Tsananguro: Amplifier yefayibha yakasanganiswa neErbiumEDFA Optical amplifier
Amplifier ye optical fiber yakasanganiswa neErbium (EDFA, kureva kuti, optical signal amplifier ine Er3 + doped mu fiber core kuburikidza ne signal) ndiyo optical amplifier yekutanga yakagadzirwa neYunivhesiti yeSouthampton muna 1985, uye ndeimwe yezvigadzirwa zvikuru mu optical fiber communication. Erbium-doped fiber rudzi rwe fiber ine huwandu hushoma hwe rare earth element erbium (Er) ions mu quartz fiber, inova ndiyo core yeAmplifier yefayibha yakasanganiswa neErbiumKubva kuma1980 ekupedzisira, kufambira mberi kukuru kwakaitwa mukutsvagisa kwe erbium-doped fiber amplifiers. Tekinoroji yeWDM yakawedzera zvakanyanya kugona kwekutaurirana ne optical fiber. Ndiyo optical amplifier inonyanya kushandiswa mukutaurirana ne optical fiber.
Mashandisirwo: Optical fiber amplifier chishandiso che optical amplifier chinowedzera zvakananga chiratidzo che optical mu optical fiber communication system. Mu system yekutaurirana uchishandisa optical fiber, i tekinoroji inowedzera zvakananga chiratidzo che optical pasina kushandura chiratidzo che optical kuita chiratidzo chemagetsi. Erbium-doped fiber amplifier (EDFA Optical Amplifier, kureva kuti, optical signal amplifier ine erbium ion Er3 + mu fiber core kuburikidza nechiratidzo) ndiyo yekutanga optical amplifier yakagadzirwa neYunivhesiti yeSouthampton muUnited Kingdom neJapan's Tohoku University, ndeimwe yezvigadzirwa zvikuru mu optical fiber communication. Erbium-doped fiber imhando ye fiber ine huwandu hushoma hwe rare earth element erbium (Er) ions mu quartz fiber, inova musimboti weErbium-doped fiber amplifier. Kubva kuma1980 ekupedzisira, kufambira mberi kukuru kwakaitwa mukutsvagisa kwe erbium-doped fiber amplifier. Tekinoroji yeWDM yakawedzera zvakanyanya kugona kwe optical fiber communication. Ndiyo optical amplifier inonyanya kushandiswa mu optical fiber communication.
Chikamu chekutanga
Zita reShoko: Erbium-doped fiber amplifier
Izwi rinoenderana:Chinopa simba reOptical
Fiber yeQuartz ine zvinhu zvisingawanzoitiki zvepasi (zvakadai seNd, Er, Pr, Tm, nezvimwewo) inogona kugadzira sisitimu yelaser ine mazinga akawanda, uye ichiwedzera zvakananga chiedza chekupinda pasi pekushanda kwechiedza chepombi. Mushure mekupa mhinduro yakakodzera, fiber laser inoumbwa. Wavelength yekushanda ye ND-doped fiber amplifier ndeye 1060nm uye 1330nm, asi kugadzirwa kwayo uye kushandiswa kwayo kwakaganhurirwa nekuda kwekutsauka kubva pachiteshi chakanaka chekutaurirana kwefiber nezvimwe zvikonzero. Wavelength yekushanda yeEDFA nePDFA iri muhwindo rekudzikira kwakaderera (1550nm) uye zero dispersion wavelength (1300nm) yekutaurirana kwefiber, zvichiteerana, uye TDFA inoshanda muS-band, iyo yakakodzera kwazvo mashandisirwo esystem yekutaurirana kwefiber. Kunyanya EDFA, iyo inokurumidza kukura, yave ichishanda.
Zvichibva pakugadzirwa kwefiber ine erbium-doped, ma fiber amplifiers matsva akawanda anoramba achionekwa. Semuenzaniso, dual-band fiber amplifier (DBFA) yakavakirwa pafiber ine erbium-doped i broadband optical amplifier, uye broadband inogona kufukidza inenge wavelength division multiplexing (WDM) bandwidth yese. Chigadzirwa chakafanana i ultra-wideband optical amplifier (UWOA), iyo ine coverage bandwidth yekuwedzera kusvika kune ma wavelength channels zana mufiber imwe chete.
Kushanda kunoshanda
Kushandiswa kweErbium-doped fiber amplifier (EDFA Amplifier) muchirongwa chekukurukurirana chedigital fiber chemazuva ano kunogona kuchengetedza maOptical Repeaters akawanda, uye daro re relay rinowedzerwa zvakanyanya, izvo zvakakosha zvikuru kune tambo yetambo inofamba kure.
Mashandisirwo ayo makuru anosanganisira:
1, inogona kushandiswa se amplifier yekureruka kure. Zvishandiso zvemagetsi zve fiber optic zvechinyakare zvine miganhu yakawanda. Semuenzaniso, kana chiratidzo chedhijitari nechiratidzo cheanalog zvachinjwa kuita chimwe nechimwe, chinodzokorora chinofanira kuchinjwa zvinoenderana; Kana michina ikachinja kubva pakumhanya kwakaderera kuenda pakumhanya kwakanyanya, chinodzokorora chinofanira kutsiviwa zvinoenderana. Chinongotumira wavelength imwe chete yechiratidzo chechiedza, uye chimiro chacho chakaoma, chinodhura, nezvimwewo. Ma amplifier e fiber ane Erbium anokunda zvikanganiso izvi, haafanire kungochinja nekuchinja kwemodhi yechiratidzo, asiwo haafanire kutsiviwa kana michina yawedzerwa kana kushandiswa pakuwedzera wavelength division multiplexing.
2, inogona kushandiswa se optical transmitter post amplifier uye optical receiver preamplifier. Se post amplifier ye optical transmitter, simba re transmission re laser rinogona kuwedzerwa kubva pa 0db kusvika pa +10db. Kana ikashandiswa se preamplifier ye optical receiver, kunzwa kwayo kunogonawo kuvandudzwa zvakanyanya. Saka, 1-2 erbium-doped amplifier chete ndiyo yakaiswa pamutsetse, uye daro re signal transmission rinogona kuwedzerwa ne 100-200km.
Pamusoro pezvo, amplifier yefiber yakasanganiswa ne erbium (EDFA amplifier) kugadzirisa dambudziko iri. Mabhenefiti akasiyana eErbium-doped fiber amplifiers akaonekwa pasi rose, uye ave achishandiswa zvakanyanya. Zvisinei, Erbium-doped fiber amplifiers anewo zvimwe zvipingamupinyi. Semuenzaniso, mukutaurirana kure kure hakugone kuve kumusoro nekudzika, kubatana kwebhizinesi rechiteshi kwakaoma, hakusi nyore kuwana zvikanganiso, hupenyu hwepombi yechiedza hahurefu, nekufambira mberi kuri kuramba kuchienderera mberi kwetekinoroji yekutaurirana ye optical fiber, matambudziko aya achagadziriswa zvinogutsa.
Nguva yekutumira: Kurume-14-2025