概述
Dimension-Labs offers a series of fiber spectrometers covering the spectral range of 190-2500nm, including ultraviolet, visible light and near-infrared wavelengths. There are six series of spectrometers, namely general-purpose, high resolution, high sensitivity, refrigeration, deep refrigeration and near-infrared (see the table below for more details). Its performance parameter series covers teaching, industrial and scientific research levels, and is suitable for different application environments such as laboratories, scientific research and industrial sites.
The spectrometer can perform high-precision spectral analysis of the structure and components of matter. Use dispersion principle, diffraction principle, or optical modulation principle to decompose optical radiation at different frequencies according to certain rules to form a spectrum. Combined with a series of optical, precision mechanical, electronic and computer systems, we can achieve the purpose of precise measurement and research on the frequency and intensity of optical radiation. The small fiber spectrometer adopts folding optical path, fiber conduction, array detector and other technologies. It is small in size, fast in detection and easy to use, and is very suitable for online, in-situ, portable and other applications.
| Series | General Purpose | High Resolution | High Sensitivity | Refrigeration | Deep Refrigeration | Near-infrared |
| Wavelength range（nm） | 190-1100 | 200-1000 | 200-1050 | 200-1050 | 250-1050 | 900-2500 |
| Detector type | linear array CMOS | linear array CMOS | Back illuminated area array CCD | Refrigerated back illuminated linear array CCD | Deep cooling back illuminated area array CCD | InGaAs/Refrigerated InGaAs |
| Pixel | 2048×1 | 2048×1/4096×1 | 2048×64 | 2048×1 | 1024×58 | 512×1 |
| SNR | 380:1 | 600：1 | 550：1 | 800：1 | 1000：1 | 2000：1 |
| Integral Time | 50 μs-65 s | 50 μs-65 s | 50 μs-65 s | 8 ms - 300 s | 8 ms - 30 min | 100 μs-5 min |
component
The main components of a fiber optic spectrometer include slits, gratings, and detectors (as shown in Figures 2, 4, and 6). The performance of a spectrometer depends on the selection, precise combination, and calibration of these components.
- SMA905 fiber optic interface: The signal beam is transmitted through a standard fiber optic cable, coupled through the fiber optic interface, and enters the spectrometer
- Incident slit: Before entering the spectrometer, the signal beam must pass through the incident slit, and only an appropriate amount of light signal is allowed to enter the spectrometer. The size of the incident slit will affect the resolution and sensitivity parameters of the spectrometer.
- Collimator element: turns the light emitted by the slit into parallel light.
- Grating: disperses optical signals into multiple beams of light according to wavelength in space. Grating divides incident light and is the core component that affects the main performance of the spectrometer, determining the spectral range and resolution of the spectrometer.
- Focusing element: Focus the well split light beam onto the photosensitive area of the detector.
- Detector array: converts the light signals collected in the photosensitive area into electrical signals and sends them to the processing system for processing. There are two types of detectors for fiber optic spectrometers: wired array and surface array.
Main Applications
- Transmission, reflection, and laser center wavelength measurement
- Light color measurement
- Radiometric measurement
- Water quality and smoke detection
- laser-induced fluorescence
- Semiconductor/Plastic Manufacturing - Film Thickness Measurement
Universal fiber optic spectrometer
● Cross type C-T optical path design, high-sensitivity linear array CMOS image sensor, imported high-quality grating ● 190-1100nm full spectrum, customized spectral range ● High signal-to-noise ratio, low stray light, elimination of high-order diffraction ● Small size, high performance, SMA905 fiber optic input ● USB powered, no need for external power supply Suitable for building various commonly used spectral measurement systems, such as reflection/transmission/absorption spectroscopy measurement, laser wavelength detection, LED sorting, chromaticity detection, chemical process analysis, etc.
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High resolution fiber optic spectrometer
● Long focus imaging design, high-sensitivity linear array CMOS image sensor, high line to plane blazed grating ● 200-1100nm full spectrum, customized spectral range ● High signal-to-noise ratio, low stray light, elimination of high-order diffraction ● Small size, high performance, SMA905 fiber optic input Suitable for various scenarios such as laser measurement, plasma emission spectroscopy measurement, color measurement, absorbance measurement, etc.
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High sensitivity fiber optic spectrometer
● High sensitivity back illuminated CCD, deep ultraviolet quantization efficiency up to 70% ● Array CCD with 2048 × 64 pixels ● High speed processing chips and algorithms to achieve millisecond level high-speed spectral detection ● Small size, high performance, SMA905 fiber optic input Suitable for fields that require weak light spectrum detection and ultraviolet spectrum analysis, such as scientific research, fluorescence spectrum analysis, absorption spectrum analysis, deep ultraviolet spectrum analysis, etc., it is a research grade high-sensitivity fiber optic spectrometer.
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Ultra high speed fiber optic spectrometer
●The detection speed can reach 2000 frames per second, suitable for high-frequency data acquisition ●The shortest integration time is as low as 6us ●GIGE, USB, HDMI and other interfaces are compatible and flexible for expansion ●Scattered light<0.1%, significantly improving spectral accuracy
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Refrigerated fiber optic spectrometer
● Refrigeration type, back illuminated CCD image sensor, imported high-quality grating ● High signal-to-noise ratio, low stray light, elimination of high-order diffraction ● 200-1050nm full spectrum, customized spectral range ● Good stability and spectral repeatability ● Small size, high performance, SMA905 fiber optic input Suitable for fields such as scientific research, laser measurement, plasma emission spectroscopy, fluorescence spectroscopy analysis, color measurement, absorbance measurement, and Raman measurement
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Deep cooling fiber optic spectrometer
● -25 ° C deep cooling CCD with excellent temperature stability ● Low readout noise, high signal-to-noise ratio, high sensitivity ● Array CCD with a pixel count of 1024 × 58 ● 200-1050nm full spectrum, customized spectral range ● Small size, high performance, SMA905 fiber optic input Suitable for fields requiring extremely weak light spectrum detection and ultraviolet spectrum analysis, such as fluorescence spectrum analysis, Raman spectrum analysis, absorption spectrum analysis, deep ultraviolet spectrum analysis, microscopic spectrum analysis, etc.
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Near infrared fiber spectrometer
● Three wideband optional configurations: 900-1700 nanometers, 900-2200 nanometers, and 900-2500 nanometers ● High speed linear InGaAs CCD detector ● High sensitivity, low detection limit ● -20 ° C thermoelectric cooling, low dark noise ● Excellent spectral stability and reproducibility Suitable for the field of near-infrared spectroscopy detection: gas detection, biological detection, chemical analysis, film thickness analysis, it is a research grade high-performance fiber spectrometer.
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