Ka whakamahia e te Erbium-doped fiber amplifiers (EDFAs) nga huānga onge-whenua penei i te erbium (Er3+) hei reo whakakaha.Ka werohia ki roto i te uho muka i te wa o te hangahanga.He muka poto (te nuinga o te 10 m neke atu ranei) he mea hanga ki te karaehe ka taapirihia te iti o te erbium hei dopant i te ahua o te katote (Er3+).No reira, ka mahi te muka silica hei reo manaaki.Ko te dopants (erbium) ehara i te muka silica e whakatau ana i te roangaru whakahaere me te bandwidth whiwhi.I te nuinga o te waa ka mahi nga EDFA i roto i te rohe 1550 nm te roangaru ka taea te tuku kaha ki runga ake i te 1 Tbps.Na, ka whakamahia nuitia i roto i nga punaha WDM.
Ko te kaupapa o te tukunga whakaihiihi e tika ana mo te tikanga whakakaha o te EDFA.I te wa e noho ana te dopant (he katote erbium) i roto i te kaha-kaha nui, ma te whakaahua mai i nga whakaahua o te tohu whatu whakaurunga ka whakaongaonga.Ka tukuna e ia etahi o tona kaha ki te dopant ka hoki ki te ahua iti-kaha ("whakaongaonga tukunga") e pai ake ana.Ko te ahua i raro nei e whakaatu ana i te hanganga taketake o te EDFA.
1.1 Hanganga taketake o te EDFA
Ko te ngohe taiaho papu e whakaputa ana i te tohu whatu o te roangaru (i te 980 nm, 1480 nm ranei) i te mana teitei (~ 10–200 mW).Ka honoa tenei tohu ki te tohu whakauru marama i roto i te waahanga erbiumdoped o te muka silica na roto i te hononga WDM.Ka mimiti nga katote erbium i tenei hiko tohu papu, ka peke atu ki te ahua hikaka.Ko tetahi waahanga o te tohu marama whakaputa ka paopaohia ka whangaihia i te whakaurunga o te taiaho papu ma te tātari whatu me te kaitirotiro.Ka noho tenei hei tikanga whakahaere mana urupare kia taea ai e EDFAs te whakakaha i a ia ano.Ka pau katoa nga irahiko metatable karekau he whakakaha ake ka puta.Na reira, ka whakapumau aunoa te punaha na te mea kei te noho tonu te mana whatu whakaputa o te EDFA ahakoa te rerekee o te hiko whakauru, mena he.
1.2 Te hoahoanga mahi ngawari o te EDFA
Ko te ahua i runga ake nei e whakaatu ana i te hoahoanga mahi ngawari o te EDFA ka taapirihia he tohu papu mai i te taiaho ki tetahi tohu whatu whakauru (i te 1480 nm, 980 nm ranei) ma te hono WDM.
E whakaatu ana tenei hoahoa i tetahi whakakaha EDF tino taketake.Ko te roangaru o te tohu papu (me te mana papu o te 50 mW) he 1480 nm, 980 nm ranei.Ko etahi waahanga o tenei tohu papua ka whakawhitia ki te tohu whatu whakauru ma te whakaihiihi i te tukunga i roto i te wa poto o te muka Erbium-doped.He 5-15 dB pea te whiwhinga mata me te iti iho i te 10 dB te haruru.Mo te mahi 1550 nm, ka taea te whiwhi 30-40 dB taonga mata.
1.3 Te whakatinanatanga o te EDFA
Ko te ahua i runga ake nei e whakaatu ana i te mahi ngawari o te EDFA me tona hanganga mahi ina whakamahia ana i roto i te tono WDM.
Ka rite ki te whakaatu, kei roto nga waahanga nui e whai ake nei:
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He kaiwehe i te whakaurunga.Ma tenei ka pupuri i te haruru i hangaia e te EDFA kia kore e toro atu ki te pito tuku.
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He hononga WDM.Ka whakakotahihia e ia te tohu tohu raraunga whakaurunga 1550 nm iti-kaha me te tohu opua e pupuhi ana i te mana teitei (mai i te puna papu penei i te laser) i te 980 nm te roangaru.
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He wahanga iti o te muka silica erbium-doped.Ko te mea pono, ko tenei te waahi kaha o te EDFA.
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He kaiwehe i te putanga.Ka awhina ki te aukati i tetahi tohu whakaata whakamuri mai i te uru ki roto i te muka silica erbium-doped.
