.0 V--Single FrequencyButterfly, PM Pigtail
L780P010780 nm10 mW24 mA1.8 V30°Single ModeØ5.6 mm
LP780-SAD15780 nm15 mW180 mA2.2 V--Single FrequencyØ9 mm, SM Pigtail
DBR780PN781 nm45 mW250 mA1.9 V--Single FrequencyButterfly, PM Pigtail
L785P5785 nm5 mW28 mA1.9 V10°29°Single ModeØ5.6 mm
LPS-PM785-FC785 nm6.25 mW65 mA---Single ModeØ5.6 mm, PM Pigtail
LPS-785-FC785 nm10 mW65 mA1.85 V--Single ModeØ5.6 mm, SM Pigtail
LP785-SF20785 nm20 mW85 mA1.9 V--Single ModeØ5.6 mm, SM Pigtail
DBR785S785 nm25 mW230 mA2.0 V--Single FrequencyButterfly, SM Pigtail
DBR785P785 nm25 mW230 mA2.0 V--Single FrequencyButterfly, PM Pigtail
L785P25785 nm25 mW45 mA1.9 V30°Single ModeØ5.6 mm
FPV785S785 nm50 mW410 mA2.2 V--Single FrequencyButterfly, SM Pigtail
FPV785P785 nm50 mW410 mA2.1 V--Single FrequencyButterfly, PM Pigtail
LP785-SAV50785 nm50 mW500 mA2.2 V--Single FrequencyØ9 mm, SM Pigtail
L785P090785 nm90 mW120 mA2.0 V16°Single ModeØ5.6 mm
LP785-SF100785 nm100 mW300 mA2.0 V--Single ModeØ9 mm, SM Pigtail
L785H1785 nm200 mW220 mA2.5 V8.5°16°Single ModeØ5.6 mm
FPL785S-250785 nm250 mW (Min)500 mA2.0 V--Single ModeButterfly, SM Pigtail
LD785-SEV300785 nm300 mW500 mA (Max)2.0 V16°Single FrequencyØ9 mm
LD785-SH300785 nm300 mW400 mA2.0 V18°Single ModeØ9 mm
FPL785C785 nm300 mW400 mA2.0 V18°Single Mode3 mm x 5 mm Submount
LD785-SE400785 nm400 mW550 mA2.0 V16°Single ModeØ9 mm
DBR795PN795 nm40 mW230 mA2.0 V--Single FrequencyButterfly, PM Pigtail
ML620G40805 nm500 mW650 mA1.9 V34°MultimodeØ5.6 mm
L808P010808 nm10 mW50 mA2 V10°30°Single ModeØ5.6 mm
L808P030808 nm30 mW65 mA2 V10°30°Single ModeØ5.6 mm
M9-808-0150808 nm150 mW180 mA1.9 V17°Single ModeØ9 mm
L808P200808 nm200 mW260 mA2 V10°30°MultimodeØ5.6 mm
LD808-SEV500808 nm500 mW800 mA (Max)2.2 V14°Single FrequencyØ9 mm
FPL808S808 nm200 mW750 mA2.3 V--Single ModeButterfly, SM Pigtail
LD808-SE500808 nm500 mW750 mA2.2 V14°Single ModeØ9 mm
L808P500MM808 nm500 mW650 mA1.8 V12°30°MultimodeØ5.6 mm
L808P1000MM808 nm1000 mW1100 mA2 V30°MultimodeØ9 mm
LP820-SF80820 nm80 mW230 mA2.3 V--Single ModeØ5.6 mm, SM Pigtail
L820P100820 nm100 mW145 mA2.1 V17°Single ModeØ5.6 mm
L820P200820 nm200 mW250 mA2.4 V17°Single ModeØ5.6 mm
DBR828PN828 nm24 mW250 mA2.0 V--Single FrequencyButterfly, PM Pigtail
LPS-830-FC830 nm10 mW120 mA---Single ModeØ5.6 mm, SM Pigtail
LPS-PM830-FC830 nm10 mW120 mA---Single ModeØ5.6 mm, PM Pigtail
LP830-SF30830 nm30 mW115 mA1.9 V--Single ModeØ9 mm, SM Pigtail
HL8338MG830 nm50 mW75 mA1.9 V22°Single ModeØ5.6 mm
FPL830S830 nm350 mW900 mA2.5 V--Single ModeButterfly, SM Pigtail
