Product: Additional Diffraction Gratings

Overstock diffraction gratings have the same great optical performance and diffraction efficiency as our other products however are offered at reduced prices due to relaxed surface quality specifications or non-standard sizes. This is a great option if minor surface imperfections (that mostly affect scattered light and not the optical efficiency) are acceptable.


  • Ultra-high efficiency for a single polarization
  • Robust dielectric materials, no polymers are used
  • Each grating is a master; ultra-low scatter
  • Highly competitive pricing


  • Optical telecommunications (laser sources, polarization diversity systems)
  • High power lasers
  • Tunable lasers
  • Spectroscopy and remote sensing

Available overstock transmission gratings

Questions? Contact us at +1-541-431-0026 or