Kuyinii-amplifier ye-semiconductor optical
I-amplifier ye-semiconductor optical uhlobo lwe-amplifier ye-optical esebenzisa i-semiconductor gain medium. Ifana ne-laser diode, lapho isibuko esisekugcineni okuphansi sithathelwa indawo nge-semi-reflective coating. Ukukhanya kwesignali kudluliselwa nge-semi-reflective waveguide ye-semiconductor single-mode. Ubukhulu obuphambene be-waveguide bungama-micrometer angu-1-2 futhi ubude bawo bungu-0.5-2mm. Imodi ye-waveguide inokuhlangana okuphawulekayo nesifunda esisebenzayo (sokukhulisa), esidonswa yi-current. I-injected current ikhiqiza ukuhlushwa okuthile kwe-carrier ku-conduction band, okuvumela ukuguquka kwe-optical kwe-conduction band kuya ku-valence band. I-peak gain yenzeka lapho amandla e-photon emakhulu kancane kunamandla e-bandgap. I-SOA optical amplifier ivame ukusetshenziswa ezinhlelweni zokuxhumana ngendlela ye-pigtails, enobude be-wavelength obusebenza cishe obungu-1300nm noma u-1500nm, enikeza cishe i-30dB ye-gain.
II-amplifier ye-optical ye-semiconductor ye-SOAiyidivayisi ye-PN junction enesakhiwo somthombo we-quantum wohlobo lwe-strain. I-external forward bias iguqula inani lezinhlayiya ze-dielectric. Ngemva kokungena kokukhanya kwangaphandle kokuvuselela, imisebe evuselelwe iyakhiqizwa, okufeza ukwanda kwezimpawu zokukhanya. Zonke izinqubo ezintathu zokudlulisa amandla ezingenhla zikhona kuI-amplifier ye-SOA optical. Ukwandiswa kwezibonakaliso zokukhanya kusekelwe ekukhishweni okukhuthaziwe. Izinqubo zokumuncwa okukhuthaziwe kanye nokukhishwa okukhuthaziwe zikhona ngasikhathi sinye. Ukumuncwa okukhuthaziwe kokukhanya kwephampu kungasetshenziswa ukusheshisa ukubuyiswa kwezithwali, futhi ngasikhathi sinye, iphampu kagesi ingathumela ama-electron ezingeni eliphezulu lamandla (ibhendi yokuqhuba). Lapho imisebe ezenzakalelayo ikhuliswa, izokwakha umsindo wemisebe ezenzakalelayo okhulisiwe. I-SOA optical amplifier isekelwe kuma-semiconductor chips.
Ama-semiconductor chips akhiwe ngama-compound semiconductors, njenge-GaAs/AlGaAs, i-InP/AlGaAs, i-InP/InGaAsP kanye ne-InP/InAlGaAs, njll. Lezi futhi ziyizinto zokwakha ama-semiconductor lasers. Umklamo we-waveguide we-SOA ufana noma ufana nowama-laser. Umehluko uwukuthi ama-laser adinga ukwakha umgodi ojikelezayo ozungeze i-gain medium ukuze akhiqize futhi alondoloze ukushukuma kwesignali ye-optical. Isignali ye-optical izokhuliswa izikhathi eziningi kumgodi ngaphambi kokuba ikhishwe.Isikhulisi se-SOA(lokho esikuxoxayo lapha kukhawulelwe kuma-amplifiers e-wave traveling asetshenziswa ezinhlelweni eziningi), ukukhanya kudinga ukudlula kuphela ku-gain medium kanye, futhi ukubonakaliswa kwangemuva kuncane. Isakhiwo se-amplifier ye-SOA siqukethe izindawo ezintathu: Indawo P, Indawo I (ungqimba olusebenzayo noma i-node), kanye neNdawo N. Ungqimba olusebenzayo luvame ukwakhiwa yi-quantum Wells, engathuthukisa ukusebenza kahle kokuguqulwa kwe-photoelectric futhi inciphise umkhawulo wamanje.
Umfanekiso 1 I-laser yefayibha ene-SOA ehlanganisiwe yokukhiqiza ama-optical pulses
Kusetshenziswe ekudlulisweni kwesiteshi
Ama-SOA ngokuvamile awasetshenziswa kuphela ekukhuliseni: angasetshenziswa futhi emkhakheni wokuxhumana nge-optical fiber, izinhlelo zokusebenza ezisekelwe ezinqubweni ezingezona eziqondile ezifana nokugcwala kwe-saturation noma i-cross-phase polarization, ezisebenzisa ukuhlukahluka kokuhlushwa kwe-carrier ku-SOA optical amplifier ukuthola izinkomba zokukhanya ezihlukile. Le miphumela ingasetshenziswa ekudlulisweni kwesiteshi (ukuguqulwa kwe-wavelength), ukuguqulwa kwefomethi ye-modulation, ukubuyiselwa kwewashi, ukuvuselelwa kwesignali kanye nokuqashelwa kwamaphethini, njll. ezinhlelweni zokuphindaphinda kwe-wavelength division.
Ngokuthuthuka kobuchwepheshe besekethe ehlanganisiwe ye-optoelectronic kanye nokunciphisa izindleko zokukhiqiza, izinkambu zokusetshenziswa kwe-SOA semiconductor optical amplifier njenge-basic amplifier, amadivayisi optical asebenzayo kanye nezingxenye zesistimu engaphansi zizoqhubeka nokukhula.
Isikhathi sokuthunyelwe: Juni-23-2025