LD830-SE650830 nm650 mW900 mA2.3 V13°Single ModeØ9 mm
LD830-MA1W830 nm1 W1.330 A2.1 V24°MultimodeØ9 mm
LD830-ME2W830 nm2 W3 A (Max)2.0 V21°MultimodeØ9 mm
L840P200840 nm200 mW255 mA2.4 V917Single ModeØ5.6 mm
L850VG1850 nm2 mW4 mA2.2 V12°Single FrequencyTO-46
L850P010850 nm10 mW50 mA2 V10°30°Single ModeØ5.6 mm
L850P030850 nm30 mW65 mA2 V8.5°30°Single ModeØ5.6 mm
LP850-SF80850 nm80 mW230 mA2.3 V--Single ModeØ5.6 mm, SM Pigtail
L850P200850 nm200 mW255 mA2.4 V917Single ModeØ5.6 mm
FPV852S852 nm20 mW400 mA2.2 V--Single FrequencyButterfly, SM Pigtail
FPV852P852 nm20 mW400 mA2.2 V--Single FrequencyButterfly, PM Pigtail
DBR852PN852 nm24 mW300 mA2.0 V--Single FrequencyButterfly, PM Pigtail
LP852-SF30852 nm30 mW115 mA1.9 V--Single ModeØ9 mm, SM Pigtail
L852P50852 nm50 mW75 mA1.9 V22°Single ModeØ5.6 mm
L852P100852 nm100 mW120 mA1.9 V28°Single ModeØ9 mm
L852P150852 nm150 mW170 mA1.9 V18°Single ModeØ9 mm
FPL852S852 nm350 mW900 mA2.5 V--Single ModeButterfly, SM Pigtail
LD852-SE600852 nm600 mW950 mA2.3 V7° (1/e2)13° (1/e2)Single ModeØ9 mm
LD852-SEV600852 nm600 mW1050 mA (Max)2.2 V13° (1/e2)Single FrequencyØ9 mm
LP880-SF3880 nm3 mW25 mA2.2 V--Single ModeØ5.6 mm, SM Pigtail
L880P010880 nm10 mW30 mA2.0 V12°37°Single ModeØ5.6 mm
L904P010904 nm10 mW50 mA2 V10°30°Single ModeØ5.6 mm
LP915-SF40915 nm40 mW130 mA1.5 V--Single ModeØ9 mm, SM Pigtail
M9-915-0300915 nm300 mW370 mA1.9 V28°Single ModeØ9 mm
LP940-SF30940 nm30 mW90 mA1.5 V--Single ModeØ9 mm, SM Pigtail
M9-940-0200940 nm200 mW270 mA1.9 V28°Single ModeØ9 mm
FPV976S976 nm30 mW400 mA (Max)2.2 V--Single FrequencyButterfly, SM Pigtail
FPV976P976 nm30 mW400 mA (Max)2.2 V--Single FrequencyButterfly, PM Pigtail
DBR976PN976 nm33 mW450 mA2.0 V--Single FrequencyButterfly, PM Pigtail
DBR976S976 nm50 mW150 mA2.0 V--Single FrequencyButterfly, SM Pigtail
BL976-SAG300976 nm300 mW470 mA2.0 V--Single ModeButterfly, SM Pigtail
BL976-PAG500976 nm500 mW830 mA2.0 V--Single ModeButterfly, PM Pigtail
BL976-PAG700976 nm700 mW1090 mA2.0 V--Single ModeButterfly, PM Pigtail
BL976-PAG900976 nm900 mW1480 mA2.5 V--Single ModeButterfly, PM Pigtail
L980P010980 nm10 mW25 mA2 V10°30°Single ModeØ5.6 mm
LP980-SF15980 nm15 mW70 mA1.5 V--Single ModeØ5.6 mm, SM Pigtail
L980P030980 nm30 mW100 mA1.5 V10°30°Single ModeØ5.6 mm
L9805E2P5980 nm50 mW95 mA1.5 V33°Single ModeØ5.6 mm
L980P100A980 nm100 mW150 mA1.6 V32°MultimodeØ5.6 mm
L980P200980 nm200 mW300 mA1.5 V30°MultimodeØ5.6 mm
L1060P200J1060 nm200 mW280 mA1.3 V32°Single ModeØ9 mm
