Wasatch Photonics

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WP NIR I Spectrometer

Optimize this high sensitivity, TEC-cooled spectrometer with our build-to-print  resolution and sample coupling options.

  • 900-1700 nm wavelength range
  • Benchtop quality data, “compact” price
  • Up to 30x faster measurements
  • Superior stray light suppression, high SNR
  • Trace-level limit of detection
  • High thermal stability & reproducibility
  • Fiber-coupled & free space models
WP NIR I Spectrometer product sheet


We’ve maximized the efficiency of our spectrometers to give you more sensitivity, better SNR, and faster measurements in a compact footprint. Collect more light with our f/1.3 input, keep more light with our patented high transmission VPH gratings & diffraction-limited optics, and detect more light with scientific-grade detectors. When tested side by side, our spectrometers consistently outperform larger, more expensive units. From sample coupling to detector cooling, we give you more options to get the exact performance you need. Call us to discuss your application!

WP NIR I Spectrometer Features/Benefits:

  • Wavelength range is 900 - 1700 nm
  • f/1.3 high-efficiency optics for highest sensitivity
  • HD Volume Phase Holographic Grating
  • Scientific grade InGaAs array with low noise electronics
  • Extreme low stray light and high transmission
  • Short acquisition time and high SNR spectra
  • TEC cooling option available
  • Bluetooth and Ethernet options available
  • Fiber coupled or free space
  • OEM Solution

Spectrometer may be configured with your choice of slit size and sample coupling (fiber coupled or free space). Custom wavelength range models are available upon request, so call us to discuss your OEM needs!

Download full specifications


  • f/#: 1.3
  • Slit Height: 2 mm
  • Spectral Range: 900 - 1700 nm
  • Resolution, 10 um slit: 2 nm
  • Resolution, 25 um slit: 5 nm
  • Resolution, 50 um slit: 10 nm
  • Fiber Port: SMA 905 (fiber coupled model) ; free space coupled model available
  • Size: 16.5 x 12.7 x 5.1 cm
  • Max Line Rate: 500 Hz

All WP NIR I spectrometers employ a TEC cooled detector for best signal to noise and temperature stability.

  • Detector Type and Model: Hamamatsu G9214-512S InGaAs array
  • Active Pixels: 512
  • Pixel Dimensions: 25 x 500 μm
  • Quantum Efficiency Max: 82% average / 84% peak
  • Integration Period Range: 1 ms - 60 s
  • Signal to Noise: 2400:1
  • Dynamic Range System: 16,666
  • Read Noise: 180 e- RMS
  • Optional Regulated Detector: TEC cooling to -15°C on all units
  • Regulated Detector Temperature Stability: ± 0.1 °C
  • Cooling Controls: ON/OFF/LOCK
  • System Operating Temperature Range: 0°C to 40°C, non-condensing
  • Data Interface: USB 2.0 Type B connector (female), Ethernet and Bluetooth optional