Bayani: Fiber Amplifier EDFA Optical Amplifier

Bayani: Amplifier fiber-doped ErbiumEDFA Optical Amplifier

erbium-doped Optical fiber amplifier (EDFA, Wato na'urar siginar siginar gani tare da Er3 + doped a cikin fiber core ta hanyar siginar) shine farkon na'urar amplifier da Jami'ar Southampton ta kirkira a cikin 1985, kuma yana daya daga cikin manyan abubuwan kirkire-kirkire a cikin sadarwar fiber na gani. Erbium-doped fiber wani nau'i ne na fiber tare da ƙaramin adadin ions erbium (Er) da ba kasafai ba a cikin fiber quartz, wanda shine ainihin tushenerbium-doped fiber amplifier. Tun daga ƙarshen 1980s, an sami babban ci gaba a cikin binciken erbium-doped fiber amplifiers. Fasahar WDM ta ƙara ƙarfin sadarwar fiber na gani sosai. Ita ce mafi yawan amfani da na'urar firikwensin gani a cikin sadarwar fiber na gani.

Aikace-aikace: Optical fiber amplifier na'urar haɓakawa ce ta gani wacce ke haɓaka siginar gani kai tsaye a cikin tsarin sadarwar fiber na gani. A tsarin sadarwa ta hanyar amfani da fiber na gani, fasaha ce da ke haɓaka siginar gani kai tsaye ba tare da canza siginar gani zuwa siginar lantarki ba. Erbium-doped fiber amplifier (EDFA Optical Amplifier, wato, siginar siginar gani tare da erbium ion Er3 + a cikin fiber core ta hanyar siginar) shine na'urar haɓakar gani ta farko da Jami'ar Southampton a Burtaniya da Jami'ar Tohoku ta Japan suka kirkira, yana ɗaya daga cikin manyan ƙirƙira a cikin sadarwar fiber na gani. Erbium-doped fiber wani nau'i ne na fiber tare da ƙaramin adadin ions na erbium (Er) da ba kasafai ba a cikin fiber quartz, wanda shine ainihin ma'aunin firam na Erbium-doped fiber amplifier. Tun daga ƙarshen 1980s, an sami babban ci gaba a cikin binciken erbium-doped fiber amplifiers. Fasahar WDM ta ƙara ƙarfin sadarwar fiber na gani sosai. Ita ce mafi yawan amfani da firam ɗin gani a cikin sadarwar fiber na gani.

Siga na asali

Sunan kalma: Erbium-doped fiber amplifier

Kalmar da ke da alaƙa:Amplifier na gani

Ma'adini fiber doped tare da rare duniya abubuwa (kamar Nd, Er, Pr, Tm, da dai sauransu) zai iya samar da Multi-mataki Laser tsarin, da kuma kai tsaye ƙara da shigar da hasken siginar a karkashin aikin famfo haske. Bayan samar da amsa mai dacewa, an kafa Laser fiber. Tsawon tsayin aiki na ND-doped fiber amplifier shine 1060nm da 1330nm, amma haɓakarsa da aikace-aikacensa yana iyakance saboda karkacewa daga mafi kyawun tashar sadarwa ta fiber da wasu dalilai. The aiki wavelengths na EDFA da PDFA ne a cikin mafi ƙasƙanci asara (1550nm) da sifili watsawa wavelength (1300nm) taga Tantancewar fiber sadarwa bi da bi, da TDFA aiki a cikin S-band, wanda shi ne sosai dace da Tantancewar fiber sadarwa tsarin aikace-aikace. Musamman EDFA, mafi saurin ci gaba, ya kasance mai amfani.

Dangane da ci gaban fiber na erbium-doped, yawancin sabbin filayen fiber na ci gaba da bayyana. Misali, DBFA mai haɓaka fiber na dual-band (DBFA) wanda ya dogara da erbium-doped fiber shine ƙararrawa na gani na faɗaɗa, kuma mai watsa shirye-shiryen na iya rufe kusan dukkanin bandwidth na rarraba tsawon zango (WDM). Irin wannan samfurin shine ultra-wideband Optical amplifier (UWOA), wanda ke da bandwidth na ɗaukar hoto don haɓaka har zuwa tashoshi na tsayin igiyoyi 100 a cikin fiber guda ɗaya.

Aikace-aikace na aiki

Aikace-aikacen firikwensin fiber na Erbium-doped (EDFA Amplifier) ​​a cikin tsarin sadarwa na dijital na fiber na yau da kullun na iya adana yawancin Maimaitawa na gani, kuma nisa mai nisa yana ƙaruwa sosai, wanda ke da mahimmanci ga tsarin gangar jikin USB mai nisa.

Babban aikace-aikacen sa sun haɗa da:

1, ana iya amfani dashi azaman amplifier nesa nesa. Fiber optic Repeaters na gargajiya na lantarki suna da iyakoki da yawa. Misali, lokacin da aka canza siginar dijital da siginar analog zuwa juna, ya kamata a canza mai maimaita daidai; Lokacin da kayan aiki suka canza daga ƙananan gudu zuwa babban gudu, ya kamata a maye gurbin mai maimaita daidai. Kawai aika da tsayin siginar haske iri ɗaya, kuma tsarin yana da rikitarwa, tsada, da sauransu. Erbium-doped fiber amplifiers sun shawo kan waɗannan gazawar, ba wai kawai ba dole ba ne su canza tare da canjin yanayin sigina ba, amma kuma ba sa buƙatar maye gurbin lokacin da aka faɗaɗa kayan aikin ko amfani da su don rarraba raƙuman raƙuman gani na gani.

2, ana iya amfani da shi azaman ƙararrawa mai watsawa na gani da kuma preamplifier mai karɓa na gani. A matsayin amplifier na na'urar watsawa na gani, ana iya ƙara ƙarfin watsa na'urar daga 0db zuwa +10db. Lokacin da aka yi amfani da shi azaman preamplifier na mai karɓar gani, kuma ana iya haɓaka hankalinsa sosai. Sabili da haka, kawai 1-2 erbium-doped amplifiers an saita akan layi, kuma ana iya ƙara nisan watsa siginar da 100-200km.

Bugu da ƙari, erbium-doped fiber amplifier (Amplifier EDFA) don magance matsalar. Abubuwan fa'idodi na musamman na masu haɓaka fiber na Erbium-doped duniya an gane su, kuma an ƙara yin amfani da su sosai. Koyaya, erbium-doped fiber amplifiers shima yana da wasu iyakoki. Misali, a cikin sadarwa mai nisa ba zai iya zama sama da kasa ba, tuntuɓar kasuwancin tashar yana da wahala, ba a sami matsala cikin sauƙi ba, rayuwar tushen hasken wutar lantarki ba ta daɗe ba, tare da ci gaba da ci gaban fasahar sadarwar fiber na gani, waɗannan matsalolin za a warware su cikin gamsuwa.