DBR1064S1064 nm40 mW150 mA2.0 V--Single FrequencyButterfly, SM Pigtail
DBR1064P1064 nm40 mW150 mA2.0 V--Single FrequencyButterfly, PM Pigtail
DBR1064PN1064 nm110 mW550 mA2.0 V--Single FrequencyButterfly, PM Pigtail
LPS-1060-FC1064 nm50 mW220 mA1.4 V--Single ModeØ9 mm, SM Pigtail
M9-A64-02001064 nm200 mW280 mA1.7 V28°Single ModeØ9 mm
M9-A64-03001064 nm300 mW390 mA1.7 V28°Single ModeØ9 mm
LP1310-SAD21310 nm2.0 mW40 mA1.1 V--Single FrequencyØ5.6 mm, SM Pigtail
LPS-1310-FC1310 nm2.5 mW20 mA1.1 V--Single ModeØ5.6 mm, SM Pigtail
LPS-PM1310-FC1310 nm2.5 mW20 mA1.1 V--Single ModeØ5.6 mm, PM Pigtail
L1310P5DFB1310 nm5 mW20 mA1.1 VSingle FrequencyØ5.6 mm
ML725B8F1310 nm5 mW20 mA1.1 V25°30°Single ModeØ5.6 mm
LPSC-1310-FC1310 nm50 mW350 mA2 V--Single ModeØ5.6 mm, SM Pigtail
FPL1053S1310 nm130 mW400 mA1.7 V--Single ModeButterfly, SM Pigtail
FPL1053P1310 nm130 mW400 mA1.7 V--Single ModeButterfly, PM Pigtail
FPL1053T1310 nm300 mW (Pulsed)750 mA2 V15°28°Single ModeØ5.6 mm
FPL1053C1310 nm300 mW (Pulsed)750 mA2 V15°27°Single ModeChip on Submount
L1310G11310 nm2000 mW5 A1.5 V24°MultimodeØ9 mm
L1370G11370 nm2000 mW5 A1.4 V22°MultimodeØ9 mm
L1450G11450 nm2000 mW5 A1.4 V22°MultimodeØ9 mm
L1480G11480 nm2000 mW5 A1.6 V20°MultimodeØ9 mm
LPS-1550-FC1550 nm1.5 mW30 mA1.0 V--Single ModeØ5.6 mm, SM Pigtail
LPS-PM1550-FC1550 nm1.5 mW30 mA1.1 V--Single ModeØ5.6 mm, SM Pigtail
LP1550-SAD21550 nm2.0 mW40 mA1.0 V--Single FrequencyØ5.6 mm, SM Pigtail
L1550P5DFB1550 nm5 mW20 mA1.1 V10°Single FrequencyØ5.6 mm
ML925B45F1550 nm5 mW30 mA1.1 V25°30°Single ModeØ5.6 mm
SFL1550S1550 nm40 mW300 mA1.5 V--Single FrequencyButterfly, SM Pigtail
SFL1550P1550 nm40 mW300 mA1.5 V--Single FrequencyButterfly, PM Pigtail
LPSC-1550-FC1550 nm50 mW250 mA2 V--Single ModeØ5.6 mm, SM Pigtail
FPL1009S1550 nm100 mW400 mA1.4 V--Single ModeButterfly, SM Pigtail
FPL1009P1550 nm100 mW400 mA1.4 V--Single ModeButterfly, PM Pigtail
FPL1001C1550 nm150 mW400 mA1.4 V18°31°Single ModeChip on Submount
FPL1055T1550 nm300 mW (Pulsed)750 mA2 V15°28°Single ModeØ5.6 mm
FPL1055C1550 nm300 mW (Pulsed)750 mA2 V15°28°Single ModeChip on Submount
L1550G11550 nm1700 mW5 A1.5 V28°MultimodeØ9 mm
L1575G11575 nm1700 mW5 A1.5 V28°MultimodeØ9 mm
LPSC-1625-FC1625 nm50 mW350 mA1.5 V--Single ModeØ5.6 mm, SM Pigtail
FPL1054S1625 nm80 mW400 mA1.7 V--Single ModeButterfly, SM Pigtail
FPL1054P1625 nm80 mW400 mA1.7 V--Single ModeButterfly, PM Pigtail
FPL1054C1625 nm250 mW (Pulsed)750 mA2 V15°28°Single ModeChip on Submount
FPL1054T1625 nm250 mW (Pulsed)750 mA2 V15°28°Single ModeØ5.6 mm
