Ama-amplifier optical emkhakheni wokuxhumana nge-optical fiber
An i-amplifier yokukhanyaiyithuluzi elikhulisa izimpawu zokukhanya. Emkhakheni wokuxhumana ngefayibha ye-optical, idlala indima elandelayo: 1. Ukuthuthukisa nokukhulisa amandla okukhanya. Ngokubeka i-amplifier ye-optical engxenyeni engaphambili yesithumeli se-optical, amandla okukhanya angena kufayibha angandiswa. 2. Ukukhulisa i-relay online, okuthatha indawo yama-Repeaters akhona ezinhlelweni zokuxhumana ngefayibha ye-optical; 3. Ukukhulisa kusengaphambili: Ngaphambi kwe-photodetector ekugcineni kokwamukela, isignali yokukhanya ebuthakathaka iyakhuliswa kusengaphambili ukuze kuthuthukiswe ukuzwela kokwamukela.
Njengamanje, ama-amplifier e-Optical asetshenziswa ekuxhumaneni nge-Optical fiber afaka phakathi lezi zinhlobo ezilandelayo: 1. I-amplifier ye-Semiconductor optical (I-amplifier ye-SOA Optical)/I-amplifier ye-laser ye-semiconductor (i-amplifier ye-SLA Optical); 2. Ama-amplifier e-fiber angavamile afakwe umhlaba, njenge-amplifier ye-fiber efakwe i-bait (I-amplifier ye-EDFA Optical), njll. 3. Ama-amplifiers e-fiber angewona umugqa, njenge-amplifiers ye-fiber Raman, njll. Okulandelayo yisingeniso esifushane ngokulandelana.
1. Ama-amplifier optical e-semiconductor: Ngaphansi kwezimo ezahlukene zokusetshenziswa kanye nokukhanya kobuso obuhlukile bokuphela, ama-laser e-semiconductor angakhiqiza izinhlobo ezahlukene zama-amplifier optical e-semiconductor. Uma ugesi oshayelayo we-laser ye-semiconductor uphansi kunomkhawulo wawo, okungukuthi, akukho laser ekhiqizwayo, ngalesi sikhathi, isignali yokukhanya ifakwa komunye umkhawulo. Uma nje imvamisa yalesi signali yokukhanya iseduze nesikhungo se-spectral se-laser, izokhuliswa futhi iphume komunye umkhawulo. Lolu hlobo lwei-amplifier ye-semiconductor opticalibizwa ngokuthi i-amplifier yohlobo lwe-Fabry-Perrop (FP-SLA). Uma i-laser ithambekele ngaphezu komkhawulo, i-single-mode optical signal input ebuthakathaka evela kolunye uhlangothi, inqobo nje uma imvamisa yalesi signali yokukhanya ingaphakathi kwe-spectrum yale laser yemodi eminingi, isignali yokukhanya izokhuliswa futhi ivalelwe kumodi ethile. Lolu hlobo lwe-amplifier yokukhanya lubizwa ngokuthi i-amplifier yohlobo lwe-injection-locked (IL-SLA). Uma iziphetho ezimbili ze-semiconductor laser zimbozwe ngesibuko noma zipheshulwa ngesendlalelo sefilimu elwa nokukhanya, okwenza ukukhishwa kwayo kube kuncane kakhulu futhi kungakwazi ukwakha umgodi ojikelezayo we-Fabry-Perrow, lapho isignali yokukhanya idlula kungqimba olusebenzayo lwe-waveguide, izokhuliswa ngenkathi ihamba. Ngakho-ke, lolu hlobo lwe-amplifier yokukhanya lubizwa ngokuthi i-traveling wave type optical amplifier (TW-SLA), futhi isakhiwo sayo siboniswe esithombeni esilandelayo. Ngenxa yokuthi ububanzi be-bandwidth ye-traveling wave type optical amplifier bukhulu kathathu kune-Fabry-Perot type amplifier, futhi ububanzi bayo be-3dB bungafinyelela ku-10THz, ingakhulisa izimpawu ze-optical zamaza ahlukahlukene futhi iyi-optical amplifier ethembisayo kakhulu.
2. I-amplifier yefayibha efakwe i-bait: Yakhiwe izingxenye ezintathu: Eyokuqala ifayibha efakwe i-doped enobude obusukela kumamitha amaningana kuya kwamashumi amamitha. Lokhu kungcola kungama-ion omhlaba angavamile, akha izinto zokwenziwa kwe-laser; Eyesibili umthombo wephampu ye-laser, ohlinzeka ngamandla wamaza afanele ukuze kuvuse ama-ion omhlaba angavamile ukuze kufezwe ukukhuliswa kokukhanya. Eyesithathu i-coupler, evumela ukukhanya kwephampu kanye nokukhanya kwesignali ukuthi kuhlangane nezinto ezisebenza ngefayibha ye-optical efakwe i-doped. Isimiso sokusebenza se-fiber amplifier sifana kakhulu nese-laser yesimo esiqinile. Ibangela isimo sokusatshalaliswa kwenombolo yezinhlayiya ezibuyiselwe emuva ngaphakathi kwezinto ezisebenza nge-laser futhi ikhiqize imisebe evuselelwe. Ukuze kwakhiwe isimo sokusatshalaliswa kwenombolo yezinhlayiya ezizinzile, amazinga wamandla angaphezu kwamabili kufanele ahileleke ekushintsheni kokukhanya, ngokuvamile izinhlelo zamazinga amathathu namazinga amane, ngokuhlinzekwa okuqhubekayo kwamandla avela emthonjeni wephampu. Ukuze kuhlinzekwe amandla ngempumelelo, ubude be-photon yephampu kufanele bube bufushane kunobe-photon ye-laser, okungukuthi, amandla e-photon yephampu kufanele abe makhulu kunobe-photon ye-laser. Ngaphezu kwalokho, umgodi ozwakalayo wakha impendulo enhle, ngakho-ke kungakhiwa i-laser amplifier.
3. Ama-amplifiers e-fiber angewona umugqa: Womabili ama-amplifiers e-fiber angewona umugqa kanye nama-amplifiers e-fiber e-erbium awela ngaphansi kwesigaba sama-amplifiers e-fiber. Kodwa-ke, owokuqala usebenzisa umphumela ongewona umugqa wezintambo ze-quartz, kuyilapho owokugcina usebenzisa ama-arbium-doped quartz fibers ukuze asebenze kuma-media asebenzayo. Ama-optical fibers e-quartz ajwayelekile azokhiqiza imiphumela enamandla engewona umugqa ngaphansi kwesenzo sokukhanya okunamandla kwephampu kwama-wavelength afanele, njenge-stimulated Raman scattering (SRS), i-stimulated Brillouin scattering (SBS), kanye nemiphumela yokuxubana kwamagagasi amane. Lapho isignali idluliselwa nge-optical fiber kanye nokukhanya kwephampu, ukukhanya kwesignali kungakhuliswa. Ngakho-ke, akha ama-amplifiers e-fiber Raman (FRA), ama-amplifiers e-Brillouin (FBA), kanye nama-amplifiers e-parametric, wonke angama-amplifiers e-fiber asakazwayo.
Isifinyezo: Isiqondiso esivamile sokuthuthukiswa kwawo wonke ama-amplifier optical yinzuzo ephezulu, amandla aphezulu okukhipha, kanye nomsindo ophansi.
Isikhathi sokuthunyelwe: Meyi-08-2025