Na'urar amplifiers a fagen sadarwar fiber na gani
An na gani amplifierna'ura ce da ke haɓaka siginar gani. A fagen sadarwa na fiber optic, galibi yana taka rawa kamar haka: 1. Haɓaka da haɓaka ƙarfin gani. Ta hanyar sanya amplifier na gani a ƙarshen gaban mai watsawa na gani, ana iya ƙara ƙarfin gani da ke shiga fiber. 2. Ƙaddamar da faɗakarwa ta kan layi, maye gurbin masu maimaitawa a cikin tsarin sadarwar fiber na gani; 3. Preamplification: Kafin na'urar gano hoto a ƙarshen karɓa, an riga an haɓaka siginar haske mai rauni don haɓaka ƙwarewar karɓa.
A halin yanzu, na'urorin da aka karɓa a cikin sadarwa na fiber Optical sun ƙunshi nau'ikan nau'ikan: 1. Semiconductor Optical amplifier (SOA Optical amplifier)/Semiconductor Laser amplifier (SLA Optical amplifier); 2. Rare ƙasa-doped fiber amplifiers, kamar koto-doped fiber amplifiers (EDFA Optical amplifier), da dai sauransu 3. Na'urorin da ba na kan layi ba, kamar fiber Raman amplifiers, da dai sauransu. Wannan taƙaitaccen gabatarwa ne bi da bi.
1.Semiconductor Optical amplifiers: A karkashin daban-daban aikace-aikace yanayi da kuma daban-daban karshen fuska tunani, semiconductor Laser iya samar da daban-daban na semiconductor Tantancewar amplifiers. Idan tuƙi na Laser semiconductor ya yi ƙasa da bakin kofa, wato, ba a samar da laser ba, a wannan lokacin, ana shigar da siginar gani zuwa gefe ɗaya. Muddin mitar wannan siginar na gani yana kusa da cibiyar leser ɗin, za a ƙara haɓakawa da fitarwa daga ɗayan ƙarshen. Irin wannansemiconductor na gani amplifierana kiransa Fabry-Perrop nau'in amplifier na gani (FP-SLA). Idan Laser ya kasance mai ban sha'awa a sama da bakin kofa, shigar da siginar gani mai rauni mai nau'in yanayi guda ɗaya daga ƙarshen ɗaya, muddin mitar wannan siginar na gani yana cikin bakan wannan lasar multimode, siginar na gani za a ƙara girma kuma a kulle shi zuwa wani yanayi. Irin wannan amplifier na gani ana kiransa nau'in amplifier mai kulle-kulle (IL-SLA). Idan iyakar biyu na wani semiconductor Laser suna da madubi mai rufi ko evaporated tare da Layer na anti-reflection film, yin ta watsi sosai kananan da kuma kasa samar da wani Fabry-Perrow resonant rami, a lokacin da Tantancewar siginar wucewa ta cikin aiki waveguide Layer, shi za a kara girma yayin tafiya. Don haka, ana kiran irin wannan nau'in amplifier na gani da ake kira Traveling Wave type Optical Amplifier (TW-SLA), kuma ana nuna tsarinsa a cikin adadi mai zuwa. Saboda bandwidth nau'in amplifier na igiyar tafiya yana da umarni uku girma fiye da na Fabry-Perot nau'in amplifier, kuma bandwidth ɗin sa na 3dB zai iya kaiwa 10THz, yana iya haɓaka siginar gani na mitoci daban-daban kuma yana da matukar alƙawarin haɓakawa na gani.
2. Bait-doped fiber amplifier: Ya ƙunshi sassa uku: Na farko shi ne zaren doped mai tsayi mai tsayi daga mita da yawa zuwa dubun mita. Waɗannan ƙazanta galibi ions ne na ƙasa da ba kasafai ba, waɗanda ke samar da kayan kunna laser; Na biyu shine tushen famfo na Laser, wanda ke ba da makamashi na tsawon madaidaicin raƙuman raƙuman ruwa don tada ion ɗin ƙasa da ba kasafai ba don cimma haɓakar haske. Na uku shine ma'aurata, wanda ke ba da damar famfo haske da hasken sigina don ma'aurata cikin abin kunna fiber na gani na gani. Ka'idar aiki na ƙarar fiber yana kama da na Laser mai ƙarfi. Yana haifar da juyewar barbashi lamba jihar rarraba a cikin Laser-kunna abu da kuma haifar da kara kuzari radiation. Don ƙirƙirar barga barbashi lambar inversion jihar rarraba, fiye da biyu makamashi matakan ya kamata a hannu a cikin Tantancewar mika mulki, yawanci uku-mataki da hudu tsarin tsarin, tare da ci gaba da samar da makamashi daga famfo tushen. Domin samar da makamashi yadda ya kamata, tsawon tsawon famfo photon ya kamata ya zama guntu fiye da na laser photon, wato makamashin famfo photon ya kamata ya fi na laser photon. Bugu da ƙari kuma, kogon resonant yana samar da kyakkyawan ra'ayi, don haka ana iya samar da amplifier laser.
3. Masu kare Fib na Fir Fir: Amplifiers Fir Cir Diplifiers da Amplifiers Erbium Fallasa a cikin rukuni na Amsoshin Fib Amplifiers. Duk da haka, tsohon yana amfani da tasirin ma'adini na ma'adini, yayin da na karshen yana amfani da erbium-doped quartz fibers don yin aiki akan kafofin watsa labaru masu aiki. Filayen gani na ma'adini na yau da kullun za su haifar da tasirin da ba na kan layi ba a ƙarƙashin aikin ƙarfin famfo mai ƙarfi na tsayin raƙuman raƙuman ruwa masu dacewa, kamar haɓakar Raman watsawa (SRS), ƙarfafawar watsawar Brillouin (SBS), da tasirin haɗaɗɗun raƙuman ruwa huɗu. Lokacin da aka watsa siginar tare da fiber na gani tare da hasken famfo, ana iya ƙara hasken siginar. Don haka, suna samar da fiber Raman amplifiers (FRA), Brillouin amplifiers (FBA), da na'urori masu auna firikwensin, duk abin da ake rarraba fiber amplifiers.
Takaitawa: Hanyar ci gaban gama gari na duk na'urorin haɓakawa na gani shine riba mai girma, babban ƙarfin fitarwa, da ƙaramin amo.
Lokacin aikawa: Mayu-08-2025