Dab Tsi Yog Cov Fiber Optic Attenuators
Lub ntsej muag fiber ntau ntawm lub ntsej muag , tseem hu ua lub ntsej muag kho qhov muag, simulates poob qhov yuav tshwm sim los ntawm lub sijhawm ntev ntawm fiber. Feem ntau, cov khoom siv no ua lub tshuab kuaj txais. Thaum lub ntsej muag kho qhov muag tuaj yeem simulate qhov pom kev tsis pom ntawm lub sijhawm txuas ntxiv ntawm cov fiber ntau, nws tsis tuaj yeem ua qhov cuam tshuam qhov kev tawg uas yuav tshwm sim los ntawm cov xov paj ntev ntev.
Tso nws yooj yim, rau lub fiber ntau qhov chaw txais, lub teeb pom kev ntau dhau yuav ua rau nws dhau thiab ua rau qhov yuam kev tsis raug. Txhawm rau kom ua tiav qhov zoo tshaj plaws kev ua yuam kev piv (BER), lub teeb hluav taws xob yuav tsum raug txo. Fiber optic attenuators ua tau raws li qhov xav tau txig. Qhov no yuav tshwm sim thaum lub transmitter xa ntau zog rau piv txwv ib zaug lub transmitter tsuas yog ib yam nkaus thiab ze rau ntawm lub txais.
Npaum li cas ua cov Fiber Attenuator Ua Haujlwm?
Attenuators zoo ib yam li koj looj tsom iav, uas nqus lub zog ntxiv lub teeb thiab tiv thaiv koj lub qhov muag kom tsis pom kev. Attenuators nquag muaj qhov ua haujlwm yoj qhov ntev uas lawv nqus cov hnub ci zog sib npaug.
Tus yam ntxwv tseem ceeb ntawm lub ntsej muag fiber ntau yog tias lawv yuav tsum tsis txhob cuam tshuam lub teeb, es tsis txhob, lawv yuav tsum nqus lub teeb ntxiv tsis muaj puas ntsoog. Vim hais tias lub teeb hluav taws xob siv nyob rau hauv kev sib txuas lus fiber ntau muaj qhov qis qis, lawv feem ntau tuaj yeem nqus tau yam tsis muaj kev ceeb toom rau kev puas tsuaj rau nws tus kheej.
Cov Hom Khoom Ntawm Optical Attenuators
Ob hom fiber ntau optic attenuators nyob ua ib ke: tus nqi them rau nqi attenuators thiab cov nce qib optical attenuators.
Tus nqi taag rau attenuators muaj kev hloov pauv uas tau teev tseg los ntawm decibels. Lawv cov ntawv thov suav nrog kev sib txuas xov tooj sib txuas, chaw ntsuas fiber ntau, Lan (LAN) thiab CATV cov tshuab. Piv txwv li, a -3dB attenuator yuav tsum txo qhov kev xav ntawm cov zis los ntawm 3 dB (50%). Tus nqi xauj tsev tus nqi sib txawv tsis tuaj yeem sib txawv tau. Tus attenuation yog qhia hauv dB. Qhov kev khiav hauj lwm wavelength rau optical attenuators yuav tsum tau hais kom meej rau qhov kev ntsuas attenuation, vim hais tias optical attenuation ntawm ib cov khoom sib txawv nrog wavelength. Cov chaw ruaj ruaj cov nqi attenuators muaj ob pawg loj: Hauv hom kab thiab txuas hom. Cov kab hom tshwm zoo li zoo tib yam fiber ntau them cable; nws muaj lub fiber ntau cable tshem tawm nrog ob lub txuas uas koj yuav tau hais qhia hom. Connector hom attenuator zoo li muaj taub hau taub fiber ntau txuas, nws muaj txiv neej xaus thiab poj niam kawg. Nws mates rau cov txuas txuas tsis tu ncua ntawm hom zoo tib yam rau piv txwv FC, ST, SC thiab LC.
Kuj tsis paub meej optical attenuators tuaj nrog ntau tus qauv. Lawv tau siv dav dav los kuaj thiab ntsuas, tab sis lawv kuj muaj kev siv dav hauv EDFA rau kev sib luag ntawm lub hnub ci zog ntawm cov sib txawv. Ib hom ntawm cov ntsuas hluav taws xob sib txawv ntawm cov yeeb yaj kiab ua kom muaj qhov D-puab fiber ntau ua hom evanescent teb ntaus. Yog tias koj cov khoom siv sab nraud, nws qhov ntsuas tsis pom zoo yog qhov loj dua piv rau hom kev ntsuas qhov ntsuas tau zoo, hloov ib feem ntawm qhov evanescent teb rov qab cov cladding, hom tuaj yeem ua xau ntxiv qee qhov los ntawm lub zog hluav taws xob tuaj yeem tawg. Yog tias qhov ntsuas tawm los ntawm cov khoom siv sab nraud tuaj yeem hloov nrog lub ntsiab lus ntawm cov tswj tau, nrog qhov cuam tshuam rau piv txwv thermo-optic, electro-optic, lossis acoustic-optic, ib qho khoom siv nrog cov tswj tau kom ua tiav tau.
Lwm hom kev ntsuas hluav taws xob sib txawv muaj xws li cov huab cua sib txawv, sib dhos, 3-kauj ruam thiab ntau dua.
Tau qhov twg los: http://www.focc-fiber.com