Auau-kotahi muka-katoaReera DFB
Te hoahoa ara whatu
Ko te roangaru pokapū o te taiaho muka DFB tikanga he 1550.16nm, ā, ko te ōwehenga whakakore taha-ki-taha he nui ake i te 40dB. I te mea ko te whānui rārangi 20dB o teDFB muka taiahoko te 69.8kHz, e mōhiotia ana ko tōna whānui rārangi 3dB ko te 3.49kHz.
Whakaahuatanga ara whatu
1. Pūnaha taiaho auau-kotahi
Ko te ara whatu he mea tito mai i ngā wāhanga whatu kore mahi pērā i te 976 nm i papuhiarēseri, te whatanga nekehanga-wāhanga π, te muka i pania ki te erbium, me te whakarea wehewehe roangaru. Ko te kaupapa mahi ko te rama papu i hangaia e te taiaho papu 976 nm ka tukuna mā te parenga papu ka wehea kia rua ngā ara. 20% o te rama papu ka haere mā te pito 980nm o te whakarea wehewehe roangaru 1550/980nm ka tomo ki te whatanga nekehanga-wāhanga π. Ka honoa te taiaho pūtake purapura putanga ki te pito 1550 nm o te 1550/980nm WDM i muri i te haere mā te wehewehe muka. 80% o te rama papu ka honoa mā te whakarea wehewehe roangaru 1550/980 nm ki roto i te muka EDF 2 m i pania ki te erbium hei whakawhiti pūngao, ka tutuki ai te whakanui mana taiaho.
Hei whakamutunga, ka tutuki te putanga taiaho mā te ISO. Ka honoa te taiaho putanga ki te ine ira (OSA) me te mita mana whatu (PM) hei aroturuki i te ine ira putanga taiaho me te mana taiaho. Ka honoa ngā wāhanga katoa o te ara whatu o te pūnaha katoa e te hononga honohono muka whatu, ka tutuki ai he hanganga pūnaha muka whatu katoa me te roa o te kōhao tata ki te 10 mita. Ko te koropiko o te pūnaha ine whānui raina he mea tito mai i ēnei taputapu e whai ake nei: e rua ngā hononga muka whatu 3 dB, he raina whakaroa muka whatu aratau-kotahi SM-28e 50 km, he 40 MHzpūwhakarerekētanga oro-whatu, me tētahipūoko whakaahuame te tātaritanga whānuitanga.
2. Ngā tawhā taputapu:
EDF: Kei roto i te roopu C te roangaru whakahaere, ko te āputa tau ko 0.23, ko te tihi mimiti ko 1532 nm, ko te uara noa ko 33 dB/m, ā, ko te ngaronga whakarewa ko 0.2 dB.
Parenga papu: Ka taea e ia te whakarato i te parenga papu i roto i te roopu 800 ki te 2000 nm, me te roangaru pokapū o te 976 nm me te kaha whakahaere mana o te 1 W.
Hononga muka whatu: Ka tutuki i a ia te tohatoha, te whakakotahi rānei o te mana tohu whatu. Hononga muka whatu 1*2, me te ōwehenga wehewehe o te 20:80%, he roangaru mahi o te 976nm, me te aratau kotahi.
Pūwhakarea wehewehenga roangaru: Ka taea te whakakotahi me te wehewehe i ngā tohu whatu e rua o ngā roangaru rerekē, 980/1550 nm WDM. Ko te muka i te pito papu ko Hi1060, ā, ko te muka i te pito noa me te pito tohu ko SMF-28e.
Kaiwhakawehe muka whatu: Ka ārai i te pūtake mārama kei pāngia kinotia e te mārama whakaata whakamuri, me te roanga ngaru mahi o te 1550nm, te kaiwhakawehe bipolar, me te mana whatu mōrahi o te 1W.
Wā tuku: Hepetema-08-2025