QCL Custom Lenses


With Window

Encircled Energy – Radius from Centroid

Without Window

OPD – Optical Path Difference

Please Contact us with your QCL custom lens request.

As a quick overview, the following information would be helpful:

  • Central Wavelength
  • Spectral Bandwidth
  • f/#
  • N.A.
  • Facet (QCL) Size (in both directions)
  • Beam Divergence (in both directions)
  • Astigmatism (if any)
  • Diffraction Limited (Y/N)
  • Desired Coupling/Collection Efficiency
  • Power/Power Density
  • Coating Specifications
  • Additional Information