What is meant by grating element?
Hi Anandita!
Diffraction grating element is an optical device made up of glass or polished metal surface having a very large number of fine slits in it. It is used for producing the optical spectra by diffraction.
We are providing the answer by assuming that you are asking about the diffraction grating element used in the Optical fiber communication.
We look forward to hear from you again!
Cheers!!