FPL1059S1650 nm80 mW400 mA1.7 V--Single ModeButterfly, SM Pigtail
FPL1059P1650 nm80 mW400 mA1.7 V--Single ModeButterfly, PM Pigtail
FPL1059C1650 nm225 mW (Pulsed)750 mA2 V15°28°Single ModeChip on Submount
FPL1059T1650 nm225 mW (Pulsed)750 mA2 V15°28°Single ModeØ5.6 mm
FPL1940S1940 nm15 mW400 mA2 V--Single ModeButterfly, SM Pigtail
FPL2000S2 µm15 mW400 mA2 V--Single ModeButterfly, SM Pigtail
FPL2000C2 µm30 mW400 mA5.2 V19°Single ModeChip on Submount
QD4500CM14.00 - 5.00 µm (DFB)40 mW<500 mA10.5 V30°40°Single FrequencyTwo-Tab C-Mount
QF4050D24.05 µm (FP)800 mW750 mA13 V30°40°Single ModeD-Mount
QF4050D34.05 µm (FP)1200 mW1000 mA13 V30°40°Single ModeD-Mount
QF4400CM14.40 µm (FP)500 mW1020 mA10.7 V26°53°Single ModeTwo-Tab C-Mount
QD4580CM14.54 - 4.62 µm (DFB)40 mW<600 mA10.5 V50°30°Single FrequencyTwo-Tab C-Mount
QF4550CM14.55 µm (FP)450 mW900 mA10.5 V30°55°Single ModeTwo-Tab C-Mount
QF4600T14.60 µm (FP)400 mW800 mA12.0 V40°30°Single ModeØ9 mm
QF4800CM14.80 µm (FP)500 mW850 mA15.5 V33°53°Single ModeTwo-Tab C-Mount
QD5500CM15.00 - 8.00 µm (DFB)40 mW<700 mA9.5 V30 °45 °Single FrequencyTwo-Tab C-Mount
QD5250CM15.20 - 5.30 µm (DFB)120 mW<660 mA10.2 V41°52°Single FrequencyTwo-Tab C-Mount
QF5300CM15.30 µm (FP)150 mW1200 mA9.0 V30°55°Single ModeTwo-Tab C-Mount
QD6500CM16.00 - 7.00 µm (DFB)40 mW<650 mA10 V35 °50 °Single FrequencyTwo-Tab C-Mount
QF7200CM17.20 µm (FP)250 mW1300 mA8.5 V35°65°Single ModeTwo-Tab C-Mount
QD7500CM17.00 - 8.00 µm (DFB)40 mW<600 mA10 V40°50°Single FrequencyTwo-Tab C-Mount
QD7500DM17.00 - 8.00 µm (DFB)100 mW<600 mA11.5 V40°55°Single FrequencyD-Mount
QF7700CM17.70 µm (FP)250 mW1100 mA7.8 V37°65°Single ModeTwo-Tab C-Mount
QD7950CM17.90 - 8.00 µm (DFB)100 mW<1000 mA9.5 V55°70°Single FrequencyTwo-Tab C-Mount
QD8050CM18.00 - 8.10 µm (DFB)100 mW<1000 mA9.5 V55°70°Single FrequencyTwo-Tab C-Mount
QD8500CM18.00 - 9.00 µm (DFB)100 mW<900 mA9.5 V40 °55 °Single FrequencyTwo-Tab C-Mount
QD8500HHLH8.00 - 9.00 µm (DFB)100 mW<600 mA10.2 V--Single FrequencyHorizontal HHL
QF8350CM18.55 µm (FP)300 mW1750 mA8.5 V55°70°Single ModeTwo-Tab C-Mount
QD8650CM18.60 - 8.70 µm (DFB)50 mW<900 mA9.5 V55°70°Single FrequencyTwo-Tab C-Mount
QD9500CM19.00 - 10.00 µm (DFB)60 mW<800 mA9.5 V40°55°Single FrequencyTwo-Tab C-Mount
QD9500HHLH9.00 - 10.00 µm (DFB)100 mW<600 mA10.2 V--Single FrequencyHorizontal HHL
QF9550CM19.55 µm (FP)80 mW1500 mA7.8 V35°60°Single ModeTwo-Tab C-Mount
QD10500CM110.00 - 11.00 µm (DFB)40 mW<600 mA10 V40°55°Single FrequencyTwo-Tab C-Mount

