Tlhaloso: Erbium-doped fiber Amplifier EDFA Optical Amplifier

Tlhaloso: Erbium-doped fiber AmplifierEDFA Optical Amplifier

Erbium-doped optical fiber amplifier (EDFA, ke hore, amplifier ea optical signal e nang le Er3 + e kenngoa mokokotlong oa fiber ka lets'oao) ke amplifier ea pele ea optical e entsoeng ke Univesithi ea Southampton ka 1985, 'me ke e' ngoe ea liqapi tse kholo ka ho fetisisa tsa puisano ea fiber. Erbium-doped fiber ke mofuta oa fiber e nang le li-ion tse nyane tse sa tloaelehang tsa Earth element erbium (Er) fiber ea quartz, e leng motheo oaErbium-doped fiber amplifier. Ho tloha bofelong ba lilemo tsa bo-1980, ho entsoe likhatelo-pele tse kholo liphuputsong tsa li-amplifiers tsa erbium-doped fiber. Theknoloji ea WDM e ekelitse haholo bokhoni ba puisano ea optical fiber. Ke amplifier ea optical e sebelisoang haholo ho feta puisanong ea fiber.

Kopo: Optical fiber amplifier ke sesebelisoa sa optical amplifier se holisang ka kotloloho lets'oao la optical ho sistimi ea puisano ea fiber. Tsamaisong ea puisano e sebelisang fiber ea optical, ke theknoloji e matlafatsang ka ho toba letšoao la optical ntle le ho fetola letšoao la optical ho letšoao la motlakase. Erbium-doped fiber amplifier (EDFA Optical Amplifier, ke hore, optical signal amplifier e nang le erbium ion Er3 + fiber core ka lets'oao) ke amplifier ea pele ea optical e ntlafalitsoeng ke Univesithi ea Southampton United Kingdom le Univesithi ea Tohoku ea Japane, ke e 'ngoe ea liqapi tse kholo ka ho fetisisa tsa puisano ea fiber. Erbium-doped fiber ke mofuta oa fiber e nang le li-ion tse nyane tse sa tloaelehang tsa Earth element erbium (Er) ka har'a fiber ea quartz, e leng motheo oa Erbium-doped fiber amplifier. Ho tloha bofelong ba lilemo tsa bo-1980, ho entsoe likhatelo-pele tse kholo liphuputsong tsa li-amplifiers tsa erbium-doped fiber. Theknoloji ea WDM e ekelitse haholo bokhoni ba puisano ea optical fiber. Ke amplifier ea optical e sebelisoang haholo ho feta puisanong ea fiber.

Paramethara ea motheo

Lebitso la lentsoe: Erbium-doped fiber amplifier

Nako e amanang:Optical Amplifier

Li-quartz fiber tse nang le likarolo tse sa tloaelehang tsa lefats'e (tse kang Nd, Er, Pr, Tm, joalo-joalo) li ka theha tsamaiso ea laser ea mekhahlelo e mengata, 'me ka ho toba e hōlise leseli la pontšo ea ho kenya tlas'a ketso ea leseli la pompo. Ka mor'a ho fana ka maikutlo a nepahetseng, laser fiber e thehoa. Bophahamo ba ts'ebetso ea ND-doped fiber amplifier ke 1060nm le 1330nm, empa nts'etsopele le ts'ebeliso ea eona li na le moeli ka lebaka la ho kheloha boema-kepe bo nepahetseng ba puisano ea fiber le mabaka a mang. Maqhubu a ts'ebetso ea EDFA le PDFA a tahlehelo e tlaase ka ho fetisisa (1550nm) le zero dispersion wavelength (1300nm) fensetere ea optical fiber communication ka ho latellana, 'me TDFA e sebetsa ho S-band, e loketseng haholo bakeng sa lisebelisoa tsa optical fiber communication system. Haholo-holo EDFA, tsoelo-pele e potlakileng ka ho fetisisa, e bile e sebetsang.

Motheong oa nts'etsopele ea erbium-doped fiber, li-amplifiers tse ngata tse ncha li tsoela pele ho hlaha. Ka mohlala, dual-band fiber amplifier (DBFA) e thehiloeng ho erbium-doped fiber ke sebuela-hōle optical amplifier, 'me Broadband e ka koahela hoo e batlang e le bophara ba maqhubu a mangata a mangata a mangata (WDM). Sehlahisoa se tšoanang ke ultra-wideband Optical amplifier (UWOA), e nang le bandwidth ea tšireletso ho holisa likanale tse fihlang ho 100 oavelength ka faeba e le 'ngoe.

Tšebeliso e sebetsang

Tšebeliso ea Erbium-doped fiber amplifier(EDFA Amplifier) ​​tsamaisong e tloaelehileng ea puisano ea optical fiber e ka boloka li-Repeaters tse ngata tsa optical, 'me sebaka sa relay se eketsehile haholo, e leng sa bohlokoa bo boholo bakeng sa tsamaiso ea trunk ea nako e telele.

Lisebelisoa tsa eona tsa mantlha li kenyelletsa:

1, e ka sebelisoa e le amplifier ea sebaka se bobebe. Traditional electronic fiber optic Repeaters na le mefokolo e mengata. Ka mohlala, ha lets'oao la dijithale le lets'oao la analog li fetoleloa ho tse ling, motho ea pheta-phetang o lokela ho fetoloa ka tsela e nepahetseng; Ha lisebelisoa li fetoha ho tloha ka lebelo le tlaase ho ea ho lebelo le phahameng, motho ea pheta-pheta o lokela ho nkeloa sebaka ka tsela e nepahetseng. Fetisetsa feela bolelele bo tšoanang ba maqhubu a leqhubu la leseli, 'me sebopeho se rarahane, se theko e boima, joalo-joalo. Li-amplifiers tsa Erbium-doped fiber li hlōla mefokolo ena, eseng feela hore ha lia tlameha ho fetoha ka phetoho ea mokhoa oa pontšo, empa hape ha li hloke ho nkeloa sebaka ha thepa e atolosoa kapa e sebelisoa bakeng sa multiplexing ea optical wavelength division multiplexing.

2, e ka sebelisoa e le amplifier ea optical transmitter le preamplifier ea optical receiver. Joalo ka amplifier ea poso ea transmitter ea optical, matla a phetiso ea laser a ka eketsoa ho tloha ho 0db ho ea ho +10db. Ha e sebelisoa e le preamplifier ea optical receiver, kutloisiso ea eona le eona e ka ntlafatsoa haholo. Ka hona, ke li-amplifiers tse 1-2 feela tsa erbium-doped tse behiloeng moleng, 'me sebaka sa phetisetso ea matšoao se ka eketsoa ka 100-200km.

Ho feta moo, erbium-doped fiber amplifier (EDFA Amplifier) ho rarolla bothata. Melemo e ikhethang ea li-amplifiers tsa Erbium-doped fiber li lemohuoe ke lefats'e, 'me li se li sebelisoa haholo le ho feta. Leha ho le joalo, li-amplifiers tsa Erbium-doped fiber le tsona li na le mefokolo e itseng. Ka mohlala, puisanong ea nako e telele e ke ke ea e-ba holimo le tlaase, ho kopana le khoebo ea seteishene ho thata haholoanyane, ha ho bonolo ho fumana liphoso, bophelo ba mohloli oa leseli la pompo ha bo telele, ka tsoelo-pele e tsoelang pele ea theknoloji ea puisano ea fiber, mathata ana a tla rarolloa ka mokhoa o khotsofatsang.