optical filter
Telecommunications
In the optical regime, an element that selectively transmits or blocks a range of wavelengths, polarizations, etc., or selectively displaces a beam, e.g., by virtue of birefringence.
In the optical regime, an element that selectively transmits or blocks a range of wavelengths, polarizations, etc., or selectively displaces a beam, e.g., by virtue of birefringence.