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Nga momo whakarei muka

Mena he roa rawa te tawhiti whakawhiti (neke atu i te 100 km), ka nui te ngaronga o te tohu whatu. I nga wa o mua, i whakamahia noa e nga taangata nga taarua taapiri hei whakanui i te tohu whatu. Ko tenei momo taputapu he tino taapiri kei roto i nga whakamahinga whaihua. I whakakapihia e te amplifier muka whatu. Ko te kaupapa mahi mo te whakahiato muka whatu e whakaaturia ana i te ahua i raro iho nei. Ka taea e ia te whakanui ake i te tohu aukati me te kore e huri i te waahanga o te whakawhiti-hiko-hiko-whatu.

 Me pehea te mahi a te kaita o te muka?

Mena he roa rawa te tawhiti whakawhiti (neke atu i te 100 km), ka nui te ngaronga o te tohu whatu. I nga wa o mua, i whakamahia noa e nga taangata nga taarua taapiri hei whakanui i te tohu whatu. Ko tenei momo taputapu he tino taapiri kei roto i nga whakamahinga whaihua. I whakakapihia e te amplifier muka whatu. Ko te kaupapa mahi mo te whakahiato muka whatu e whakaaturia ana i te ahua i raro iho nei. Ka taea e ia te whakanui ake i te tohu aukati me te kore e huri i te waahanga o te whakawhiti-hiko-hiko-whatu.

He aha nga momo whakarei muka kei reira?

1. Whakaoho muka Erbium-doped (EDFA)

Ko te kaiwhakaputa muka Erbium-doped (EDFA) te nuinga o te muka erbium-doped, te puna rama papu, te kaiwhakarato whatu, te kaitautoko whatu, me te taatari whatu. I waenga i a ratau, ko te muka erbium-doped tetahi waahanga nui o te whakarahinga tohu whatu, e whakamahia ana kia tutuki te tohu whakanui whatu 1550 nm Band, na reira, he pai te whakakoi o te muka whakakii (EDFA) i te whangai roangaru o te 1530 nm ki 1565 nm

Apainga:

Te kaha whakamahi i te mana papu (nui ake i te 50%)

Ka taea te whakarahi i te tohu whatu i te raina 1550 nm

Whiwhi neke atu i te 50 dB

He iti te haruru o te whakawhiti tawhiti

hapa

Erbium-doped fiber amplifier (EDFA) he nui ake

Kaore e taea e enei taputapu te mahi ngatahi me etahi atu taputapu semiconductor

2. Raman amplifier

Ko te kaitautoko Raman anake te taputapu ka taea te whakanui i nga tohu whatu i te raina 1292 nm ~ 1660 nm. Ko tana kaupapa mahi e ahu mai ana i te whakaohooho a Raman i te paanga quartz. E whakaatuhia ana i te ahua i raro ake nei, ka toia te maama o te papu Ka tohaina te tohu marama ngoikore i te kaha o te bandwidth a Mann me te ngaru marama papu kaha i roto i te muka whatu, ka kaha ake te tohu rama ngoikore na te mea kua marara a Raman. .

Apainga:

Te whanui o nga roopu e tika ana

Ka taea te whakamahi hei whakauru i nga tono arai taapiri-muka kotahi

Ka taea te taapiri i nga ngoikoretanga o te erbium-doped fiber amplifier (EDFA)

Iti te kohi mana, crosstalk iti

hapa:

Te kaha papu teitei

Te punaha whakahaere riro uaua

Ngongoro

3. Semiconductor muka whatu (SOA)

Semiconductor ampliciers fiber optic (SOA) whakamahi rauemi semiconductor hei taonga papahono, me a raatau tohu tohu whakaputa me te whakaputa he panui anti-whakaata hei aukati i te whakaata i te mata mutunga o te whakakaha me te whakakore i te paanga o te oro.

Apainga:

rōrahi iti

Te mana whakaputa iti

He iti noa te bandwidth bandwidth, engari ka taea te whakamahi i roto i nga roopu rereke

He iti ake i te erbium-doped fiber amplifier (EDFA) ka taea te whakamahi me nga taputapu semiconductor

E wha nga mahi kore-raina o te whakawhitinga whakawhiti-whiwhi, te whakawhiti i te waahanga, te huri i te roangaru me te whakaranu e wha-ngaru ka kitea

hapa:

Ko te mahi kaore i teitei ake i te erbium-doped fiber amplifier (EDFA)

He haruru nui, he iti te whiwhinga


Te wa tuku: Sep-17-2021