1. Qhov txawv ntawm ib hom thiab ntau hom fiber optic transceivers
Lub taub hau ntawm cov fiber ntau hom yog 50 ~ 62.5μm, lub taub hau sab nraud ntawm lub cladding yog 125μm, thiab lub taub hau ntawm cov fiber ib hom yog 8.3μm, thiab lub taub hau sab nraud ntawm lub cladding yog 125μm. Lub wavelength ua haujlwm ntawm cov fiber kho qhov muag yog 0.85 μm rau cov wavelength luv luv, 1.31 μm thiab 1.55 μm rau cov wavelength ntev. Feem ntau, qhov poob ntawm cov fiber txo qis nrog lub wavelength, qhov poob ntawm 0.85μm yog 2.5dB / km, qhov poob ntawm 1.31μm yog 0.35dB / km, thiab qhov poob ntawm 1.55μm yog 0.20dB / km, uas yog qhov poob qis tshaj plaws ntawm cov fiber, lub wavelength ntawm 1.65. Qhov poob saum toj no μm feem ntau nce. Vim yog qhov nqus ntawm OHˉ, muaj cov ncov poob hauv qhov ntau ntawm 0.90 ~ 1.30μm thiab 1.34 ~ 1.52μm, thiab ob qhov ntau no tsis tau siv tag nrho. Txij li xyoo 1980, cov fibers ib hom tau siv, thiab qhov ntev ntawm 1.31 μm tau siv ua ntej.
Multimode fiber ntau
Multimode fiber: Lub iav nruab nrab yog tuab dua (50 lossis 62.5μm), uas tuaj yeem xa lub teeb hauv ntau hom. Tab sis nws qhov kev sib kis intermodal loj heev, uas txwv qhov zaus ntawm kev xa cov teeb liab digital, thiab nws yuav hnyav dua nrog kev nce ntawm qhov deb. Piv txwv li: 600MB / KM fiber tsuas muaj 300MB bandwidth ntawm 2KM. Yog li ntawd, qhov deb ntawm multimode fiber kis tau luv luv, feem ntau tsuas yog ob peb kilometers.
ib hom fiber ntau
Ib hom fiber (Ib hom fiber): Lub hauv paus iav nruab nrab yog nyias heev (lub hauv paus txoj kab uas hla feem ntau yog 9 lossis 10 μm), thiab tsuas yog ib hom teeb pom kev tuaj yeem kis tau. Yog li ntawd, nws qhov kev sib kis intermodal me heev, uas yog qhov tsim nyog rau kev sib txuas lus ntev, tab sis kuj muaj cov khoom siv sib kis thiab waveguide dispersion, yog li cov fiber ib hom muaj qhov xav tau ntau dua ntawm qhov dav spectral thiab kev ruaj khov ntawm lub teeb qhov chaw, uas yog, qhov dav spectral yuav tsum nqaim thiab ruaj khov. Ua zoo. Tom qab ntawd, nws tau pom tias ntawm qhov ntev ntawm 1.31 μm, cov khoom siv sib kis thiab qhov sib kis waveguide ntawm cov fiber ib hom yog qhov zoo thiab qhov tsis zoo, thiab qhov loj me yog tib yam. Qhov no txhais tau tias ntawm qhov ntev ntawm 1.31 μm, tag nrho cov kev sib kis ntawm cov fiber ib hom yog xoom. Los ntawm cov yam ntxwv poob ntawm cov fiber, 1.31 μm tsuas yog lub qhov rais qis poob ntawm cov fiber. Ua li no, thaj tsam 1.31μm wavelength tau dhau los ua lub qhov rais ua haujlwm zoo tagnrho rau kev sib txuas lus fiber ntau, thiab nws tseem yog pawg ua haujlwm tseem ceeb ntawm cov txheej txheem sib txuas lus fiber ntau. Cov kev cai tseem ceeb ntawm 1.31μm ib hom fiber ntau yog txiav txim siab los ntawm International Telecommunication Union ITU-T hauv G652 cov lus pom zoo, yog li cov fiber no tseem hu ua G652 fiber.
Puas yog cov thev naus laus zis ib hom thiab ntau hom tsim tawm tib lub sijhawm? Puas yog qhov tseeb tias qhov twg siab dua thiab ntau hom yog qib siab dua? Feem ntau, ntau hom yog siv rau qhov deb luv luv, thiab tsuas yog ib hom yog siv rau qhov deb deb, vim tias kev xa thiab txais cov fibers ntau hom Lub cuab yeej pheej yig dua li ib hom.
Ib hom fiber siv rau kev xa mus ntev, thiab ntau hom fiber siv rau kev xa cov ntaub ntawv sab hauv tsev. Tsuas yog ib hom xwb thiaj siv tau rau kev xa mus ntev, tab sis ntau hom tsis tas yuav siv rau kev xa cov ntaub ntawv sab hauv tsev.
Txawm hais tias cov fiber ntau siv hauv cov servers thiab cov khoom siv cia khoom yog ib hom lossis ntau hom Feem ntau ntawm lawv siv ntau hom, vim kuv tsuas yog koom nrog kev sib txuas lus fiber ntau thiab tsis meej txog qhov teeb meem no.
Cov fibers optical puas yuav tsum tau siv ua khub, thiab puas muaj cov khoom siv xws li cov khoom siv hloov pauv teeb liab ib hom ib qho?
Puas yog cov fiber optic yuav tsum tau siv ua khub? Yog lawm, hauv ib nrab ntawm cov lus nug, koj puas txhais tau tias yuav tsum xa thiab txais lub teeb ntawm ib lub fiber optic? Qhov no ua tau. Tuam Tshoj Telecom's 1600G backbone optical fiber network zoo li no.
Qhov sib txawv tseem ceeb tshaj plaws ntawm cov khoom siv fiber optic ib hom thiab cov khoom siv fiber optic ntau hom yog qhov deb ntawm kev sib kis. Cov khoom siv fiber optic ntau hom yog kev sib kis ntau lub node thiab ntau lub chaw nres nkoj hauv hom ua haujlwm, yog li qhov kev sib kis ntawm cov teeb liab luv luv, tab sis nws yooj yim dua, thiab nws tsis tsim nyog siv kev tsim kho ntawm lub intranet hauv zos. Ib lub fiber yog kev sib kis ib lub node, yog li nws tsim nyog rau kev sib kis ntawm cov kab ntev thiab tsim kev tsim kho ntawm lub network hla nroog.
2. Yuav ua li cas kom paub qhov txawv ntawm ib hom thiab ntau hom fiber optic transceivers
Qee zaum, peb yuav tsum paub meej tias hom fiber optic transceiver yog dab tsi, yog li yuav ua li cas thiaj txiav txim siab seb lub fiber optic transceiver yog ib hom lossis ntau hom?
1. Paub qhov txawv ntawm lub taub hau taub hau, tshem lub hau fiber optic transceiver taub hau taub hau, thiab saib cov xim ntawm cov khoom sib txuas hauv lub taub hau taub hau. Sab hauv ntawm ib hom TX thiab RX interfaces yog coated nrog dawb ceramics, thiab ntau hom interface yog xim av.
2. Txawv ntawm tus qauv: feem ntau saib seb puas muaj S thiab M hauv tus qauv, S txhais tau tias ib hom, M txhais tau tias ntau hom.
3. Yog tias nws tau raug teeb tsa thiab siv lawm, koj tuaj yeem pom xim ntawm lub jumper fiber, txiv kab ntxwv yog ntau hom, daj yog ib hom
Lub sijhawm tshaj tawm: Cuaj hlis-01-2022