• Cov cables OS, lossis cov fibers optical single-mode, yog cov fibers single-mode uas zoo tagnrho rau kev mus deb thiab kev xa cov ntaub ntawv ceev ceev. Cov cables OM yog cov fibers multimode, zoo tshaj plaws rau kev sib txuas lus luv luv. Kev paub txog qhov sib txawv ua kom ntseeg tau tias koj tau txais kev ua tau zoo tshaj plaws rau koj daim ntawv thov tshwj xeeb.

• OS1 fibers yog optimized rau sab hauv tsev daim ntawv thov, nyob rau hauv uas qhov deb feem ntau yog luv luv thiab intrinsic attenuation ntau dua. Conversely, OS2 fibers yog zoo dua rau sab nraum zoov ib puag ncig thiab ntev ntau daim ntawv thov raws li lawv muab qis dua attenuation.

• Cov cables OM raug faib los ntawm cov qauv (OM1-OM5) nrog txhua tus muab cov nqi sib txawv ntawm bandwidth thiab qhov deb. Laser-optimized OM3 thiab OM4 muab kev ua tau zoo, OM5 nrog kev txhawb nqa multimode rau ntau lub wavelengths muab kev sib txuas lus yav tom ntej.

• Qhov loj ntawm cov tub ntxhais suav tias yog qhov tseem ceeb rau kev xaiv fiber. Cov xov hlau ib hom (OS1 / OS2) siv cov tub ntxhais me dua, zoo tagnrho rau kev sib kis mus ntev. Ntawm qhov tod tes, cov fibers multimode (OM), vim lawv cov tub ntxhais tuab dua, ci ntsa iab hauv cov tes hauj lwm hauv cheeb tsam.

• Qhov bandwidth thiab attenuation ntawm modal ua lub luag haujlwm tseem ceeb hauv kev xa cov ntaub ntawv thiab qhov zoo ntawm cov teeb liab. Kev xaiv cov cable zoo tshaj plaws raws li cov ntsuas no ua rau muaj kev ua haujlwm zoo tshaj plaws thiab txhim khu kev qha hauv network.

• Soj ntsuam koj lub network qhov deb, bandwidth, thiab yav tom ntej scalability xav tau los ua qhov kev xaiv paub ntawm OS thiab OM fibers uas phim koj cov peev nyiaj thiab cov kev cai lij choj.

Tam sim no koj paub qhov txawv ntawm OS1, OS2 thiab OM1 txog OM5, thiab dab tsi zoo tshaj plaws rau koj daim ntawv thov. OS1 thiab OS2 yog International Telecommunications Union (ITU) cov qib txheem ntawm cov fibers optical ib hom.

OS1 zoo tagnrho rau kev siv hauv tsev rau qhov chaw luv dua, thaum OS2 zoo heev rau kev khiav sab nraum zoov ntev. OM1 thiab OM2 zoo rau kev teeb tsa yooj yim, tab sis OM3, OM4, thiab OM5 ci ntsa iab ntawm qhov ceev dua thiab qhov deb ntev dua.

Ntawm tsib hom, OM1, OM2, OM3, OM4, thiab OM5 yog suav tias yog multimode fiber. OM5 qhia txog kev sib raug zoo rau kev siv hauv cov ntawv thov wideband.

Txhua hom muaj lub hom phiaj raws li lawv qhov deb, qhov ceev, thiab qhov chaw. Hauv cov ntu tom ntej no, peb yuav tham txog lawv qhov sib txawv, kev siv, thiab qhov zoo kom ntseeg tau tias koj xaiv qhov yog rau koj cov kev xav tau.

Cov Kab Hlau OS thiab OM Fiber: Kev Txheeb Xyuas

Cov xov hlau fiber optic, uas muaj cov duab OS (Optical Single-mode) thiab OM (Optical Multimode), yog lub hauv paus ntawm cov qauv kev sib txuas lus niaj hnub no. Lawv lub npe feem ntau yog los ntawm lawv cov qauv tseem ceeb, kev ua tau zoo, thiab kev siv.

Kev nkag siab txog qhov sib txawv ntawm cov hom no yog qhov tseem ceeb rau kev xaiv qhov zoo rau ntau yam kev siv network.

