Ihame nogushira mubikorwa EDFA erbium-ikoporora fibre amplifier

Ihame no gushyira mu bikorwaEDFA erbium-yuzuye fibre amplifier

Imiterere shingiro yaEDFAerbium-dope fibre amplifier, igizwe ahanini nigikoresho gikora (metero icumi z'uburebure bwa dope ya quartz fibre, diameter yibanze ya microne 3-5, doping concentration (25-1000) x10-6), pompe yumucyo (990 cyangwa 1480nm LD), guhuza optique hamwe na optique ya optique. Itara ryerekana ibimenyetso na pompe birashobora gukwirakwira mu cyerekezo kimwe (co-pomping), icyerekezo gitandukanye (kuvoma inyuma), cyangwa ibyerekezo byombi (kuvoma byerekezo) muri fibre ya Erbium. Iyo itara ryibimenyetso hamwe nu mucyo wa pompe byinjijwe muri fibre ya erbium icyarimwe, ion ya erbium ishimishwa nurwego rwo hejuru (sisitemu yo murwego rwa gatatu) ikorwa nurumuri rwa pompe, kandi bidatinze kubora kugeza kurwego rushoboka. Iyo isubiye mubutaka munsi yibikorwa byurumuri rwibyabaye, foton ihuye numucyo wikimenyetso irasohoka, kugirango ikimenyetso cyongerwe. Ikwirakwizwa ryacyo ryihuta (ASE) rifite umuvuduko mwinshi (kugeza kuri 20-40nm) kandi rifite impinga ebyiri zihwanye na 1530nm na 1550nm.

Ibyiza byingenzi byaEDFA amplifierninyungu nyinshi, umurongo munini, imbaraga zisohoka cyane, pompe ikora neza, igihombo gito cyo kwinjiza, hamwe no kutumva leta ya polarisiyasi.

Ihame ryakazi rya erbium-dope fibre amplifier

Erbium-yuzuye fibre amplifier （EDFA Amashanyarazi meza） Igizwe ahanini na fibre ya erbium (hafi 10-30m z'uburebure) hamwe na pompe yumucyo. Ihame ryakazi ni uko fibre ya erbium itanga imirasire ikangurwa nigikorwa cyumucyo wapompa (uburebure bwa 980nm cyangwa 1480nm), kandi urumuri rwumucyo ruhinduka hamwe no guhindura ibimenyetso byinjira byinjira, bihwanye no kongera ibimenyetso byinjira mumucyo. Ibisubizo byerekana ko inyungu za Erbium-dope fibre amplifier isanzwe ari 15-40db, kandi intera ya relay irashobora kwiyongera kuri kilometero zirenga 100. Noneho, abantu ntibabura kubaza: ni ukubera iki abahanga batekereje gukoresha erbium ikoreshwa muri fibre amplifier kugirango bongere ubukana bwumuraba? Turabizi ko erbium ari ikintu kidasanzwe cyisi, kandi ibintu bidasanzwe byubutaka bifite imiterere yihariye yimiterere. Gukuraho ibintu bidasanzwe byisi mubikoresho bya optique byakoreshejwe igihe kinini kugirango tunoze imikorere yibikoresho bya optique, ibi rero ntabwo arimpanuka. Mubyongeyeho, kuki uburebure bwumuraba wa pompe yumucyo bwatoranijwe kuri 980nm cyangwa 1480nm? Mubyukuri, uburebure bwumurabyo wa pompe yumucyo burashobora kuba 520nm, 650nm, 980nm, na 1480nm, ariko imyitozo yerekanye ko uburebure bwumurambararo wa 1480nm pompe yumucyo wa laser ikora neza cyane, hagakurikiraho uburebure bwumurambararo wa 980nm.

Imiterere yumubiri

Imiterere shingiro ya erbium-yuzuye fibre amplifier （EDFA Optical Amplifier）. Hano hari akato ku byinjira byinjira nibisohoka, intego ni ugukora ibimenyetso bya optique inzira imwe. Umuyoboro wa pompe ufite uburebure bwa 980nm cyangwa 1480nm kandi bikoreshwa mugutanga ingufu. Igikorwa cya kupler ni uguhuza ibimenyetso byinjiza optique hamwe nu mucyo wa pompe muri fibre ya erbium, hanyuma ugahindura ingufu zumucyo wa pompe mukwinjiza optique binyuze mumikorere ya fibre erbium-dope, kugirango tumenye imbaraga zo kongera ingufu za signal optique. Kugirango ubone imbaraga zisumba izindi optique hamwe nurusaku rwo hasi rwurusaku, Erbium-dope fibre amplifier ikoreshwa mubikorwa ifata imiterere yimiterere ya pompe ebyiri cyangwa nyinshi za pompe hamwe na izitandukanya hagati kugirango zitandukane. Kugirango ubone inyungu nini kandi ishimishije yo kugorora, inyungu yungurura filteri yongeweho.

