Compact CCD Spectrometers
|Wavelength Range||350 - 700 nm||500 - 1000 nm||200 - 1000 nm|
|FWHM Spectral Resolution||<0.5 nm|
@ 435 nm
@ 633 nm
@ 633 nm
|CCD Sensitivity||160 V / (lx ∙ s)|
|Integration Time||10 μs - 60 s|
- Models for the Visible, NIR, or UV to NIR Spectral Ranges
- Rugged Czerny-Turner Spectrometer Design with No Moving Parts
- Auto Compensation for Dark Current Noise
- Amplitude Corrected and Shipped with Calibration Report
- High-Speed USB Connection Allows up to 200 Scans per Second
- Trigger Input for External Synchronization (TTL)
- 16-Bit A/D-Converter
- 3648 Pixel CCD Line Array
- Includes Multimode Fiber Patch Cable
- Cosine Correctors Available Separately Allow Free-Space Input
- Round-to-Linear Fiber Bundles Optimized for Spectrometer Use Available Separately Below
Thorlabs' fiber-based, compact, Czerny-Turner spectrometers are available in three models. Two are sub-nanometer resolution models that provide detection in the 350 - 700 nm or 500 - 1000 nm range. A third model offers a wide 200 - 1000 nm spectral range with better than 2 nm resolution. With a footprint that measures roughly the size of a portable hard drive (122 mm x 79 mm x 29.5 mm), the performance of these spectrometers is ideal for educational applications or fiber-based systems. Each unit comes amplitude corrected and is shipped with a calibration report.
Although small, the unit shares features with larger, more expensive spectrometers such as the ability to be synchronized via a TTL trigger input (up to 100 Hz) and to automatically compensate for noise created by dark current. The three models share the same design with the CCD chips, gratings, and lenses being optimized for the specified wavelength range.
Each spectrometer ships with a software CD-ROM, an SMB-to-BNC adapter cable for external trigger signals, a 1.5 m high-speed USB cable, and a fiber optic patch cable with SMA905 connectors. The CCS100 and CCS175 include our M14L01 patch cable, which is 1 m long and has a Ø50 µm core, while the CCS200 includes a 1 m long patch cable built with our FG200UCC optical fiber, which has a Ø200 µm core. All units are factory-calibrated by Thorlabs prior to shipment. Recalibration can be easily performed by the user at any point.
Note: A glass window in front of the CCD causes etalon effects which vary from unit to unit. If you require more information to determine if these spectrometers are suitable for your application, please contact technical support.
For ease and stability of mounting, our compact CCD spectrometers are each equipped with two bottom-located taps separated by 1" (25.4 mm). The imperial versions feature 1/4"-20 taps, while the metric versions are equipped with M6 taps.
Software Package for the CCD Spectrometers
The spectrometer comes with a software package that has a graphical user interface (GUI) and an extensive set of drivers (C/C++, LabWindows/CVI, Dot NET, NI LabVIEWa, and Visual Basic). The GUI can display the spectra, background, and peaks in a single window if desired. Additionally, diverse algorithms can be applied for smoothing, averaging, or calculating absorption and transmission. The measurement results can be compared with other stored profiles. The included drivers allow for complete functional control of the Czerny-Turner Spectrometers featured here, allowing the user to design his or her own interface software or to integrate the unit with a test and measurement setup for automated testing. Please see the User Interface tab for more details. The link to download the software can be found on the Software tab. This software package is also designed to operate our optical spectrum analyzers.
Thorlabs cosine correctors (available below) are designed to mate with either an SMA connectorized fiber or the input port of a CCS spectrometer. They feature Spectralon® diffusers at the input apertures and allow the CCS spectrometers to be used for free-space measurements.
In addition to the SMA to SMA cable included with each spectrometer (detailed above), Thorlabs offers linear-to-round fiber bundles, which are sold below. These bundles are optimized for use with spectrometers and have a linear fiber array on the spectrometer side of the cable, which matches the geometry of the spectrometer slit. This provides higher signal levels in the spectrometer. Please note that while these bundles increase signal strength, a single small-core fiber should be used to maintain full spectral precision of the high-resolution spectrometers.
Thorlabs also offers a large selection of alternative fiber optic patch cables and bundles that may be purchased separately. For example, the M16L01 is an SMA-to-FC/PC-connectorized cable that contains the same fiber as the M14L01 patch cable included with our CCS100 and CCS175 spectrometers. Our reflection probe fiber bundles are a single-cable solution that connects to the spectrometer, light source, and sample for reflection spectroscopy applications (see the Application tab for details). We also offer custom patch cables, which can be ordered here.
