Incazelo: I-Erbium-doped fiber Amplifier EDFA Optical Amplifier

Incazelo: I-Amplifier yefayibha efakwe i-ErbiumI-EDFA Optical Amplifier

I-amplifier yefayibha yokukhanya efakwe i-Erbium (I-EDFA, okungukuthi, i-optical signal amplifier ene-Er3 + doped ku-fiber core ngokusebenzisa isignali) iyi-optical amplifier yokuqala eyathuthukiswa yi-University of Southampton ngo-1985, futhi ingenye yezinto ezisunguliwe kakhulu ekuxhumaneni kwe-optical fiber. I-Erbium-doped fiber uhlobo lwe-fiber olunenani elincane lama-ion e-erbium (Er) element engavamile ku-quartz fiber, okuwumgogodla we-Isikhulisi sefayibha esifakwe i-ErbiumKusukela ngasekupheleni kweminyaka yama-1980, kuye kwenziwa intuthuko enkulu ocwaningweni lwezikhulisi zefayibha ezifakwe i-erbium. Ubuchwepheshe be-WDM buye bandisa kakhulu amandla okuxhumana ngefayibha ye-optical. Yisikhulisi se-optical esisetshenziswa kakhulu ekuxhumaneni ngefayibha ye-optical.

Isicelo: I-Optical fiber amplifier iyithuluzi le-optical amplifier elikhulisa ngqo isignali ye-optical ohlelweni lokuxhumana nge-optical fiber. Ohlelweni lokuxhumana olusebenzisa i-optical fiber, ubuchwepheshe obukhulisa ngqo isignali ye-optical ngaphandle kokuguqula isignali ye-optical ibe isignali kagesi. I-Erbium-doped fiber amplifier (i-EDFA Optical Amplifier, okungukuthi, i-optical signal amplifier ene-erbium ion Er3 + enkabeni ye-fiber ngokusebenzisa isignali) iyi-optical amplifier yokuqala eyathuthukiswa yi-University of Southampton e-United Kingdom kanye ne-Tohoku University yaseJapan, ingenye yezinto ezisunguliwe kakhulu ekuxhumaneni nge-optical fiber. I-Erbium-doped fiber uhlobo lwe-fiber olunenani elincane lama-ion e-erbium (Er) element engavamile ku-quartz fiber, okuyiyona ngqangi ye-Erbium-doped fiber amplifier. Kusukela ngasekupheleni kwawo-1980, kuye kwenziwa intuthuko enkulu ocwaningweni lwe-erbium-doped fiber amplifier. Ubuchwepheshe be-WDM buye bandisa kakhulu amandla okuxhumana nge-optical fiber. Yi-optical amplifier esetshenziswa kakhulu ekuxhumaneni nge-optical fiber.

Ipharamitha eyisisekelo

Igama legama: I-amplifier yefayibha efakwe i-Erbium

Igama elihlobene:I-Amplifier Yokukhanya

I-fiber ye-Quartz exutshwe nezinto zomhlaba ezingavamile (njenge-Nd, Er, Pr, Tm, njll.) ingakha uhlelo lwe-laser olunezinga eziningi, futhi ikhulise ngqo ukukhanya kwesignali yokufaka ngaphansi kwesenzo sokukhanya kwephampu. Ngemva kokunikeza impendulo efanele, i-fiber laser iyakhiwa. Ubude besikhathi obusebenzayo be-amplifier ye-fiber exutshwe ne-ND bungu-1060nm no-1330nm, kodwa ukuthuthukiswa kwayo kanye nokusetshenziswa kwayo kunqunyelwe ngenxa yokuphambuka echwebeni elihle kakhulu lokuxhumana kwe-fiber kanye nezinye izizathu. Ubude besikhathi obusebenzayo be-EDFA ne-PDFA busefasiteleni lokulahlekelwa okuphansi kakhulu (1550nm) kanye nobude besikhathi obungasabalali (1300nm) bokuxhumana kwe-fiber optical ngokulandelana, futhi i-TDFA isebenza ku-S-band, efaneleka kakhulu ezinhlelweni zohlelo lokuxhumana kwe-fiber optical. Ikakhulukazi i-EDFA, intuthuko esheshayo kakhulu, ibilokhu iwusizo.

