Halayen Amplifier na EDFA

Halaye naAmplifier na EDFA
Ka'idar aiki na amplifiers na fiber tana kama da ta lasers masu ƙarfi. Matakan kuzari masu dacewa, sha da kuma samun spectra na ions na erbium (Er ³ ⁺) a cikin zaruruwan gani na quartz an nuna su a Hoto na 2. Abubuwan da ba su da tsari na quartz suna faɗaɗa matakan kuzari na ions na erbium zuwa madaukai, kuma ana iya amfani da sauye-sauye da yawa don famfo ions na erbium, tare da mafi kyawun tsawon famfo shine 980 nm da 1480 nm.
Tsawon tsayin aiki na EDFA Amplifier ya faɗi daidai a cikin mafi kyawun kewayon tsawon rai na 1330-1600nm don sadarwa ta fiber optic. An yi amfani da EDFA Amplifier da ke aiki a cikin C-band (1530-1565nm) tare da mafi ƙarancin taga asarar fiber sosai. Domin cikakken amfani da albarkatun bandwidth na zare na gani, mutane kuma sun himmatu wajen haɓaka EDFAs a cikin L-band (1570-1610nm). L-band yana nan a wutsiyar EDFA gain spectrum, don haka dole ne EDFAs na L-band su yi amfani da zare masu tsayi da ƙarfin famfo mai girma, ko kuma su yi amfani da zare masu doped sosai.
Na'urar ƙara haske ta EDFAyana da babban riba (fiye da 30-50dB) kuma yana ba da faifan riba mai faɗi akan faɗin mitar mita (har zuwa 30nm), wanda hakan ya dace da siginar ƙara girma a cikin tashoshi da yawa na gani, musamman a cikin tsarin multiplexing mai yawa na tsawon rai (DWDM). Ƙarancin hayaniya (4-8dB), yana kusantar iyakar adadi. Lokacin da aka yi amfani da shi ga tsarin WDM, ana rage magana tsakanin tashoshi kuma ana iya haɗa amplifiers da yawa. Yana da ƙarfin fitarwa mai yawa (10-20 dBm), ana iya amfani da shi azaman amplifier wuta bayan mai watsawa don ƙara nisan watsawa ko adadin nodes na gani da aka ware ba tare da layukan relay ba. Ƙarfin famfon da ake buƙata yana da ƙasa (dubun milliwatts). Ribar ba ta dogara da yanayin polarization na zare ba, don haka yana da kyakkyawan kwanciyar hankali. Sauƙin haɗawa da zaruruwan gani na watsawa, tare da ƙarancin asarar haɗin gwiwa (<1dB). Banda tushen famfon, EDFANa'urar ƙara haske ta ganiya ƙunshi sassa marasa aiki. Saboda haka, idan aka kwatanta da na'urorin lantarki masu rikitarwa da tsada, farashin tsarin yana raguwa sosai kuma an inganta amincinsa.
Bugu da ƙari, halayen faɗaɗawa naEDFAAmplifier ba ya dogara da tsarin bit rate da tsarin bayanai, don haka yana iya faɗaɗawa da watsa bayanai na dijital da analog. Rashin kyawun amplifier fiber mai erbium sune: babban girma; Tsawon rayuwar tushen famfo ba shi da tsawo; Ba za a iya haɗa shi da wasu na'urori ba, wanda ke iyakance amfani daamplifier fiber mai amfani da erbiuma cikin haɗin gwiwar optoelectronic (OEIC). Bugu da ƙari, bandwidth na ribar EDFA Amplifier yana rufe kawai wani ɓangare na taga ƙarancin asarar fiber mai yanayin quartz guda ɗaya, wanda ke iyakance adadin tashoshin tsawon rai da zaren zai iya ɗauka, wanda kuma shine gazawarsa.