EDFA igizwe n'ibice bitanu by'ingenzi: Fibre Erbium-Dope fibre (EDF), Optical coupler (WDM), optique ya optique (ISO), Optical Filter, na Pomping Supply. Inkomoko ya pompe ikunze gukoreshwa harimo 980nm na 1480nm, kandi ayo masoko yombi ya pompe afite ubushobozi bwo kuvoma kandi akoreshwa cyane. 980nm pompe yumucyo utanga urusaku coefficient iri hasi; Amashanyarazi ya pompe 1480nm afite ubushobozi bwo kuvoma kandi arashobora kubona ingufu nini zisohoka (hafi 3dB hejuru ya 980nm yumucyo wa pompe).

akarusho

1. Uburebure bwumurongo wogukora burahuza nibura rya idirishya ryibanze rya fibre imwe.

2. Gukora neza. Kuberako ari fibre amplifier, biroroshye guhuza na fibre yohereza.

3. Gukoresha imbaraga nyinshi zo guhindura imikorere. Intandaro ya EDF ni ntoya kuruta iyo fibre yohereza, kandi itara ryerekana ibimenyetso hamwe nu mucyo wa pompe byoherezwa icyarimwe muri EDF, bityo ubushobozi bwa optique bukaba bwibanze cyane. Ibi bituma imikoranire hagati yumucyo ninyungu ziciriritse Er ion yuzuye cyane, iherekejwe nuburebure bukwiye bwa erbium-dope fibre, bityo imikorere yingufu zumucyo ni nyinshi.

4. Inyungu nyinshi, indangururamajwi nkeya, imbaraga nini zisohoka, umuhanda muto hagati yimiyoboro.

5. Inyungu zihamye ziranga: EDFA ntabwo yunvikana nubushyuhe, kandi inyungu ntaho ihuriye na polarisiyasi.

6. Inyungu yunguka ntigengwa na sisitemu biti ya sisitemu nimiterere yamakuru.

kubura

1. Ingaruka idafite umurongo: EDFA yongerera imbaraga optique yongerera imbaraga optique yatewe muri fibre, ariko nini nini nziza. Iyo imbaraga za optique zongerewe kurwego runaka, ingaruka zidafite umurongo wa fibre optique zizakorwa. Kubwibyo, mugihe ukoresheje optique ya fibre optique, hagomba kwitonderwa agaciro ko kugenzura umuyoboro umwe winjira wa fibre optique.

2. Inyungu yumurambararo uringaniye: urwego rwakazi rwa C-band EDFA ni 1530nm ~ 1561nm; Uburebure bwumurongo wa L-band EDFA ni 1565nm ~ 1625nm.

3. Kwunguka kwingana kutaringaniye: Kwunguka kwaguka kwa EDFA erbium-dope fibre amplifier ni nini cyane, ariko inyungu ya EDF ubwayo ntabwo iringaniye. Inyungu yo gushungura muyunguruzi igomba gukoreshwa kugirango igabanye inyungu muri sisitemu ya WDM.

4. Niba urumuri rwinjiza rwaciwe, kubera ko ioni erbium metastable ikomeza kwegeranya, iyo ibimenyetso byerekana urumuri bimaze kugaruka, ingufu zizasimbuka, bivamo urumuri rwinshi.

5. Igisubizo kuri optique yo kubaga ni ukumenya kugabanuka kwamashanyarazi ya optique (APR) cyangwa gukoresha amashanyarazi ya optique (APSD) mumikorere ya EDFA, ni ukuvuga ko EDFA ihita igabanya ingufu cyangwa igahita izimya amashanyarazi mugihe nta mucyo winjiza, bityo ugahagarika ibibaho byabaye.

Uburyo bwo gusaba

1. Kubera ko imbaraga z'ikimenyetso nyuma yo kuzamura umuyaga muri rusange ari nini, indangururamajwi n'inyungu zo kongera ingufu ntabwo biri hejuru cyane. Ifite imbaraga nini zisohoka.

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3. Imbere-Amplifier: Mbere yo gutandukana na nyuma yumurongo wongerewe umurongo, ikoreshwa mugukomeza ibimenyetso no kunoza ibyiyumvo byabakiriye (mugihe igipimo cya optique cyerekana-urusaku (OSNR) cyujuje ibisabwa, imbaraga nini zo kwinjiza zishobora guhagarika urusaku rwakiriwe ubwacyo kandi bikanonosora ibyakiriwe), kandi indangururamajwi ni nto cyane. Nta kintu kinini gisabwa ku mbaraga zisohoka.