Technical guide

OD, CWL and FWHM Guide

A practical guide to optical density, center wavelength and full width half maximum for filter RFQs.

Use this guide to prepare a better RFQ.

A good optical RFQ defines the application, target signal, wavelength band, FWHM, transmission, blocking range, OD, AOI, substrate, dimensions and quantity. Lumalyx turns those fields into an engineering package.

  • Define the light source and detector.
  • Separate excitation and emission windows.
  • Check adjacent channels for crosstalk risk.
  • Specify OD and blocking range rather than only center wavelength.
  • Upload spectra and reference curves where available.
Guide use

Guide review checkpoints.

Use this guide to prepare inputs for RFQ review. Final component choices should be confirmed against spectra, device geometry and sampling constraints.

Define

Capture the optical signal and required wavelength windows.

Constrain

Record blocking, tolerance, AOI, substrate and size limits.

Submit

Package the known fields and mark unknowns for engineering review.