1. Qhov txawv ntawm ib hom thiab ntau hom fiber ntau optic transceivers
Cov tub ntxhais txoj kab uas hla ntawm multimode fiber ntau yog 50 ~ 62.5μm, sab nraud txoj kab uas hla ntawm lub cladding yog 125μm, thiab cov tub ntxhais txoj kab uas hla ntawm ib hom fiber ntau yog 8.3μm, thiab sab nraud txoj kab uas hla ntawm cladding yog 125μm.Kev ua haujlwm wavelengths ntawm optical fibers yog 0.85 μm rau luv wavelengths, 1.31 μm thiab 1.55 μm rau ntev wavelengths.Kev poob fiber ntau feem ntau txo qis nrog lub wavelength, qhov poob ntawm 0.85μm yog 2.5dB / km, poob ntawm 1.31μm yog 0.35dB / km, thiab poob ntawm 1.55μm yog 0.20dB / km, uas yog qhov poob qis tshaj plaws. fiber ntau, lub wavelength ntawm 1.65 Losses saum μm yuav nce.Vim tias qhov nqus tau ntawm OHˉ, muaj qhov poob siab hauv qhov ntau ntawm 0.90 ~ 1.30μm thiab 1.34 ~ 1.52μm, thiab ob qhov no tsis siv tag nrho.Txij li thaum xyoo 1980s, ib hom fibers tau nyiam siv, thiab qhov ntev wavelength ntawm 1.31 μm tau siv ua ntej.
Multimode fiber ntau
Multimode fiber ntau: Lub hauv paus iav core yog tuab (50 lossis 62.5μm), uas tuaj yeem xa lub teeb rau ntau hom.Tab sis nws intermodal dispersion yog qhov loj, uas txwv qhov zaus ntawm kev xa cov cim digital, thiab nws yuav hnyav dua nrog qhov nce ntawm qhov deb.Piv txwv li: 600MB / KM fiber ntau tsuas muaj 300MB bandwidth ntawm 2KM.Yog li ntawd, qhov kev ncua deb ntawm multimode fiber ntau kis tau tus mob luv luv, feem ntau tsuas yog ob peb kilometers.
ib hom fiber ntau
Ib hom fiber ntau (Single Mode Fiber): Lub hauv paus iav hauv nruab nrab yog nyias nyias (cov tub ntxhais txoj kab uas hla feem ntau yog 9 lossis 10 μm), thiab tsuas yog ib hom ntawm lub teeb tuaj yeem kis tau.Yog li ntawd, nws intermodal dispersion yog heev me me, uas yog haum rau kev sib txuas lus nyob deb, tab sis kuj muaj cov khoom dispersion thiab waveguide dispersion, yog li ib hom fiber ntau muaj cov kev xav tau siab dua ntawm qhov dav dav thiab ruaj khov ntawm lub teeb ci, uas yog. , qhov dav spectral yuav tsum nqaim thiab ruaj khov.Ua zoo.Tom qab ntawd, nws tau pom tias nyob rau ntawm lub wavelength ntawm 1.31 μm, cov khoom dispersion thiab waveguide dispersion ntawm ib hom fiber ntau yog qhov zoo thiab qhov tsis zoo, thiab qhov loj me yog tib yam.Qhov no txhais tau hais tias ntawm lub wavelength ntawm 1.31 μm, tag nrho dispersion ntawm ib hom fiber ntau yog xoom.Los ntawm cov yam ntxwv poob ntawm cov fiber ntau, 1.31μm tsuas yog lub qhov rais qis ntawm cov fiber ntau.Nyob rau hauv txoj kev no, thaj tsam 1.31μm wavelength tau dhau los ua lub qhov rais ua haujlwm zoo tshaj plaws rau kev sib txuas lus fiber ntau, thiab nws kuj yog lub luag haujlwm tseem ceeb ntawm kev siv tshuab optical fiber ntau.Cov tsis tseem ceeb ntawm 1.31μm cov pa ib hom fiber ntau yog txiav txim los ntawm International Telecommunication Union ITU-T hauv G652 pom zoo, yog li cov fiber ntau no tseem hu ua G652 fiber.
Puas yog ib hom thiab ntau hom technologies tsim tib lub sijhawm?Puas muaj tseeb tias qhov twg yog qib siab dua thiab ntau hom yog qib siab dua?Feem ntau, ntau hom yog siv rau kev ncua deb, thiab tsuas yog ib hom yog siv rau qhov deb deb, vim hais tias kev sib kis thiab kev txais tos ntawm ntau hom fibers Cov cuab yeej yog pheej yig dua li ib hom.
Ib hom fiber ntau yog siv rau kev sib kis mus ntev, thiab ntau hom fiber ntau yog siv rau kev xa cov ntaub ntawv hauv tsev.Tsuas yog ib hom tuaj yeem siv rau qhov ntev, tab sis ntau hom tsis tas siv rau kev xa cov ntaub ntawv hauv tsev.
Txawm hais tias cov fibers optical siv nyob rau hauv servers thiab cia khoom yog ib hom lossis ntau hom Feem ntau lawv siv ntau hom, vim kuv tsuas yog koom nrog kev sib txuas lus kho qhov muag fibers thiab tsis meej txog qhov teeb meem no.
Puas yog optical fibers yuav tsum tau siv ua khub, thiab puas muaj cov khoom siv xws li ib lub qhov ib leeg-hom fiber ntau cov teeb liab converters?
Puas yog cov fiber ntau optical yuav tsum tau siv ua khub?Yog, nyob rau hauv ib nrab ntawm cov lus nug, koj puas txhais tau tias xa thiab tau txais lub teeb ntawm ib qho khoom siv fiber ntau?Qhov no ua tau.Tuam Tshoj Telecom's 1600G nraub qaum optical fiber network yog zoo li no.
Qhov tseem ceeb tshaj qhov sib txawv ntawm ib hom fiber ntau optic transceivers thiab ntau hom fiber ntau optic transceivers yog kis tau tus mob.Lub multi-mode optical fiber transceiver yog ib tug multi-node thiab multi-chaw nres nkoj teeb liab kis tau tus mob nyob rau hauv kev ua hauj lwm hom, yog li ntawd lub teeb liab kis tau tus mob yog luv luv, tab sis nws yog yooj yim dua, thiab nws yog tsis tsim nyog los siv kev tsim kho ntawm lub zos intranet. .Ib leeg fiber ntau yog ib qho kev sib kis ntawm ib leeg, yog li nws yog qhov tsim nyog rau kev sib kis ntawm cov kab hauv lub cev ntev thiab ua rau kev tsim kho ntawm thaj chaw hla nroog.
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2. Yuav ua li cas paub qhov txawv ib hom thiab ntau hom fiber ntau optic transceivers
Qee zaum, peb yuav tsum paub meej tias hom fiber ntau optic transceiver, yog li yuav ua li cas txiav txim siab seb qhov fiber ntau optic transceiver yog hom ib hom lossis ntau hom?
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1. Sib txawv ntawm lub taub hau taub hau, tshem tawm cov fiber ntau optic transceiver taub hau plua plav 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. Qhov txawv ntawm tus qauv: feem ntau pom seb puas muaj S thiab M hauv cov qauv, S txhais tau tias ib hom, M txhais tau ntau hom.
3. Yog tias nws tau raug ntsia thiab siv, koj tuaj yeem pom cov xim ntawm cov fiber ntau jumper, txiv kab ntxwv yog ntau hom, daj yog ib hom
Post lub sij hawm: Sep-01-2022