Whakaahuatanga: Erbium-doped fiber Amplifier EDFA Optical Amplifier

Whakaahuatanga: Erbium-doped muka AmplifierEDFA Optical Amplifier

Ko te whakakaha muka whatu erbium-doped (EDFA, ara, te whakakaha tohu whatu ki Er3 + doped i roto i te muka matua i roto i te tohu) ko te whakakaha whatu tuatahi whakawhanakehia e te Whare Wananga o Southampton i roto i 1985, a ko reira tetahi o nga mea tino nui i roto i te whakawhitinga muka whatu. Ko te muka erbium-doped he momo muka me te iti o nga katote onge whenua erbium (Er) i roto i te muka kiripaka, ko te uho oKo te whakakaha muka erbium-doped. Mai i te mutunga o te tekau tau atu i 1980, kua puta nga mahi nui i roto i te rangahau o nga whakakaha muka erbium-doped. Ko te hangarau WDM kua tino piki ake te kaha o te whakawhitiwhiti korero muka. Koia te whakakaha whatu e whakamahia nuitia ana i roto i te whakawhitiwhiti muka whatu.

Taupānga: Ko te whakakaha muka whatu he taputapu whakakaha whatu e whakakaha tika ana i te tohu whatu i roto i te punaha korero muka whatu. I roto i te punaha korero ma te whakamahi i te muka whatu, he hangarau e whakanui tika ana i te tohu whatu me te kore e huri i te tohu whatu ki te tohu hiko. Erbium-doped muka tīwerawera (EDFA Optical Amplifier, e ko, te whakakaha tohu whatu ki te erbium katote Er3 + i roto i te matua muka i roto i te tohu) ko te tīwerawera whatu tuatahi whakawhanakehia e te Whare Wānanga o Southampton i roto i te United Kingdom me Japan o Tohoku University, Ko reira tetahi o nga mea tino nui i roto i te whakawhitiwhiti muka whatu. Ko te muka Erbium-doped he momo muka me te iti o nga katote onge whenua huānga erbium (Er) i roto i te muka kiripaka, koinei te matua o te whakahiato muka Erbium-doped. Mai i te mutunga o te tekau tau atu i 1980, kua puta nga mahi nui i roto i te rangahau o nga whakakaha muka erbium-doped. Ko te hangarau WDM kua tino piki ake te kaha o te whakawhitiwhiti korero muka. Koia te whakakaha whatu e whakamahia nuitia ana i roto i te whakawhitiwhiti muka whatu.

Tawhā taketake

Ingoa kupu: Erbium-doped fiber amplifier

kupu e pa ana:Whakakaha Optical

Ko te muka Quartz doped ki nga huānga whenua onge (pēnei i te Nd, Er, Pr, Tm, me etahi atu) ka taea te hanga i te punaha laser taumata-maha, me te whakakaha tika i te rama tohu whakauru i raro i te mahi o te rama papu. I muri i te whakarato i nga urupare tika, ka hangaia te laser muka. Ko te roangaru whakahaere o te ND-doped fiber amplifier he 1060nm me te 1330nm, engari ko tana whanaketanga me tana tono he iti na te rereke mai i te tauranga tino pai o te whakawhitiwhiti muka me etahi atu take. Ko nga roangaru whakahaere o te EDFA me te PDFA kei roto i te iti rawa o te mate (1550nm) me te kore o te roangaru whakamararatanga (1300nm) matapihi o te whakawhitinga o te muka whatu, me te mahi a TDFA i roto i te S-band, he mea tino pai mo nga tono punaha whakawhitiwhiti muka. Ina koa ko te EDFA, te whanaketanga tere rawa, kua whai kiko.

I runga i te whanaketanga o te muka erbium-doped, he maha nga whakakaha muka hou ka puta tonu. Hei tauira, ko te DBFA e hangai ana i runga i te muka erbium-doped ko te whakakaha whatu whaanui, a ka taea e te aunui te hipoki tata ki te katoa o te roangaru wehenga multiplexing (WDM) bandwidth. Ko tetahi hua rite ko te ultra-wideband optical amplifier (UWOA), kei a ia te bandwidth kapinga ki te whakanui ake ki te 100 nga hongere roangaru i roto i te muka kotahi.

Te tono mahi

Ko te tono a te Erbium-doped fiber amplifier (EDFA Amplifier) ​​i roto i te punaha korero mamati muka whatu tikanga ka taea te whakaora i te maha o nga Repeater whatu, a ka nui haere te tawhiti o te reera, he mea tino nui mo te punaha pouaka taura tawhiti.

Ko ona tono matua ko:

1, ka taea te whakamahi hei whakakaha tawhiti marama. He maha nga here o nga Repeater muka hiko tawhito. Hei tauira, ka huri te tohu matihiko me te tohu tairitenga ki a raua ano, me huri te tukurua kia rite; Ka huri nga taputapu mai i te tere iti ki te tere tere, me whakakapi te tukurua. Tukuna noa te roangaru o te tohu marama, he uaua te hanganga, he utu nui, me etahi atu. Ko nga whakakaha muka Erbium-doped e hinga ana i enei ngoikoretanga, ehara i te mea me whakarereke me te whakarereketanga o te aratau tohu, engari kaore hoki e hiahiatia kia whakakapihia ka whakawhänuihia nga taputapu, ka whakamahia ranei mo te wehewehenga o te roangaru whatu.

2, ka taea te whakamahi hei kaiwhakawhiti whakaata pou whakahiato me te kaiwhakawhiwhi tohu tohu. I te mea ko te whakahiato pou o te kaiwhakawhiti whatu, ka taea te whakanui i te mana tuku o te laser mai i te 0db ki te +10db. I te wa e whakamahia ana hei whakamaarama o te kaikawe whatu, ka taea hoki te whakapai ake i tona tairongo. Na reira, ko te 1-2 anake nga whakahiato erbium-doped e whakanohohia ana ki runga i te raina, a ka taea te whakanui ake i te tawhiti tuku tohu ma te 100-200km.

Hei taapiri, ko te whakakaha muka erbium-doped(EDFA Amplifier) hei whakaoti rapanga. Ko nga painga ahurei o nga whakakaha muka Erbium-doped kua mohiohia e te ao, kua kaha ake te whakamahi. Heoi ano, he herenga ano nga whakakaha muka Erbium-doped. Hei tauira, i roto i te roa-tawhiti kōrero e kore e taea e ki runga, me te ki raro, he uaua ake te whakapā pakihi teihana, e kore e ngāwari ki te kitea he, papu te ora puna marama e kore e roa, ki te ahunga whakamua tonu o te hangarau muka whatu kōrero, enei raruraru ka pai whakaotia.