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1040 nm Femtosecond Fiber Lasers


  • Menlo Systems' figure 9® Technology
  • Highly Stable and Easy to Use
  • High Power (>10 W) Version Available
  • Pulse Widths of <200 fs

ORANGE

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Optional Packages

  • CHIRPED PULSES
    Picosecond Pulses for Seeding Applications
  • SYNC100 Repetition Rate Synchronization
    Allows for 330 kHz Cavity Length Tuning (Full Range), Integrated Stepper Motor and Piezo Setup Included
  • RRE-SYNCRO Repetition Rate Stabilization Electronics
    Feedback Electronics to Phase Lock Pulses to an External Clock
  • VARIO User-Defined Repetition Rate
    Factory-Set Value Selectable in the 50-250 MHz Range
  • MULTIBRANCH Additional Seed Ports
    Seeding of Multiple Amplifiers with Optional Subsequent Frequency Conversion to Cover Multiple Wavelengths
  • SHG 520 Second Harmonic Generation Module
    Frequency Doubling to 520 nm

Applications

  • Amplifier Seeding
  • THz Generation and THz Physics
  • 2-Photon Polymerization and 3D Printing
  • Ultrafast Spectroscopy
  • Multiphoton Excitation
  • OPO/OPA Seeding

Features

  • Output Power Options from 100 mW to >10 W
  • High Stability
  • Low Amplitude and Phase Noise
  • All-PM Fiber Solution
  • Repetition Rate: 50 - 250 MHz
  • Single Mode-Lock State
  • Menlo Systems' figure 9® Technology
  • Laser Output in Less Than 60 Seconds
  • 520 nm Second Harmonic Generation Module Available

Menlo Systems’ femtosecond Yb fiber-based laser sources offer up to >10 W average power with pulse durations of <200 fs. Based on their unique figure 9® design, the lasers offer reproducible and long-term stable operation. Both the oscillator and the amplifier use only polarization-maintaining (PM) fiber components, ensuring excellent stability and low-noise operation. The optional SHG 520 second harmonic generator is a highly efficient module for frequency doubling to 520 nm with the ORANGE-HIGH-POWER model. The laser is maintenance free, user installed, and ready to use at the press of a single button. Customize your laser with the available options listed to the right based on the requirements of your application.

Simon Kocur
Simon Kocur
Menlo Systems
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Please note that these femtosecond fiber lasers are available directly from Menlo Systems, Inc. within the United States and from Menlo Systems GmbH outside the United States.
United States
Phone: +1-973-300-4490
Email: ussales@menlosystems.com
Outside United States
Phone: +49-89-189166-0
Email: sales@menlosystems.com
Item # ORANGE ORANGE-HIGH-POWER ORANGE-HIGH-POWER-10
Wavelength 1040 nm ± 10 nm
Average Output Power >100 mW >1 W >10 W
Pulse Energy >1 nJ >10 nJ >100 nJ
Pulse Widtha <150 fs <150 fs <200 fs
Repetition Rate 100 MHz (50 - 250 MHz with VARIO)b
Repetition Rate Stability <1 ppm Over 90 Hours at Constant Temperature
Output Port Free Space
Auxiliary Output Port Optional
Additional Fiber-Coupled Seed Port 1 (Up to 4 with MULTIBRANCH)
Polarization Linear, P-Polarized
Beam Height 95 mm
Second Harmonic Module - SHG 520 -
Average Power - >400 mW -
Pulse Width - <150 fs -
Polarization - Linear, P-Polarized -
  • Please inquire with Menlo Systems about chirped output pulses for pulse lengths from 1 to 50 ps.
  • Please inquire with Menlo Systems for your specific combinations of average power, pulse duration and repetition rate.

Laser Safety and Classification

Safe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light. Thorlabs offers a range of laser safety accessories that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina. 

Laser Glasses Laser Curtains Blackout Materials
Enclosure Systems Laser Viewing Cards Alignment Tools
Shutter and Controllers Laser Safety Signs

Safe Practices and Light Safety Accessories

  • Thorlabs recommends the use of safety eyewear whenever working with laser beams with non-negligible powers (i.e., > Class 1) since metallic tools such as screwdrivers can accidentally redirect a beam.
  • Laser goggles designed for specific wavelengths should be clearly available near laser setups to protect the wearer from unintentional laser reflections.
  • Goggles are marked with the wavelength range over which protection is afforded and the minimum optical density within that range.
  • Laser Safety Curtains and Laser Safety Fabric shield other parts of the lab from high energy lasers.
  • Blackout Materials can prevent direct or reflected light from leaving the experimental setup area.
  • Thorlabs' Enclosure Systems can be used to contain optical setups to isolate or minimize laser hazards.
  • A fiber-pigtailed laser should always be turned off before connecting it to or disconnecting it from another fiber, especially when the laser is at power levels above 10 mW.
  • All beams should be terminated at the edge of the table, and laboratory doors should be closed whenever a laser is in use.
  • Do not place laser beams at eye level.
  • Carry out experiments on an optical table such that all laser beams travel horizontally.
  • Remove unnecessary reflective items such as reflective jewelry (e.g., rings, watches, etc.) while working near the beam path.
  • Be aware that lenses and other optical devices may reflect a portion of the incident beam from the front or rear surface.
  • Operate a laser at the minimum power necessary for any operation.
  • If possible, reduce the output power of a laser during alignment procedures.
  • Use beam shutters and filters to reduce the beam power.
  • Post appropriate warning signs or labels near laser setups or rooms.
  • Use a laser sign with a lightbox if operating Class 3R or 4 lasers (i.e., lasers requiring the use of a safety interlock).
  • Do not use Laser Viewing Cards in place of a proper Beam Trap.

