Yintoni ii-amplifier ye-optical ye-semiconductor
I-amplifier ye-semiconductor optical luhlobo lwe-amplifier ye-optical esebenzisa i-semiconductor gain medium. Ifana ne-laser diode, apho isibuko esisezantsi sitshintshwa khona nge-semi-reflective coating. Ukukhanya kwesignali kudluliselwa nge-semiconductor single-mode waveguide. Ubukhulu obunqamlezileyo be-waveguide yi-1-2 micrometers kwaye ubude bayo bukwi-0.5-2mm. I-waveguide mode inokudibana okuphawulekayo nommandla osebenzayo (we-amplification), ophonswa yi-current. I-injected current ivelisa i-carrier concentration ethile kwi-conduction band, evumela ukuguquka kwe-optical ye-conduction band ukuya kwi-valence band. I-peak gain yenzeka xa amandla e-photon engaphezulu kancinci kunamandla e-bandgap. I-SOA optical amplifier isetyenziswa rhoqo kwiinkqubo zonxibelelwano ngendlela ye-pigtails, enobude obusebenzayo obujikeleze i-1300nm okanye i-1500nm, ebonelela malunga ne-30dB ye-gain.
II-amplifier ye-optical ye-SOA semiconductorsisixhobo sokudibanisa i-PN esinesakhiwo sequla le-strain quantum. I-external forward bias iguqula inani lamasuntswana e-dielectric. Emva kokuba ukukhanya kwangaphandle kokuvuselela kungene, imitha evuselelweyo iyaveliswa, nto leyo efezekisa ukwanda kwemiqondiso ye-optical. Zonke iinkqubo ezintathu zokudlulisa amandla ezingentla zikhona kwiIsikhulisi se-SOA optical. Ukwandiswa kwemiqondiso ye-optical kusekelwe ekukhutshweni okukhuthazwayo. Inkqubo yokufunxwa okukhuthazwayo kunye neenkqubo zokukhutshwa okukhuthazwayo zikhona ngaxeshanye. Ukufunxwa okukhuthazwayo kokukhanya kwepompo kunokusetyenziswa ukukhawulezisa ukubuyiselwa kwezixhobo, kwaye kwangaxeshanye, ipompo yombane inokuthumela ii-electron kwinqanaba eliphezulu lamandla (ibhendi yokuqhuba). Xa imitha ye-spontaneous ikhuliswa, iya kwenza ingxolo yemitha ye-spontaneous eyandisiweyo. I-SOA optical amplifier isekelwe kwiitships ze-semiconductor.
Iitships ze-semiconductor zenziwe zii-compound semiconductors, ezifana neGaAs/AlGaAs, InP/AlGaAs, InP/InGaAsP kunye ne-InP/InAlGaAs, njl. Ezi zikwazixhobo zokwenza ii-semiconductor lasers. Uyilo lwe-waveguide ye-SOA lufana okanye lufana nolwee-laser. Umahluko ukho ekubeni ii-laser kufuneka zenze i-resonant cavity ejikeleze i-gain medium ukuvelisa nokugcina i-oscillation yesignali ye-optical. Isignali ye-optical iya kwandiswa amaxesha amaninzi kwi-cavity ngaphambi kokuba iphume.Isikhulisi se-SOA(esixoxa ngako apha kukhawulelwe kwi-traveling wave amplifiers ezisetyenziswa kwii-applications ezininzi), ukukhanya kufuneka kudlule kwi-gain medium kube kanye, kwaye ukubonakaliswa okungasemva kuncinci. Ulwakhiwo lwe-SOA amplifier luqulathe iindawo ezintathu: Indawo P, Indawo I (umaleko osebenzayo okanye i-node), kunye neNdawo N. Umaleko osebenzayo uhlala wenziwe yi-quantum Wells, enokuphucula ukusebenza kakuhle kokuguqulwa kwe-photoelectric kwaye inciphise umsinga womda.
Umfanekiso 1 I-laser yefayibha ene-SOA edibeneyo yokuvelisa ii-optical pulses
Ifakwe kudluliselo lwetshaneli
Ii-SOA azisetyenziswa kuphela ekukhuliseni: zingasetyenziswa nakwicandelo lonxibelelwano lwe-optical fiber, usetyenziso olusekelwe kwiinkqubo ezingezizo ezilandelelanayo ezifana nokwanda kwe-saturation okanye i-cross-phase polarization, ezisebenzisa umahluko woxinzelelo lwe-carrier kwi-SOA optical amplifier ukufumana ii-refractive indices ezahlukeneyo. Ezi ziphumo zingasetyenziswa ekudlulisweni kwetshaneli (ukuguqulwa kwe-wavelength), ukuguqulwa kwefomathi ye-modulation, ukubuyiswa kwewotshi, ukuvuselelwa kwesignali kunye nokuqatshelwa kwepateni, njl. kwiinkqubo ze-multiplexing zokwahlulahlula i-wavelength.
Ngokuphucuka kwetekhnoloji yesekethe edibeneyo ye-optoelectronic kunye nokunciphisa iindleko zokuvelisa, iindawo zokusetyenziswa kwe-SOA semiconductor optical amplifier njengee-basic amplifier, izixhobo ze-optical ezisebenzayo kunye nezixhobo zenkqubo engaphantsi ziya kuqhubeka nokukhula.
Ixesha lokuthumela: Juni-23-2025