The rows shaded green above denote single-frequency lasers.

4.05 - 4.80 µm Center Wavelength Fabry-Perot QCLs

Item # Info Center Wavelengtha Powerb Typical/Max Operating Currentb Package Wavelength Tested Spatial Mode
QF4050D2 info 4.05 µm (2469 cm-1) 800 mW 750 mA / 1300 mA D-Mountc Yes Single Mode
QF4050D3 info 4.05 µm (2469 cm-1) 1200 mW 1000 mA / 1800 mA D-Mountc Yes Single Mode
QF4400CM1 info 4.40 µm (2273 cm-1) 500 mW 1020 mA / 1100 mA Two-Tab C-Mount Yes Single Mode
QF4550CM1d info 4.55 µm (2198 cm-1) 450 mW 900 mA / 1100 mA Two-Tab C-Mount Yes Single Mode
QF4600T1 info 4.60 µm (2174 cm-1) 400 mW 800 mA (Max) Ø9 mme Yes Single Mode
QF4800CM1 info 4.80 µm (2083 cm-1) 500 mW 850 mA / 1050 mA Two-Tab C-Mount Yes Single Mode
  • Fabry-Perot Lasers exhibit broadband emission. The center wavelength is defined as a weighted average over all the modes. Each device has a unique spectrum. To get the spectrum of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number of the device. If you need spectral characteristics different than those shown below, please contact Tech Support to request a custom laser.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • Additional information on the D-mount package is available at its full web presentation.
  • If emission at a single wavelength is preferred, please consider the 4.54 - 4.62 µm Distributed Feedback Lasers sold below.
  • The Ø9 mm package for the QF4600T1 is 4.30 mm (0.17") thick, which is more than the standard 1.50 mm (0.06"). The laser will still be compatible with all Ø9 mm laser mounts; please see the Drawing tab in the blue info icon (info) above for full package specifications.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQF4050D2 Support Documentation
QF4050D2Fabry-Perot QCL, 3.90 - 4.20 µm CWL, 800 mW, D-Mount
$7,210.00
Lead Time
This item is out of stock and currently has a  lead time
Choose ItemQF4050D3 Support Documentation
QF4050D3Fabry-Perot QCL, 3.90 - 4.20 µm CWL, 1200 mW, D-Mount
$8,755.00
Lead Time
This item is out of stock and currently has a  lead time
Choose ItemQF4400CM1 Support Documentation
QF4400CM1Fabry-Perot Quantum Cascade Laser, 4.40 µm CWL, 500 mW, Two-Tab C-Mount
$5,156.34
Today
Choose ItemQF4550CM1 Support Documentation
QF4550CM1Fabry-Perot Quantum Cascade Laser, 4.55 µm CWL, 450 mW, Two-Tab C-Mount
$5,156.34
Today
Choose ItemQF4600T1 Support Documentation
QF4600T1Fabry-Perot Quantum Cascade Laser, 4.60 µm CWL, 400 mW, Ø9 mm, H Pin Code
$3,500.00
Today
Choose ItemQF4800CM1 Support Documentation
QF4800CM1Fabry-Perot Quantum Cascade Laser, 4.80 µm CWL, 500 mW, Two-Tab C-Mount
$5,156.34
Today

4.00 - 5.00 µm Center Wavelength DFB QCLs

Item # Info Center Wavelengtha Tuning Range (Typ.) Powerb Max Operating
Currentb
Package Wavelength Tested Spatial Mode
QD4500CM1 info Varies from 4.00 to 5.00 µm
(2500 to 2000 cm-1)
2 cm-1 40 mW (Typ.) 500 mAc Two-Tab C-Mount Yes Single Frequencyd
QD4580CM1e info Varies from 4.54 to 4.62 µm
(2203 to 2165 cm-1)
4 cm-1 40 mW (Typ.) 600 mA Two-Tab C-Mount Yes Single Frequencyd
  • Distributed Feedback Lasers emit at a well defined wavelength that can be tuned over a narrow range. Each device has different optical characteristics. To get the spectrum and output power of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number. If you need a wavelength that is not listed below, please request it by contacting Tech Support.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • Please note that the absolute maximum current is determined on a device-by-device basis. It is listed on the device's data sheet. To view, click "Choose Item" below, then click on the Docs Icon next to the serial number.
  • Single-Frequency Laser (Single Longitudinal Mode)
  • If broadband emission is preferred, please consider the 4.55 µm Fabry-Perot Lasers sold above.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQD4500CM1 Support Documentation
QD4500CM1DFB QCL, 4.00 - 5.00 µm CWL, 2 cm-1 Tuning, 40 mW, Two-Tab C-Mount
$6,660.80
Today
Choose ItemQD4580CM1 Support Documentation
QD4580CM1DFB QCL, 4.54 - 4.62 µm CWL, 4 cm-1 Tuning, 40 mW, Two-Tab C-Mount
$6,660.80
Today

5.00 - 6.00 µm Center Wavelength DFB QCLs

Item # Info Center Wavelengtha Tuning Range (Typ.) Powerb Max Operating
Currentb
Package Wavelength Tested Spatial Mode
QD5500CM1c info Varies from 5.00 to 6.00 µm
(2000 to 1667 cm-1)
2.5 cm-1 40 mW (Typ.) 700 mAd Two-Tab C-Mount Yes Single Frequencye
QD5250CM1c info Varies from 5.20 to 5.30 µm
(1923 to 1887 cm-1)
4 cm-1 120 mW (Typ.) 660 mA Two-Tab C-Mount Yes Single Frequencye
  • Distributed Feedback Lasers emit at a well defined wavelength that can be tuned over a narrow range. Each device has different optical characteristics. To get the spectrum and output power of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number. If you need a wavelength that is not listed below, please request it by contacting Tech Support.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • If broadband emission is preferred, please consider the 5.30 µm Fabry-Perot Lasers sold below.
  • Please note that the absolute maximum current is determined on a device-by-device basis. It is listed on the device's data sheet. To view, click "Choose Item" below, then click on the Docs Icon next to the serial number.
  • Single-Frequency Laser (Single Longitudinal Mode)
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQD5500CM1 Support Documentation
QD5500CM1DFB QCL, 5.00 - 6.00 µm CWL, 2.5 cm-1 Tuning, 40 mW, Two-Tab C-Mount
$6,660.80
Today
Choose ItemQD5250CM1 Support Documentation
QD5250CM1DFB QCL, 5.20 - 5.30 µm CWL, 4 cm-1 Tuning, 120 mW, Two-Tab C-Mount
$6,660.80
Today

