Ha sebaka sa phetisetso se le telele haholo (ho feta 100 km), lets'oao la optical le tla ba le tahlehelo e kholo.Nakong e fetileng, hangata batho ba ne ba sebelisa li-optical repeater ho holisa lets'oao la optical.Sesebelisoa sa mofuta ona se na le meeli e itseng lits'ebetsong tse sebetsang.E nkeloe sebaka ke amplifier ea fiber ea optical.Molao-motheo o sebetsang oa optical fiber amplifier o bontšoa setšoantšong se ka tlase.E ka matlafatsa ka ho toba lets'oao la optical ntle le ho feta ts'ebetsong ea phetoho ea optical-electrical-optical.
Fibre amplifier e sebetsa joang?
Ha sebaka sa phetisetso se le telele haholo (ho feta 100 km), lets'oao la optical le tla ba le tahlehelo e kholo.Nakong e fetileng, hangata batho ba ne ba sebelisa li-optical repeater ho holisa lets'oao la optical.Sesebelisoa sa mofuta ona se na le meeli e itseng lits'ebetsong tse sebetsang.E nkeloe sebaka ke amplifier ea fiber ea optical.Molao-motheo o sebetsang oa optical fiber amplifier o bontšoa setšoantšong se ka tlase.E ka matlafatsa ka ho toba lets'oao la optical ntle le ho feta ts'ebetsong ea phetoho ea optical-electrical-optical.
Ho na le li-amplifiers tsa mofuta ofe?
1. Erbium-doped fiber amplifier (EDFA)
Erbium-doped fiber amplifier (EDFA) haholo-holo e entsoe ka faeba ea erbium-doped, mohloli oa leseli la pompo, optical coupler, optical isolator, le optical filter.Har'a tsona, fiber ea erbium-doped ke karolo ea bohlokoa ea ho hōlisa lets'oao la optical, e sebelisoang haholo ho finyella 1550 nm Band optical signal amplifier, ka hona, erbium-doped fiber amplifier (EDFA) e sebetsa hantle ka ho fetisisa sebakeng sa wavelength sa 1530 nm ho 1565 nm.
Amolemo:
Tšebeliso e phahameng ka ho fetisisa ea pompo ea matla (e fetang 50%)
E ka holisa ka kotloloho le ka nako e ts'oanang lets'oao la optical sehlopheng sa 1550 nm
Fumana ho feta 50 dB
Lerata le tlase phetisong ea sebaka se selelele
khaello
Erbium-doped fiber amplifier (EDFA) e kholoanyane
Sesebelisoa sena ha se khone ho sebetsa ka tšebelisano le lisebelisoa tse ling tsa semiconductor
2. Raman amplifier
Raman amplifier ke sesebelisoa se le seng se ka holisang mats'oao a mahlo sehlopheng sa 1292 nm ~ 1660 nm.Molao-motheo oa eona oa ts'ebetso o ipapisitse le phello e khothalelitsoeng ea ho hasana ea Raman ka har'a fiber ea quartz.Joalokaha ho bontšitsoe setšoantšong se ka tlase, ha leseli la pompo le huloa Ha leseli le fokolang la leseli ho Mann le fumana bandwidth le leqhubu le matla la pompo le fetisoa ka nako e le 'ngoe ka fiber ea optical, leseli le fokolang le tla matlafatsoa ka lebaka la phello ea ho hasana ea Raman. .
Amolemo:
Mefuta e mengata ea lihlopha tse sebetsang
E ka sebelisoa lits'ebetsong tse kentsoeng tsa fiber cabling ea single-mode
E ka tlatsetsa bofokoli ba erbium-doped fiber amplifier (EDFA)
Tšebeliso e tlase ea matla, crosstalk e tlase
khaello:
Matla a pompo a phahameng
Sistimi e rarahaneng ea taolo ea phaello
Lerata
3. Semiconductor optical fiber amplifier (SOA)
Semiconductor optical fiber amplifiers (SOA) e sebelisa lisebelisoa tsa semiconductor e le phaello ea mecha ea litaba, 'me tlhahiso ea bona ea optical signal le tlhahiso e na le liphahlo tse khahlanong le ho bonahatsa ho thibela ho nahanisisa ka sefahleho sa ho qetela sa amplifier le ho felisa phello ea resonator.
Amolemo:
molumo o monyane
Matla a fokolang a hlahisoang
The gain bandwidth e nyane, empa e ka sebelisoa ka lihlopha tse ngata tse fapaneng
E theko e tlase ho feta erbium-doped fiber amplifier (EDFA) mme e ka sebelisoa le lisebelisoa tsa semiconductor.
Lits'ebetso tse 'ne tse se nang moeli tsa ho feto-fetoha ha phalliso, ho feto-fetoha ha mekhahlelo e fapaneng, phetoho ea maqhubu le ho kopanya maqhubu a mane li ka phethahala.
khaello:
Ts'ebetso ha e phahame joalo ka erbium-doped fiber amplifier (EDFA)
Lerata le phahameng le phaello e tlaase
Nako ea poso: Sep-17-2021