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

Inkcazo: I-Erbium-doped fiber AmplifierI-EDFA Optical Amplifier

Iamplifier yefiber optical erbium-doped (EDFA, oko kukuthi, i-amplifier yesignali ye-optical kunye ne-Er3 + ifakwe kwi-fiber core ngokusebenzisa i-signal) yi-amplifier yokuqala ye-optical eyenziwe yiYunivesithi yaseSouthampton kwi-1985, kwaye yenye yezona zinto ziqanjwe kakhulu kunxibelelwano lwefiber optical. I-Erbium-doped fiber luhlobo losinga olunomlinganiselo omncinci we-earbium element enqabileyo yomhlaba (Er) ion kwi-quartz fiber, engundoqoI-Erbium-doped fiber amplifier. Ukusukela ngasekupheleni kweminyaka yoo-1980, kwenziwe impumelelo enkulu kuphando lwe-erbium-doped fiber amplifiers. Itekhnoloji ye-WDM inyuse kakhulu amandla onxibelelwano lwefiber optical. Yeyona amplifier isetyenziswa kakhulu kunxibelelwano lwefiber optical.

Isicelo: I-Optical fiber amplifier sisixhobo se-optical amplifier ekhulisa ngokuthe ngqo isignali ye-optical kwi-optical fiber communication system. Kwinkqubo yokunxibelelana usebenzisa i-fiber optical, iteknoloji eyandisa ngokuthe ngqo isignali ye-optical ngaphandle kokuguqula isignali ye-optical ibe ngumqondiso wombane. I-Erbium-doped fiber amplifier (i-EDFA Optical Amplifier, oko kukuthi, i-optical signal amplifier kunye ne-erbium ion Er3 + kwi-fiber core ngokusebenzisa umqondiso) yi-amplifier yokuqala ye-optical ephuhliswe yiYunivesithi yaseSouthampton e-United Kingdom kunye neYunivesithi yaseTohoku yaseJapan, yenye yezona zinto ziqanjwe kakhulu kwi-fiber optical communication. I-Erbium-doped fiber luhlobo lwefiber enomlinganiselo omncinci we-earth element erbium (Er) ion kwi-quartz fiber, engundoqo we-Erbium-doped fiber amplifier. Ukusukela ngasekupheleni kweminyaka yoo-1980, kwenziwe impumelelo enkulu kuphando lwe-erbium-doped fiber amplifiers. Itekhnoloji ye-WDM inyuse kakhulu amandla onxibelelwano lwefiber optical. Yeyona amplifier isetyenziswa kakhulu kunxibelelwano lwefiber optical.

Ipharamitha esisiseko

Igama legama: I-Erbium-doped fiber amplifier

Ixesha eliyeleleneyo:iAptical Amplifier

I-quartz fiber efakwe kwizinto ezinqabileyo zomhlaba (ezifana ne-Nd, Er, Pr, Tm, njl.) Inokwenza inkqubo ye-laser yamanqanaba amaninzi, kwaye ikhulise ngokuthe ngqo ukukhanya kwesignali yegalelo phantsi kwesenzo sokukhanya kwempompo. Emva kokubonelela ngengxelo efanelekileyo, i-fiber laser yenziwa. Ubude obusebenzayo be-ND-doped fiber amplifier yi-1060nm kunye ne-1330nm, kodwa uphuhliso lwayo kunye nokusetyenziswa kwayo kulinganiselwe ngenxa yokutenxa kwi-port ye-fiber yonxibelelwano kunye nezinye izizathu. Ubude obusebenzayo be-EDFA kunye ne-PDFA buphantsi kwelahleko (1550nm) kunye ne-zero dispersion wavelength (1300nm) ifestile yonxibelelwano lwefiber optical ngokulandelanayo, kwaye iTDFA isebenza kwi-S-band, efanelekileyo kakhulu kwizicelo zenkqubo yonxibelelwano lwefiber. Ngokukodwa i-EDFA, uphuhliso olukhawulezayo, luye lwasebenza.

Ngokwesiseko sophuhliso lwefiber-doped fiber, ezininzi ii-fiber amplifiers ezintsha ziyaqhubeka ukubonakala. Umzekelo, i-dual-band fiber amplifier (DBFA) esekelwe kwi-erbium-doped fiber yi-broadband optical amplifier, kwaye i-broadband inokugubungela phantse yonke i-wavelength division multiplexing (WDM) bandwidth. Imveliso efanayo yi-ultra-wideband optical amplifier (UWOA), enomthamo wokugubungela ukukhulisa ukuya kuthi ga kwiitshaneli ze-wavelength ezili-100 kwifiber enye.

Ukusetyenziswa okusebenzayo

Ukusetyenziswa kwe-Erbium-doped fiber amplifier (EDFA Amplifier) ​​kwinkqubo yonxibelelwano yedijithali yefiber eqhelekileyo inokugcina iiRepeaters ezininzi zamehlo, kwaye umgama wokudluliselwa wanda kakhulu, obaluleke kakhulu kwinkqubo yesiqu sentambo yomgama omde.

Izicelo zayo eziphambili ziquka:

1, ingasetyenziswa njenge amplifier yomgama okhanyayo. IiReyitha zefiber optic ze-elektroniki zinemida emininzi. Ngokomzekelo, xa isignali yedijithali kunye nesignali ye-analog iguqulwa enye kwenye, iphinda iphindwe kufuneka itshintshwe ngokufanelekileyo; Xa isixhobo sitshintsha ukusuka kwisantya esisezantsi ukuya kwisantya esiphezulu, umntu ophindayo kufuneka atshintshwe ngokufanelekileyo. Ukuhambisa kuphela ubude obufanayo bomqondiso wokukhanya, kwaye isakhiwo siyinkimbinkimbi, siyabiza, njalo njalo. I-Erbium-doped fiber amplifiers iyazoyisa ezi ntsilelo, akufuneki nje ukuba zitshintshe ngotshintsho lwemowudi yesignali, kodwa akufuneki ukuba zitshintshwe xa isixhobo sandisiwe okanye sisetyenziselwa ulwahlulo lwe-wavelength optical division multiplexing.

2, inokusetyenziswa njenge-optical transmitter post amplifier kunye ne-optical receiver preamplifier. Njengoko i-post amplifier ye-optical transmitter, amandla okuhambisa i-laser anokunyuswa ukusuka kwi-0db ukuya kwi-10db. Xa isetyenziswe njenge-preamplifier ye-optical receiver, uvakalelo lwayo lunokuphuculwa kakhulu. Ngoko ke, kuphela i-1-2 i-erbium-doped amplifiers ibekwe kumgca, kwaye umgama wokuhambisa umqondiso unokunyuswa nge-100-200km.

Ukongeza, i-erbium-doped fiber amplifier (Isandisi se-EDFA) ukusombulula ingxaki. Iinzuzo ezizodwa ze-Erbium-doped fiber amplifiers ziye zaqatshelwa lihlabathi, kwaye ziye zasetyenziswa ngokubanzi nangakumbi. Nangona kunjalo, i-Erbium-doped fiber amplifiers nazo zinemida ethile. Ngokomzekelo, kunxibelelwano olude alukwazi ukuphakama naphantsi, uqhagamshelwano loshishino lwesikhululo lunzima ngakumbi, akulula ukufumana iimpazamo, ubomi bomthombo wokukhanya wepompo abukho ixesha elide, kunye nenkqubela phambili yeteknoloji yonxibelelwano lwefiber optical, ezi ngxaki ziya kusonjululwa ngokwanelisayo.