High throughput and robust spectrometer modules for OEM integration

The ROCK NIR spectrometers offer the market’s highest throughput industrial grade spectrometers. These benefits are accomplished by our highly efficient in-house manufactured transmission gratings and a high numerical aperture 0.22 (f/2.2) nearly on-axis beam geometry in the optical bench.

The ROCK NIR spectrometers enable better sensitivity and/or lower optical light input power than traditional spectrometers.

Key features

  • 900 to 1700 nm wavelength ranges
  • Numerical aperture of 0.22
  • Typical resolution of 4 nm (FWHM)
  • Symmetrical peak shapes
  • Athermal optical bench
ROCK Spectrometer

ROCK Spectrometer


  • RSM-420 – ROCK NIR 900-1700 nm spectrometer with 256 pixels, TE-cooled InGaAs detector array
  • RSM-445 – ROCK NIR 900-1700 nm spectrometer with 512 pixels, TE-cooled InGaAs detector array

Download Product Sheets

pdf_icon Product sheet – ROCK-NIR 900-1700nm


Request a quotation here for any of our ROCK spectrometers. If you have special requirements for resolution, detector, or wavelength range just enter those into the “Request quotation” form.