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GREEN-Wave Spectrometer
The StellarNet GREEN-Wave is a compact low-cost spectrometer designed for teaching, educational labs and portable measurements across the 350-1150 nm range. Its 16-bit high-speed digitizer enables fast acquisition with a typical 400:1 signal-to-noise ratio.
The family includes multiple models with different gratings and slit widths, SMA 905 fiber optic input, USB power and onboard memory with preset calibrations.
StellarNet GREEN-Wave miniature spectrometers are fiber-optically coupled instruments built as an affordable platform for teaching, educational laboratories and portable UV-VIS to near-NIR spectroscopy.
The series supports measurements across 350-1150 nm and offers 8 standard models with multiple wavelength ranges, gratings and slit-dependent resolutions. Updated electronics with a high-speed 16-bit digitizer provide fast acquisition and a typical 400:1 signal-to-noise ratio.
The compact 1 x 3 x 5 inch enclosure improves portability and low-power operation for laptops and tablets. The spectrometer is USB 2.0 powered and accepts signal input through a single-fiber cable or probe assembly using a standard SMA 905 connector.
The modular optics have no moving parts and are protected in a rugged metal enclosure suitable for repeated use in undergraduate environments. Up to 8 units can also be daisy chained and operated simultaneously.
Onboard memory stores preset calibrations, spectrometer settings and a snapshot spectrum from the sensitive 2048-element CCD detector. Typical applications include emission monitoring, tunable laser or LED characterization, elemental plasma emissions or LIBS, colorimetry and optical metrology.
Free SpectraWiz software is included for real-time spectroscopy, spectroradiometry, spectrocolorimetry, concentration analysis and UV monitoring workflows.
Main technical specifications
| Type | Fiber-optically coupled miniature spectrometer |
| Series spectral range | 350-1150 nm |
| Standard models | VIS, VIS2, NIR, NIR2, NIR2b, NIR3, NIR3b, NIR4, NIR4b |
| Digitizer | High-speed 16-bit |
| Signal-to-noise ratio | Typical 400:1 |
| Detector | 2048-element CCD with snapshot memory |
| Optical input | Standard SMA 905 connector for fiber cable or probe assembly |
| Power | USB 2.0 |
| Dimensions | 1 x 3 x 5 inches |
| Architecture | Modular design with no moving parts, rugged metal enclosure |
| Multi-unit operation | Daisy chain up to 8 units |
Models and predicted slit resolutions:
| Model | Range (nm) | Grating (g/mm) | 200 um | 100 um | 50 um | 25 um | 14 um |
| VIS | 350-1150 | 600 | 6.0 | 3.2 | 1.6 | 1.00 | 0.80 |
| VIS2 | 380-780 | 1200 | 3.0 | 1.6 | 0.8 | 0.50 | 0.40 |
| NIR | 500-1150 | 600 | 6.0 | 3.2 | 1.6 | 1.00 | 0.80 |
| NIR2 | 600-1000 | 1200 | 3.0 | 1.6 | 0.8 | 0.50 | 0.40 |
| NIR2b | 785-1150 | 1200 | 3.0 | 1.6 | 0.8 | 0.50 | 0.40 |
| NIR3 | 550-810 | 1800 | 2.2 | 1.2 | 0.6 | 0.35 | 0.28 |
| NIR3b | 680-935 | 1800 | 2.2 | 1.2 | 0.6 | 0.35 | 0.28 |
| NIR4 | 500-700 | 2400 | 1.5 | 0.8 | 0.4 | 0.25 | 0.20 |
| NIR4b | 600-800 | 2400 | 1.5 | 0.8 | 0.4 | 0.25 | 0.20 |
Included software: free SpectraWiz for real-time spectroscopy, spectroradiometry, spectrocolorimetry, ChemWiz and UV monitor workflows.