5.30 µm Center Wavelength Fabry-Perot QCL

Item # Info Center Wavelengtha Powerb Typical/Max Operating Currentb Package Wavelength Tested Spatial Mode
QF5300CM1c info 5.30 µm (1887 cm-1) 150 mW 1200 mA / 1300 mA Two-Tab C-Mount Yes Single Mode
  • Fabry-Perot Lasers exhibit broadband emission. The center wavelength is defined as a weighted average over all the modes. Each device has a unique spectrum. To get the spectrum of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number of the device. If you need spectral characteristics different than those shown below, please contact Tech Support to request a custom laser.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • If emission at a single wavelength is preferred, please consider the 5.20 - 5.30 µm Distributed Feedback Lasers sold above.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQF5300CM1 Support Documentation
QF5300CM1Fabry-Perot Quantum Cascade Laser, 5.30 µm CWL, 150 mW, Two-Tab C-Mount
$5,156.34
Today

6.00 - 7.00 µm Center Wavelength DFB QCL

Item # Info Center Wavelengtha Tuning Range (Typ.) Powerb Max Operating
Currentb
Package Wavelength Tested Spatial Mode
QD6500CM1 info Varies from 6.00 to 7.00 µm
(1667 to 1429 cm-1)
2 cm-1 40 mW (Typ.) 650 mAc Two-Tab C-Mount Yes Single Frequencyd
  • Distributed Feedback Lasers emit at a well defined wavelength that can be tuned over a narrow range. Each device has different optical characteristics. To get the spectrum and output power of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number. If you need a wavelength that is not listed below, please request it by contacting Tech Support.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • Please note that the absolute maximum current is determined on a device-by-device basis. It is listed on the device's data sheet. To view, click "Choose Item" below, then click on the Docs Icon next to the serial number.
  • Single-Frequency Laser (Single Longitudinal Mode)
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQD6500CM1 Support Documentation
QD6500CM1DFB QCL, 6.00 - 7.00 µm CWL, 2 cm-1 Tuning, 40 mW, Two-Tab C-Mount
$6,660.80
Today

7.00 - 8.00 µm Center Wavelength DFB QCLs

Item # Info Center Wavelengtha Tuning Range (Typ.) Powerb Max Operating
Currentb
Package Wavelength Tested Spatial Mode
QD7500CM1c info Varies from 7.00 to 8.00 µm
(1429 to 1250 cm-1)
1.5 cm-1 40 mW (Typ.) 600 mAd Two-Tab C-Mount Yes Single Frequencye
QD7500DM1c info Varies from 7.00 to 8.00 µm
(1429 to 1250 cm-1)
1.5 cm-1 100 mW (Typ.) 600 mAd D-Mountf Yes Single Frequencye
QD7950CM1 info Varies from 7.90 to 8.00 µm
(1266 to 1250 cm-1)
3 cm-1 100 mW (Typ.) 1000 mA Two-Tab C-Mount Yes Single Frequencye
  • These lasers emit at a well defined wavelength that can be tuned over a narrow range. Each device has different optical characteristics. To get the spectrum and output power of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number. If you need a wavelength that is not listed below, please request it by contacting Tech Support.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • If broadband emission is preferred, please consider the 7.70 µm Fabry-Perot Lasers sold below.
  • Please note that the absolute maximum current is determined on a device-by-device basis. It is listed on the device's data sheet. To view, click "Choose Item" below, then click on the Docs Icon next to the serial number.
  • Single-Frequency Laser (Single Longitudinal Mode)
  • Additional information on the D-mount package is available at its full web presentation.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQD7500CM1 Support Documentation
QD7500CM1DFB QCL, 7.00 - 8.00 µm CWL, 1.5 cm-1 Tuning, 40 mW, Two-Tab C-Mount
$6,660.80
Today
Choose ItemQD7500DM1 Support Documentation
QD7500DM1DFB QCL, 7.00 - 8.00 µm CWL, 1.5 cm-1 Tuning, 100 mW, D-Mount
$6,660.80
Today
Choose ItemQD7950CM1 Support Documentation
QD7950CM1Customer Inspired! DFB QCL, 7.90 - 8.00 µm CWL, 3 cm-1 Tuning, 100 mW, Two-Tab C-Mount
$6,660.80
Today

