S150 Duo: Compact Two-Channel Spectrum Analyzer
The S150 Duo spectrometer from SOL instruments is designed for spectral analysis of electromagnetic radiation, for precise wavelength measurements of lasers (including diode and tunable lasers) used in spectral instruments, and LiDAR. The S150 Duo is the best in its class of instruments. It delivers the accuracy and reproducibility when measuring wavelengths, shapes and widths of spectral lines. S150 Duo achieves both high spectral resolution (less than 9 pm) and wavelength accuracy of 1 pm. This all provides almost 100% reproducibility of the measurement results.
The S150 Duo spectrometer is a small device without moving elements. High-precision calibration along with long-term stability of the spectrometer are necessary for precise wavelength control. Calibration and wavelength measurement must be carried out under the same conditions to avoid temperature effects. However, the conditions in which wavelength calibration were performed may differ from the conditions in which the instrument is currently used. Therefore, there is a possibility of spectral auto-calibration in the S150 Duo, which can be performed by the user at any time. This achieves reproducibility of measurements results for the entire lifetime of the instrument.
Echelle spectrometers can provide high-precision (up to 10 pm) wavelength measurements. The S150 Duo spectrometer with a new non-linear calibration sets higher limits for the accuracy of the wavelength measurement (from 5 pm to 1 pm, depending on the spectrum order) over a wide spectral range of 200–1100 nm.
The S150 Duo spectrometer is reliable, compact, portable and easy to operate. The supplied SpectraSP-L software provides collection, visualization, and analysis functions. The user interface with is highly intuitive.
Functionality of the Two Channels
The S150 Duo spectrometer is a two-channel instrument. S150 Duo can be successfully used in photometry, when equipped with two identical gratings in each channel. The use of gratings with different groove density in each channel makes it possible to choose the registration bandwidth and spectral resolution. The diffraction gratings in both channels can be accurately rotated using the adjusting screws. This enables you to set the required spectral ranges on the detectors.
In each channel of the spectrometer, linear multi-element detectors are installed. Both detectors are able to acquire spectra simultaneously. Each channel provides a 30-mm focal plane width. The input slits have a fixed size (the standard width is 25 μm). The input slit widths can be modified on customer request within the range of 15–40 μm.
Illumination of the spectrometer entrance slits is carried out by the use of a two-channel optical fiber (one input and two outputs) or two single-channel optical fibers. The lighting can be performed directly without optical fibers. In most cases, it is convenient to use one two-channel optical fiber, because often both channels complement each other and solve the same task. An example is the spectral characteristics measurement of laser lines. In one of the S150 Duo channels, an Echelle grating can be installed for this purpose. The user can mark with a marker the spectral line that is observed in the spectrometer channel where a conventional grating is located, and the software automatically finds the given line in another channel where there is a high-precision (Echelle) grating.
Summary of Features, Advantages, Applications
The Features and advantages of S150 Duo include:
- High spectral resolution (up to 9 pm)
- Measurement of shape and width of the spectral line
- High accuracy of wavelength determination (up to 1 pm)
- Small size
- Long-term stability
- Automatic wavelength calibration.
- Ability to accurately rotate the diffraction grating, followed by recalibration along the wavelength
- High accuracy and reproducibility of measurement results for the entire instrument lifetime
- Easy-to-use software, ability to solve non-standard tasks
Some applications for S150 Duo are:
- Wavelength measurement of tunable lasers, analysis of the shape and width of the laser line
- Photometric measurements using S150 Duo as a two-channel spectrophotometer
- Measurement of fluorescent, Raman, and atomic-emission spectra
About SOL instruments
SOL instruments is an innovation-focused producer of technologically advanced instruments for the measurement of light, elemental analysis, and nano-scale microscopy. SOL instruments is a reliable manufacturer and supplier of high quality, dependable instruments, as well as specialized software packages for research and industry.
The company comprises four business segments:
For more information or a quotation for SOL instruments products, contact IL Photonics.