Dab tsi yog attenuator hauv fiber ntau kho qhov muag?
Cov kho qhov muag kho qhov muag fiber txo qis lub zog kho qhov muag raws li kev zom zaub mov, nqus tau, xav txog, nthuav tawm, xa mus, deflection, diffraction, thiab kev tawg ntawm cov teeb liab kho qhov muag. Piv txwv li, rau kev zom zaub mov thiab nqus tau ntawm cov teeb pom kev zoo, teeb tsa lub kho qhov muag kom pom qhov dav ntawm qhov ua haujlwm ntawm lub teeb uas tuaj yeem zom thiab nqus tau hnub ci zog. Yog hais tias qhov kho qhov muag fiber nyob hauv thaj tsam no, nws yuav tsis cuam tshuam lub teeb thiab txo qhov xav tau echo xav txog. Raws li txoj hauv kev no, lub zog kho qhov muag tuaj yeem ua tiav. Qhov tshwm sim tiag tiag ntawm kev txo qis coefficient. Feem ntau, thev naus laus zis cais huab cua, tshem tawm cov tshuab txav mus los, thev naus laus zis thev naus laus zis, nqus cov txheej txheem iav thiab lwm yam thev naus laus zis tau siv los ua cov tshuab ua kom muaj fiber ntau kho qhov muag.
Qhov txo qis coefficient ntawm qhov kho qhov muag attenuator yog hom twg los ntawm 0 txog 65dB. Ntawm lawv, qhov txo qis coefficient lub zog ntawm cov khoom siv hluav taws xob ruaj khov ntawm kev ua lag luam ntawm theem no yog nyob nruab nrab ntawm 1 ~ 30dB. Fixed fiber attenuator yog ib hom fiber ntau attenuator, uas kho qhov ua kom lub zog poob qis ntawm qhov txo qis coefficient tus nqi. Feem ntau siv hauv kev sib tham hauv xov tooj cua, cov cuab yeej tshuaj xyuas qhov muag fiber, thaj chaw hauv cheeb tsam (LAN) thiab cable digital TV (CATV).
Kuj tseem muaj qhov sib txawv fiber ntau attenuator. Qhov ua kom qis qis qis ntawm qhov sib txawv ntawm qhov sib txawv fiber ntau tuaj yeem hloov kho, piv txwv li, los ntawm 0.5dB txog 20dB, lossis txawm tias 50dB. Qee qhov hloov pauv fiber ntau attenuators muaj kev daws teeb meem zoo heev, xws li 0.1dB lossis txawm tias 0.01dB. Daim ntawv thov: kho qhov muag faib kab, kho qhov muag fiber network system, kev siv hluav taws xob kho qhov muag fiber ntau qhov system, cable digital TV (CATV) system, ntev-nrug pob txha ntom ntom nthwv dej faib faib ua ntau qhov sib luag (DWDM), kho qhov muag ntxiv/poob multiplexer (OADM).
Ntawm lawv, cov kho qhov muag kho qhov muag fiber ntau attenuator muaj fiber ntau pigtail yam, hloov hom, thiab hom SPWM, uas tuaj yeem ua rau hauv FC, SC, ST, LC, MU thiab lwm yam kev cuam tshuam, thiab nws yooj yim rau siv hauv kev txuas txhua hnub. Feem ntau, ib tus neeg ua kom muaj fiber ntau muaj ob lub qhov (socket), txiv neej thiab poj niam, uas tuaj yeem yog txiv neej-poj niam lossis poj niam-poj niam. Tus txiv neej lub qhov (socket) txuas feem ntau yog siv los ntsaws rau hauv lub teeb liab txais ntawm lub tshuab khoom lossis lub khoos phis tawj ntawm lub hwj huam adapter tswj vaj huam sib luag, thiab tus poj niam txuas lub qhov (socket) yog siv los txuas cov hlua hluav taws xob sib txuas.
Hauv cov cuab yeej passive, daim ntawv thov ntawm cov kho qhov muag kho qhov muag pom muaj ntau heev, tsuas yog tom qab txuas thiab txuas txuas fiber ntau. Tus yuam sij los txiav txim siab qhov ua tau zoo ntawm qhov kho qhov muag qhov muag yog qhov ua kom pom qhov pom, poob qhov pom kev, ua kom pom tseeb poob, rov qab poob, thiab lwm yam.