7.20 - 7.70 µm Center Wavelength Fabry-Perot QCLs

Item # Info Center Wavelengtha Powerb Typical/Max Operating Currentb Package Wavelength Tested Spatial Mode
QF7200CM1c info 7.20 µm (1389 cm-1) 250 mW 1300 mA / 1500 mA Two-Tab C-Mount Yes Single Mode
QF7700CM1c info 7.70 µm (1299 cm-1) 250 mW 1100 mA / 1300 mA Two-Tab C-Mount Yes Single Mode
  • Fabry-Perot Lasers exhibit broadband emission. The center wavelength is defined as a weighted average over all the modes. Each device has a unique spectrum. To get the spectrum of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number of the device. If you need spectral characteristics different than those shown below, please contact Tech Support to request a custom laser.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • If emission at a single wavelength is preferred, please consider the 7.00 - 8.00 µm Distributed Feedback Lasers sold above.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQF7200CM1 Support Documentation
QF7200CM1Fabry-Perot Quantum Cascade Laser, 7.20 µm CWL, 250 mW, Two-Tab C-Mount
$5,156.34
Today
Choose ItemQF7700CM1 Support Documentation
QF7700CM1Fabry-Perot Quantum Cascade Laser, 7.70 µm CWL, 250 mW, Two-Tab C-Mount
$5,156.34
Today

8.00 - 9.00 µm Center Wavelength DFB QCLs

Item # Info Center Wavelengtha Tuning
Range (Typ.)
Powerb Max Operating
Currentb
Package Wavelength
Tested
Spatial Mode
QD8050CM1 info Varies from 8.00 to 8.10 µm
(1250 to 1235 cm-1)
2.5 cm-1 100 mW (Typ.) 1000 mA Two-Tab C-Mount Yes Single Frequencyc
QD8500CM1 info Varies from 8.00 to 9.00 µm
(1250 to 1111 cm-1)
2.5 cm-1 100 mW (Typ.) 900 mAd Two-Tab C-Mount Yes Single Frequencyc
QD8500HHLH info Varies from 8.00 to 9.00 µm
(1250 to 1111 cm-1)
2.5 cm-1 100 mW (Typ.) 600 mAd High Heat Load with
Horizontal Emissione
Yes Single Frequencyc
QD8650CM1 info Varies from 8.60 to 8.70 µm
(1163 to 1149 cm-1)
2.5 cm-1 50 mW (Typ.) 900 mA Two-Tab C-Mount Yes Single Frequencyc
  • Distributed Feedback Lasers emit at a well defined wavelength that can be tuned over a narrow range. Each device has different optical characteristics. To get the spectrum and output power of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number. If you need a wavelength that is not listed below, please request it by contacting Tech Support.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • Single-Frequency Laser (Single Longitudinal Mode)
  • Please note that the absolute maximum current is determined on a device-by-device basis. It is listed on the device's data sheet. To view, click "Choose Item" below, then click on the Docs Icon next to the serial number.
  • Additional information on the high heat load package with horizontal emission is available at its full web presentation. Please note that third-party cables for high heat load packages are typically not rated for the 4.5 A maximum current of the internal thermoelectric cooler. 
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQD8050CM1 Support Documentation
QD8050CM1Customer Inspired! DFB QCL, 8.00 - 8.10 µm CWL, 2.5 cm-1 Tuning, 100 mW, Two-Tab C-Mount
$6,660.80
Today
Choose ItemQD8500CM1 Support Documentation
QD8500CM1DFB QCL, 8.00 - 9.00 µm CWL, 2.5 cm-1 Tuning, 100 mW, Two-Tab C-Mount
$6,660.80
Today
Choose ItemQD8500HHLH Support Documentation
QD8500HHLHDFB QCL, 8.00 - 9.00 µm CWL, 2.5 cm-1 Tuning, 100 mW, Horizontal HHL
$10,211.83
Today
Choose ItemQD8650CM1 Support Documentation
QD8650CM1DFB QCL, 8.60 - 8.70 µm CWL, 2.5 cm-1 Tuning, 50 mW, Two-Tab C-Mount
$6,660.80
5-8 Days

