Rof Electro-optic modulator EDFA Optical Amplifier Erbium Doped CHIKWANGWANI Amplifier YDFA Amplifier

Chojambulira mawu (optical amplifier) ​​ndi chipangizo chomwe chimalandira kuwala kwa chizindikiro cholowera ndipo chimapanga chizindikiro chotulutsa mawu chokhala ndi mphamvu yayikulu yowunikira. Kawirikawiri, zolowetsa ndi zotulutsa zimakhala kuwala kwa laser (kawirikawiri mitundu ina ya kuwala), zomwe zimafalikira ngati kuwala kwa Gaussian pamalo omasuka kapena mu ulusi. Kukula kumeneku kumachitika mu chotchedwa gain medium, chomwe chiyenera "kupopedwa" (mwachitsanzo, kupatsidwa mphamvu) kuchokera ku gwero lakunja. Ma amplifier ambiri a kuwala amapopedwa ndi kuwala kapena magetsi.
Mitundu yosiyanasiyana ya ma amplifiers imasiyana kwambiri mwachitsanzo pankhani ya mphamvu ya saturation. Mwachitsanzo, rare-earth-doped laser gain media imatha kusunga mphamvu zambiri, pomwe ma optical parametric amplifiers amapereka amplification bola ngati pampu ilipo. Mwachitsanzo, ma semiconductor optical amplifiers amasunga mphamvu zochepa kwambiri kuposa ma fiber amplifiers, ndipo izi zili ndi tanthauzo lofunikira pa kulumikizana kwa optical fiber.