Ngokusekelwe ekuthuthukisweni kwefayibha efakwe i-erbium, ama-amplifiers amaningi amasha efayibha ayaqhubeka nokuvela. Isibonelo, i-dual-band fiber amplifier (DBFA) esekelwe kufayibha efakwe i-erbium iyi-broadband optical amplifier, futhi i-broadband ingamboza cishe yonke i-wavelength division multiplexing (WDM). Umkhiqizo ofanayo yi-ultra-wideband optical amplifier (UWOA), ene-bandwidth yokumboza yokukhulisa iziteshi ze-wavelength ezifika ku-100 kufayibha eyodwa.

Ukusetshenziswa okusebenzayo

Ukusetshenziswa kwe-Erbium-doped fiber amplifier (EDFA Amplifier) ​​ohlelweni lokuxhumana lwedijithali lwe-optical fiber olujwayelekile kungasindisa ama-optical Repeaters amaningi, futhi ibanga lokudlulisela liyakhuphuka kakhulu, okubaluleke kakhulu ohlelweni lwe-trunk yekhebula olude.

Izinhlelo zayo eziyinhloko zifaka:

1, ingasetshenziswa njenge-amplifier yebanga lokukhanya. Ama-repeater e-fiber optic endabuko anemikhawulo eminingi. Isibonelo, lapho isignali yedijithali kanye nesignali ye-analog kuguqulwa komunye nomunye, i-repeater kufanele ishintshwe ngokufanele; Lapho imishini ishintsha kusuka esivinini esiphansi iye esivinini esiphezulu, i-repeater kufanele ishintshwe ngokufanele. Idlulisa ubude obufanayo besignali yokukhanya, futhi isakhiwo siyinkimbinkimbi, siyabiza, njalo njalo. Ama-amplifier e-fiber afakwe i-Erbium anqoba la maphutha, hhayi nje kuphela ukuthi akudingeki ashintshe ngokushintsha kwemodi yesignali, kodwa futhi awadingi ukushintshwa lapho imishini inwetshwa noma isetshenziselwa ukuphindaphinda kwe-optical wavelength division.

2, ingasetshenziswa njenge-optical transmitter post amplifier kanye ne-optical receiver preamplifier. Njenge-post amplifier ye-optical transmitter, amandla okudlulisa e-laser angandiswa kusuka ku-0db kuya ku-+10db. Uma isetshenziswa njenge-preamplifier ye-optical receiver, ukuzwela kwayo kungathuthukiswa kakhulu. Ngakho-ke, ama-amplifier angu-1-2 e-erbium kuphela asethwe emgqeni, futhi ibanga lokudlulisa isignali lingandiswa ngo-100-200km.

Ngaphezu kwalokho, i-amplifier yefayibha efakwe i-erbium (Isikhulisi se-EDFA) ukuxazulula inkinga. Izinzuzo eziyingqayizivele zama-amplifiers e-fiber afakwe i-Erbium ziye zaqashelwa umhlaba wonke, futhi ziye zasetshenziswa kabanzi. Kodwa-ke, ama-amplifiers e-fiber afakwe i-Erbium nawo anemikhawulo ethile. Isibonelo, ekuxhumaneni okude akukwazi ukuba phezulu naphansi, ukuxhumana kwebhizinisi lesiteshi kunzima kakhulu, akulula ukuthola amaphutha, impilo yomthombo wokukhanya wephampu ayinde, ngentuthuko eqhubekayo yobuchwepheshe bokuxhumana be-fiber optical, lezi zinkinga zizoxazululwa ngokwanelisayo.