8.35 µm Center Wavelength Fabry-Perot QCL

Item # Info Center Wavelengtha Powerb Typical/Max Operating Currentb Package Wavelength Tested Spatial Mode
QF8350CM1 info 8.35 µm (1198 cm-1) 300 mW 1750 mA / 2000 mA Two-Tab C-Mount Yes Single Mode
  • Fabry-Perot Lasers exhibit broadband emission. The center wavelength is defined as a weighted average over all the modes. Each device has a unique spectrum. To get the spectrum of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number of the device. If you need spectral characteristics different than those shown below, please contact Tech Support to request a custom laser.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQF8350CM1 Support Documentation
QF8350CM1Fabry-Perot Quantum Cascade Laser, 8.35 µm CWL, 300 mW, Two-Tab C-Mount
$5,156.34
Today

9.00 - 10.00 µm Center Wavelength DFB QCLs

Item # Info Center Wavelengtha Tuning
Range (Typ.)
Powerb Max Operating
Currentb
Package Wavelength Tested Spatial Mode
QD9500CM1 info Varies from 9.00 to 10.00 µm
(1111 to 1000 cm-1)
2.5 cm-1 60 mW (Typ.) 800 mAc Two-Tab C-Mount Yes Single Frequencyd
QD9500HHLH info Varies from 9.00 to 10.00 µm
(1111 to 1000 cm-1)
2.5 cm-1 100 mW (Typ.) 600 mAc High Heat Load with
Horizontal Emissione
Yes Single Frequencyd
  • These lasers emit at a well defined wavelength that can be tuned over a narrow range. Each device has different optical characteristics. To get the spectrum and output power of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number. If you need a wavelength that is not listed below, please request it by contacting Tech Support.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • Please note that the absolute maximum current is determined on a device-by-device basis. It is listed on the device's data sheet. To view, click "Choose Item" below, then click on the Docs Icon next to the serial number.
  • Single-Frequency Laser (Single Longitudinal Mode)
  • Additional information on the high heat load package with horizontal emission is available at its full web presentation. Please note that third-party cables for high heat load packages are typically not rated for the 4.5 A maximum current of the internal thermoelectric cooler.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQD9500CM1 Support Documentation
QD9500CM1DFB QCL, 9.00 - 10.00 µm CWL, 2.5 cm-1 Tuning, 60 mW, Two-Tab C-Mount
$6,660.80
Today
Choose ItemQD9500HHLH Support Documentation
QD9500HHLHDFB QCL, 9.00 - 10.00 µm CWL, 2.5 cm-1 Tuning, 100 mW, Horizontal HHL
$10,211.83
Today

9.55 µm Center Wavelength Fabry-Perot QCL

Item # Info Center Wavelengtha Powerb Typical/Max Operating Currentb Package Wavelength Tested Spatial Mode
QF9550CM1c info 9.55 µm (1047 cm-1) 80 mW 1500 mA / 1700 mA Two-Tab C-Mount Yes Single Mode
  • Fabry-Perot Lasers exhibit broadband emission. The center wavelength is defined as a weighted average over all the modes. Each device has a unique spectrum. To get the spectrum of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number of the device. If you need spectral characteristics different than those shown below, please contact Tech Support to request a custom laser.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • If emission at a single wavelength is preferred, please consider the 9.50 - 9.60 µm Distributed Feedback Lasers sold below.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQF9550CM1 Support Documentation
QF9550CM1Fabry-Perot Quantum Cascade Laser, 9.55 µm CWL, 80 mW, Two-Tab C-Mount
$5,156.34
Today

10.00 - 11.00 µm Center Wavelength DFB QCL

Item # Info Center Wavelengtha Tuning
Range (Typ.)
Powerb Max Operating
Currentb
Package Wavelength Tested Spatial Mode
QD10500CM1 info Varies from 10.00 to 11.00 µm
(1000 to 909 cm-1)
2 cm-1 40 mW (Typ.) 600 mAc Two-Tab C-Mount Yes Single Frequencyd
  • These lasers emit at a well defined wavelength that can be tuned over a narrow range. Each device has different optical characteristics. To get the spectrum and output power of a specific, serial-numbered device, click "Choose Item" below, then click on the Docs Icon next to the serial number. If you need a wavelength that is not listed below, please request it by contacting Tech Support.
  • Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • Please note that the absolute maximum current is determined on a device-by-device basis. It is listed on the device's data sheet. To view, click "Choose Item" below, then click on the Docs Icon next to the serial number.
  • Single-Frequency Laser (Single Longitudinal Mode)
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemQD10500CM1 Support Documentation
QD10500CM1DFB QCL, 10.00 - 11.00 µm CWL, 2 cm-1 Tuning, 40 mW, Two-Tab C-Mount
$6,660.80
Today
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Last Edited: Oct 28, 2014 Author: Dan Daranciang