|Wavelength Range||350 - 700 nm||500 - 1000 nm||200 - 1000 nm|
|Spectral Resolution||<0.5 nm FWHM @ 435 nm||<0.6 nm FWHM @ 633 nm||<2 nm FWHM @ 633 nm|
|Slit (W x H)||20 µm x 2 mma|
|Grating||1200 Lines/mm, 500 nm Blaze||830 Lines/mm, 800 nm Blaze||600 Lines/mm, 800 nm Blaze|
|Fiber Connector||SMA 905|
|Detector Range (CCD Chip)||350 - 1100 nm||200 - 1100 nm|
|CCD Pixel Size||8 µm x 200 µm (8 µm pitch)|
|CCD Sensitivity||160 V / (lx · s)|
|CCD Dynamic Rangeb||300|
|CCD Pixel Number||3648|
|Resolution||10 px/nm||6 px/nm||4 px/nm|
|Integration Time||10 µs - 60 s|
|Scan Rate Internal Trigger||Max 200 Scans/sc|
|S/N Ratiod||≤2000 : 1|
|Trigger Signal||TTL, Rising Edge|
|Trigger Input Impedance||50 Ω|
|Trigger Frequency, Scan Rate||Max 100 Hz, 100 Scans/sb|
|Trigger Pulse Length||Min 0.5 µs|
|Trigger Delay||8.125 µs ±125 ns|
|Interface||Hi-Speed USB 2.0 (480 Mbit/s)|
|Dimensions (L x W x H)||122 mm x 79 mm x 29.5 mm|
|Included Patch Cable|
|Patch Cable Item #||M14L01e||N/Af|
|Fiber Item #||FG050LGA||FG200UCC|
|Core Diameter||50 µm ± 2%||200 ± 8 µm|
|Cladding Diameter||125 ± 1 µm||240 ± 5 µm|
|Coating Diameter||250 µm ± 5%||260 ± 6 µm|
|NA||0.22 ± 0.02||0.22 ± 0.02|
|Wavelength Range||400 to 2400 nm||190 to 1200 nm|
Click to Enlarge
BFL200HS02 Ø200 µm core, seven fiber bundle behind the entrance slit of a CCS100 spectrometer. The outer ~2 fibers of the bundle are truncated by the Ø1.2 mm aperture.
Slit Dimensions Note
Our CCD spectrometers have a mechanical entrance slit dimension of 20 µm x 2 mm. However, there is a Ø1.2 mm mechanical aperture built into the SMA fiber bulkhead and adjacent to the slit, which limits the effective slit dimension to 20 µm x 1.2 mm.
Graphical User Interface
- Operates up to 10 Devices Simultaneously
- Auto-Detection of Compatible Devices
- Available Filters: Peak Finder, Smoothing, Averaging, Flip/Revert Picture
- Algorithms: Gaussian Transformation, Absorbance, Transmittance and Relative Difference Measurement
- Normalized Y Axis
- Persistence Option
- User Wavelength Calibration
- Different Thread for Data Acquisition for Better Responsiveness to User Input
- User Selectable Colors and Shapes
- Saving and Retrieval of Scans (JCAMP-DX or CSV)
- Copy Function to Clipboard
- Printable Windows
- Tabbed or Floating Windows
- Polynomial or Gaussian Data Fitting
- Integration Time
- Trigger Modes: Internal, External, Continuous, Single Shot
- Averaging Method: Gliding or Block Average
- Smoothing Method: Block Smoothing
- Picture Flip and Revert
- Display Mode: nm or pixel
The CCS Series Spectrometers feature the easy-to-use OSA software with a graphical user interface. The package is designed for laboratory and manufacturing applications. The data, background, and peaks can be shown in a single graph. With the help of smoothing and averaging algorithms the user is able to enhance specific features of the spectra. Furthermore the software is able to handle several devices at one time which are presented in a single graph.
The above screenshot shows the Peak Track analysis mode, which allows the position, amplitude, and width of peaks in the spectrum to be tracked over time. As long as track peak mode is active, the track peak analysis area will be displayed below the graph. A table with information on each peak is to the lower right while the lower left of the screen contains a small toolbox used to set the criteria for identifying the peaks.
Additionally, Thorlabs provides drivers for C/C++, LabWindows/CVI, Dot NET, NI LabVIEW, and Visual Basic for more specific demands. The software package supports NI LabVIEW from version 8.5 onwards. For earlier versions the code can be converted. Please contact email@example.com for details.
The software allows stored data to be loaded for comparison. This data can be used to calculate and show the absorbance, transmittance or relative difference view.
Color Analysis Screen
TTL, Max 100 Hz
USB Type Mini-B
USB Type Mini-B to Type A Cable Included
Software for Spectrometers and Optical Spectrum Analyzers
This package also includes the instrument drivers for the National Instruments™, LabWindows™/CVI, and LabVIEW™* development environments. The drivers are intended for developers who want to extend or adapt the functionality of the device to their special requirements. Please note that this software package is not compatible with Windows XP; for more information about using a spectrometer with Windows XP, please contact tech support.
