hat
Ptik filtè an se yon gita pou fè sa ki itilize pou chwazi D', ki ka fè chwa D' mande l nan yon gwo kantite D' epi rejte D' adisyon yo. Li kapab itilize nan D' chwazi, la bri filtre de ptik anplifikatè a, / pran péréquation, ptik multiplexage / demultiplexing.
eng
The optical filter is an instrument that is used for wavelength selection, which can select required wavelengths from a large number of wavelengths and reject the addition wavelengths. It can used in wavelength selection, the noise filter of the optical amplifier, gain equalization, optical multiplexing / demultiplexing.