Ko te tohu putanga whakamutunga ko te tohu raraunga whatu roangaru 1550 nm me te toenga 980 nm te tohu papu roangaru.
Nga Momo Whakanui Waea Erbium-Doped Fiber Amplifiers (EDFAs)
E rua nga momo hanganga o te Erbium-Doped Fiber Amplifiers (EDFAs):
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EDFA me te papu whakatö-tahi
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EDFA me te papu whakatö-a-te-toi
Ko te ahua i raro nei e whakaatu ana i te papu whakatö-a-te-a-te-a-te-a-te-a-te-a-te-a-rua nga whakaritenga papu e taea te whakamahi i roto i nga hanganga EDFA.
Nga whakaritenga papu rereke
He papu whakatö-tahi EDFA e whakaatu ana i te iti o te mana whatu whakaputa me te haruru iti;i te mea ko te EDFA he papu whakatö-a-te-a-te-a-te-a-te-a-roto e whakarato ana i te mana whatu puta ake engari ka nui ake te haruru.I roto i te EDFA arumoni angamaheni, ka whakamahia he papu-a-rua me te maminga whakatö-tahi me te whakatö-a-te-te-te-te-a-te-a-ringa ka puta he hua mata riterite.
Te tono o te EDFA hei whakanui, i roto i te raina, me te whakanui i mua
I roto i te tono roa-roa o te hononga whakawhitiwhiti muka whatu, ka taea te whakamahi i nga EDFA hei whakakaha whakanui i te putanga o te kaiwhakawhiti whatu, he whakakaha whatu-a-raina me te muka whatu tae atu ki te whakahiato-mua i mua tata o te kaiwhiwhi, pera i te ahua o runga ake nei.
Ka taea te tohu ko nga EDFA i roto i te raina ka whakanohohia ki te 20-100 kiromita te tawhiti i waenga i te ahua o te ngaro o te muka.Ko te tohu whakauru whatu kei te 1.55 μm te roangaru, engari ko nga lasers papu e mahi ana i te 1.48 μm ranei 980 nm te roangaru.Ko te roa o te muka Erbium-doped he 10–50 m.
Hangaia Whakanui i roto i nga EDFA
Ka rite ki te korero i mua ake nei, ko te tikanga whakakaha i roto i te EDFA e ahu mai ana i runga i te tukunga whakaihiihi rite ki tera o te laser.Ko te kaha nui mai i te tohu papua whatu (i hangaia e tetahi atu taiaho) ka whakahihiri i nga katote erbium dopant (Er3+) i roto i te muka silica i te ahua o te kaha o runga.Ko te tohu raraunga whatu whakauru e whakaihiihi ana i te whakawhiti o nga katote Erbium hikaka ki te ahua o te kaha o raro, ka puta te iraruraru o nga whakaahua he rite te kaha, ara, he rite te roangaru ki tera o te tohu whatu whakauru.
Hoahoa taumata-ngao: Ko nga katote Erbium kore utu e whakaatu ana i nga taumata motuhake o te roopu hiko.I te wa e werohia ana nga katote Erbium ki roto i te muka silica, ka wehea ia taumata hiko ki etahi taumata e tata ana ki te hanga i tetahi roopu hiko.
1.4 Te tikanga whakakaha i roto i te EDFA
Ki te eke ki te hurihanga taupori, ka maminga nga katote Er3+ ki te taumata takawaenga 2. I roto i te tikanga autaki (980-nm te pamu), ka neke tonu nga katote Er3+ mai i te taumata 1 ki te taumata 3. Ka whai i te pirau kore-radiative ki te taumata 2, mai i kei reira ka taka ki te taumata 1, ka whakamararatia nga tohu whatu i te roangaru e hiahiatia ana o 1500–1600 nm.E mohiotia ana tenei ko te tikanga whakakaha taumata-3.
Mo etahi atu hua Erbium-doped, tena koa tirohia to maatau paetukutuku.
https://www.erbiumtechnology.com/erbium-laser-glasseye-safe-laser-glass/
Ī-mēra:devin@erbiumtechnology.com
WhatsApp: +86-18113047438
Waeatuhi: +86-2887897578
Tāpiri: No.23, Chaoyang huarahi, Xihe huarahi, Longquanyi distrcit, Chengdu,610107, Haina.
Wā Whakahōu: Hūrae-05-2022