Standard full software application packages and graphical user interfaces.
|x|| || ||Compact Spectrometer for 350 - 700 nm|
| ||x|| ||Compact Spectrometer for 500 - 1000 nm|
| || ||x||Compact Spectrometer with Extended Range for 200 - 1100 nm|
|x||x|| ||SMA MM Fiber Patch Cable, Low OH, NA 0.22, 50 µm Core, 1 m|
| || ||x||SMA MM Fiber Patch Cable, High OH, NA 0.22, 200 µm Core, 1 m|
|x||x||x||SMB to BNC Adapter Cable|
|x||x||x||USB 2.0 Cable A to Mini B, 1.5 m|
|x||x||x||Distribution CD with Software|
Reflection Spectroscopy Application
These CCD spectrometers can be used along with our broadband fiber-coupled light sources, fiber optic reflection probes, and fiber probe holders to take diffuse reflection, spectral reflection, and color measurements.
Thorlabs offers several CCD-based spectrometers for use in the visible, NIR, or UV to NIR spectral ranges. The CCS100 and CCS175 operate in the 350 - 700 nm and 500 - 1000 nm spectral ranges with 0.5 nm and 0.6 nm resolution, respectively. The extended-range CCS200 operates in the 200 - 1000 nm spectral range with 2.0 nm resolution.
The SLS201 tungsten-halogen broadband fiber-coupled light source, shown above, delivers a 2796 K blackbody-type spectrum in the 300 - 2600 nm wavelength range and has active electronic stabilization for low spectral and intensity drift. Alternatively, the SLS202 light source delivers similar performance with a 1900 K color temperature and 450 - 5500 nm emission range. We also offer fiber-coupled LEDs available with a selection of peak wavelengths or a broadband white-light emission spectra.
Alternatively, if the reflection probe is not used for illumination, Thorlabs offers a wide range of broadband and single wavelength light sources that are free-space or operate with a single fiber cable output. Our free-space and liguid light guide-coupled plasma light sources offer extremely intense illumination with a blackbody-type emission spectrum. Our line of fiber-coupled laser sources offers a selection of options for intense single-wavelength illumination.
Reflection Probe Fiber Bundles
Thorlabs offers reflection probes with either High-OH or Low-OH multimode fiber. Our RP20 high-OH bundles are suitable for wavelengths from 250 - 1200 nm, while our RP21 low-OH bundles are suitable for wavelengths from 400 - 2400 nm. Additionally, if the coaxial illumination provided by a reflection probe bundle is not critical, separate fiber patch cables or bundles can be used for illumination and signal collection. Our round-to-linear fiber bundles, for example, maximize signal strength at the spectrometer, while our large-core round bundles maximize illumination intensity. Our single-fiber multimode SMA patch cables are useful for precise illumination, or for connection to a fiber-coupled laser.
Reflection Probe Holders
Thorlabs offers the RPS-SMA fiber probe stand, shown above, which allows precise, stable positioning of the fiber optic probe at an angle of 90° or 45° relative to the sample. The RPA-SMA probe holder arm (also sold separately) can also be integrated into other optomechanical setups using Ø1/2" posts. Alternatively, the RPH-SMA probe holder block sits directly on a sample, allowing the fiber tip to be positioned close to the surface and also blocking out room lights from the area under test.
Linear Fiber Bundles vs. Single-Fiber Patch Cables
Entrance Slit Throughput Comparison
Our linear fiber bundles (sold below) can be used in place of the single-fiber patch cables included with these spectrometers to provide a significant increase in signal strength. The images below show how light exiting a linear fiber bundle more closely matches the geometry of the spectrometer's entrance slit than that from a standard patch cable. The accompanying graphs show comparison spectra of a SLS201 broadband light source measured with a CCS100 spectrometer when using a linear bundle versus a standard patch cable. As shown in the graphs below, the Ø105 µm core linear bundles provide a maximum power increase of ~500% versus a comparable single-fiber cable, while the Ø200 µm core linear bundles provide a maximum power increase of ~300%.
Ø105 µm Core Cable Comparison
Left: Light exiting the end face of a BFL105HS02 linear bundle placed behind the 20 µm x 2 mm entrance slit of the CCS100 spectrometer.
Right: Light exiting the end face of an M15L01 fiber patch cable placed behind the 20 µm x 2 mm entrance slit of the CCS100 spectrometer.
Click to Enlarge
Comparison of the spectra of an SLS201
broadband light source obtained with a CCS100 spectrometer when using the BFL105HS02
linear fiber bundle versus an M15L01
single-fiber patch cable. The linear bundle provides a ~500% maximum increase in signal strength.
Ø200 µm Core Cable Comparison
Left: Light exiting the end face of a BFL200HS02 linear bundle placed behind the 20 µm x 2 mm entrance slit of the CCS100 spectrometer. Note: The outer ~2 fibers of the bundle are truncated by an internal Ø1.2 mm aperture adjacent to the slit in the spectrometer (see the Specs tab for details).
Right: Light exiting the end face of an M25L01 fiber patch cable placed behind the 20 µm x 2 mm entrance slit of the CCS100 spectrometer.
Click to Enlarge
Comparison of the spectra of an SLS201
broadband light source obtained with a CCS100 spectrometer when using the BFL200HS02
linear fiber bundle versus an M25L01
single-fiber patch cable. The linear bundle provides a ~300% maximum increase in signal strength.