 

Laser Classification

Lasers are categorized into different classes according to their ability to cause eye and other damage. The International Electrotechnical Commission (IEC) is a global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1 outlines the safety of laser products. A description of each class of laser is given below:

Class Description Warning Label
1 This class of laser is safe under all conditions of normal use, including use with optical instruments for intrabeam viewing. Lasers in this class do not emit radiation at levels that may cause injury during normal operation, and therefore the maximum permissible exposure (MPE) cannot be exceeded. Class 1 lasers can also include enclosed, high-power lasers where exposure to the radiation is not possible without opening or shutting down the laser.  Class 1
1M Class 1M lasers are safe except when used in conjunction with optical components such as telescopes and microscopes. Lasers belonging to this class emit large-diameter or divergent beams, and the MPE cannot normally be exceeded unless focusing or imaging optics are used to narrow the beam. However, if the beam is refocused, the hazard may be increased and the class may be changed accordingly.  Class 1M
2 Class 2 lasers, which are limited to 1 mW of visible continuous-wave radiation, are safe because the blink reflex will limit the exposure in the eye to 0.25 seconds. This category only applies to visible radiation (400 - 700 nm).  Class 2
2M Because of the blink reflex, this class of laser is classified as safe as long as the beam is not viewed through optical instruments. This laser class also applies to larger-diameter or diverging laser beams.  Class 2M
3R Lasers in this class are considered safe as long as they are handled with restricted beam viewing. The MPE can be exceeded with this class of laser, however, this presents a low risk level to injury. Visible, continuous-wave lasers are limited to 5 mW of output power in this class.  Class 3R
3B Class 3B lasers are hazardous to the eye if exposed directly. However, diffuse reflections are not harmful. Safe handling of devices in this class includes wearing protective eyewear where direct viewing of the laser beam may occur. In addition, laser safety signs lightboxes should be used with lasers that require a safety interlock so that the laser cannot be used without the safety light turning on. Class-3B lasers must be equipped with a key switch and a safety interlock.  Class 3B
4 This class of laser may cause damage to the skin, and also to the eye, even from the viewing of diffuse reflections. These hazards may also apply to indirect or non-specular reflections of the beam, even from apparently matte surfaces. Great care must be taken when handling these lasers. They also represent a fire risk, because they may ignite combustible material. Class 4 lasers must be equipped with a key switch and a safety interlock.  Class 4
All class 2 lasers (and higher) must display, in addition to the corresponding sign above, this triangular warning sign  Warning Symbol

Pulsed Laser Emission: Power and Energy Calculations

Determining whether emission from a pulsed laser is compatible with a device or application can require referencing parameters that are not supplied by the laser's manufacturer. When this is the case, the necessary parameters can typically be calculated from the available information. Calculating peak pulse power, average power, pulse energy, and related parameters can be necessary to achieve desired outcomes including:

  • Protecting biological samples from harm.
  • Measuring the pulsed laser emission without damaging photodetectors and other sensors.
  • Exciting fluorescence and non-linear effects in materials.

Pulsed laser radiation parameters are illustrated in Figure 1 and described in the table. For quick reference, a list of equations are provided below. The document available for download provides this information, as well as an introduction to pulsed laser emission, an overview of relationships among the different parameters, and guidance for applying the calculations. 

 

Equations:

Period and repetition rate are reciprocal:    and 
Pulse energy calculated from average power:       
Average power calculated from pulse energy:        
Peak pulse power estimated from pulse energy:            

Peak power and average power calculated from each other:
  and
Peak power calculated from average power and duty cycle*:
*Duty cycle () is the fraction of time during which there is laser pulse emission.
Pulsed Laser Emission Parameters
Click to Enlarge

Figure 1: Parameters used to describe pulsed laser emission are indicated in the plot (above) and described in the table (below). Pulse energy (E) is the shaded area under the pulse curve. Pulse energy is, equivalently, the area of the diagonally hashed region. 

Parameter Symbol Units Description
Pulse Energy E Joules [J] A measure of one pulse's total emission, which is the only light emitted by the laser over the entire period. The pulse energy equals the shaded area, which is equivalent to the area covered by diagonal hash marks.
Period Δt  Seconds [s]  The amount of time between the start of one pulse and the start of the next.
Average Power Pavg Watts [W] The height on the optical power axis, if the energy emitted by the pulse were uniformly spread over the entire period.
Instantaneous Power P Watts [W] The optical power at a single, specific point in time.
Peak Power Ppeak Watts [W] The maximum instantaneous optical power output by the laser.
Pulse Width Seconds [s] A measure of the time between the beginning and end of the pulse, typically based on the full width half maximum (FWHM) of the pulse shape. Also called pulse duration.
Repetition Rate frep Hertz [Hz] The frequency with which pulses are emitted. Equal to the reciprocal of the period.

Example Calculation:

Is it safe to use a detector with a specified maximum peak optical input power of 75 mW to measure the following pulsed laser emission?

  • Average Power: 1 mW
  • Repetition Rate: 85 MHz
  • Pulse Width: 10 fs

The energy per pulse:

seems low, but the peak pulse power is:

It is not safe to use the detector to measure this pulsed laser emission, since the peak power of the pulses is >5 orders of magnitude higher than the detector's maximum peak optical input power.


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ORANGE Support Documentation
ORANGEFemtosecond Fiber Laser, 1040 nm, >100 mW, 100 MHz
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ORANGE-HIGH-POWER Support Documentation
ORANGE-HIGH-POWERFemtosecond Fiber Laser, 1040 nm, >1 W, 100 MHz
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ORANGE-HIGH-POWER-10 Support Documentation
ORANGE-HIGH-POWER-10Femtosecond Fiber Laser, 1040 nm, >10 W, 100 MHz
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Menlo Lead Time
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