O le ā le EDFA Amplifier

O le EDFA (Erbium-doped Fiber Amplifier), na muamua faia i le 1987 mo le faʻaaogaina faapisinisi, o le optical amplifier sili ona faʻaaogaina i le DWDM system lea e faʻaaogaina ai le Erbium-doped fiber o se optical amplification medium e faʻamalosia saʻo ai faʻailoga. E mafai ai ona faʻateleina vave faʻailoga e tele galu, e masani lava i totonu o fusi e lua. O le tasi o le Conventional, poʻo le C-band, e tusa ma le 1525 nm i le 1565 nm, ma le isi o le Long, poʻo le L-band, e tusa ma le 1570 nm i le 1610 nm. I le taimi nei, e lua ona fusi pamu e masani ona faʻaaogaina, 980 nm ma le 1480 nm. O le fusi 980nm e maualuga atu le absorption cross-section e masani ona faʻaaogaina i le faʻaaogaina o le pisa maualalo, ae o le fusi 1480nm e maualalo ae lautele le absorption cross-section lea e masani ona faʻaaogaina mo amplifiers maualuga le malosi.

O le ata o loʻo mulimuli mai o loʻo faʻaalia auiliili ai le auala e faʻaleleia atili ai e le faʻamalosi EDFA ia faʻailoilo. A galue le faʻamalosi EDFA, e ofoina atu se pamu laser e 980 nm poʻo le 1480 nm. A maeʻa ona pasia e le pamu laser ma faʻailoilo ulufale i le coupler, o le a faʻateleina i luga o le alava Erbium-doped. E ala i le fegalegaleai ma ions doping, e mafai ona ausia le faʻateleina o le faʻailoilo. O lenei faʻamalosi uma-optical e le gata ina faʻaitiitia ai le tau ae faʻaleleia atili ai le lelei mo le faʻateleina o faʻailoilo opitika. I se aotelega, o le faʻamalosi EDFA o se laʻasaga taua i le talafaasolopito o alava opitika e mafai ona faʻateleina saʻo faʻailoilo ma le tele o galu i luga o le tasi alava, nai lo le faʻateleina o faʻailoilo opitika-eletise-optical.

O le Beijing Rofea Optoelectronics Co, Ltd o loʻo i le "Silicon Valley" a Saina - Beijing Zhongguancun, o se pisinisi tekonolosi maualuga ua tuuto atu i le auauna atu i faʻalapotopotoga suʻesuʻega i totonu ma fafo, faʻalapotopotoga suʻesuʻega, iunivesite ma tagata faigaluega suʻesuʻega faasaienisi faʻapisinisi. O la matou kamupani e masani lava ona auai i suʻesuʻega tutoʻatasi ma atinaʻe, mamanu, gaosiga, faʻatau atu oloa optoelectronic, ma tuʻuina atu fofo fou ma auaunaga faʻapolofesa, faʻapitoa mo tagata suʻesuʻe faasaienisi ma inisinia tau alamanuia. Ina ua mavae tausaga o le fouga tutoʻatasi, ua fausia ai se faasologa mauoa ma atoatoa o oloa photoelectric, lea e faʻaaogaina lautele i totonu o le munisipale, militeri, felauaiga, eletise, tupe, aʻoaʻoga, fomaʻi ma isi alamanuia. O penefiti tetele i le alamanuia, e pei o le faʻapitoa, eseese, faʻamatalaga, maualuga le lelei, auaunaga sili ona lelei. Ma i le 2016 na manumalo ai i le tusi faamaonia a le pisinisi tekonolosi maualuga a Beijing, e tele tusi faamaonia pateni, malosi malosi, oloa faʻatau atu i maketi i totonu ma fafo, faʻatasi ai ma lona faʻatinoga mautu ma sili atu e manumalo ai i viiga a tagata faʻaoga i totonu ma fafo!