Nkag Siab Txog OS Fiber Cables

Cov xov hlau OS muaj cov xov hlau ib hom, uas paub txog lawv qhov me me ntawm lub hauv paus, feem ntau yog 8-10 microns hauv txoj kab uas hla. Qhov kev tsim no txhais tau tias lawv muaj peev xwm xa lub teeb raws li ib txoj kev xwb, txo cov teeb liab cuam tshuam hla qhov deb ntev dua.

OS1 thiab OS2 yog ob hom tseem ceeb. Cov xov hlau OS1 zoo tagnrho rau kev siv sab hauv tsev thiab muaj tus nqi qis ntawm 2 dB / km ntawm 1550 nm. Piv txwv li, cov xov hlau OS2 tswj hwm sab nraum zoov thiab kev sib txuas lus ntev, ua haujlwm tau zoo ntawm qhov ntev ntawm 1310 lossis 1550 nanometers.

Kev sib txuas lus thiab kev xa cov ntaub ntawv mus deb feem ntau yog nyob ntawm OS cables. Lawv lav qhov tseeb heev thiab qhov tsis zoo ntawm cov teeb liab, ob qho tib si tseem ceeb heev rau kev sib txuas lus zoo tshaj plaws.

Txawm hais tias lawv xav tau cov khoom siv laser kim heev, lawv cov kev ua tau zoo tsis sib xws rau cov ntawv thov ntev ua rau tus nqi tsim nyog.

Tshawb Nrhiav OM Fiber Cables

Cov cables OM, tseem hu ua multimode fibers, yog tus cwj pwm los ntawm lawv cov cores loj dua, feem ntau yog 50 - 62.5 microns hauv txoj kab uas hla. Qhov no txhais tau tias lub teeb tuaj yeem siv ntau txoj kev sib txawv, yog vim li cas lawv tau siv rau hauv kev sib txuas lus luv luv.

OM1 muaj lub core 62.5-micron thiab xa cov ntaub ntawv mus txog 984 feet ntawm 10 Gbps. Piv txwv li, OM2 ua ob npaug ntawm qhov deb ntawd, ncav cuag qhov ceev xa mus txog 1,804 feet ntawm tib qhov ceev.

OM3, OM4, thiab OM5 muab cov bandwidths ntau dua, uas zoo meej rau cov chaw khaws ntaub ntawv ceev ceev thiab cov tes hauj lwm hauv tsev kawm ntawv niaj hnub no.

Dab tsi txawv ntawm OS thiab OM Fibers?

Kev nkag siab txog qhov sib txawv ntawm Optical Singlemode (OS) thiab Optical Multimode (OM) fibers yog qhov tseem ceeb rau kev xaiv hom cable zoo rau cov ntawv thov tshwj xeeb. Cov kev sib txawv no yog qhov tshwm sim ntawm qhov sib txawv ntawm cov qauv tseem ceeb, kev ua tau zoo, kev ntsuas, kev muaj peev xwm nyob deb thiab kev siv zoo tshaj plaws.

1. Qhov sib txawv ntawm cov tub ntxhais kawm: Ib hom vs. Multimode

Dhau li ntawm qhov ntawd, qhov loj ntawm lub hauv paus tseem ceeb rau kev xa cov teeb liab. Qhov no tau ua pov thawj los ntawm OS fibers, uas muaj lub hauv paus me dua, feem ntau yog 8-10 microns, uas tso cai rau kev xa ib hom. Tus qauv tsim no txo ​​​​​​cov modal dispersion, tso cai rau OS fibers ua haujlwm tau zoo ntawm qhov deb ntev.

Qhov sib txawv, OM fibers tsis muaj qhov tseeb rau kev xa xov luv dua. OM fibers muaj qhov loj dua uas yog ntawm 50 thiab 62.5 microns. Qhov no ua rau ntau hom teeb pom kev sib txawv, ntxiv qhov kev sib kis modal tseem ceeb thiab txwv tsis pub muaj peev xwm ncua deb thiab bandwidth.

Tsis tas li ntawd xwb, kev ua tau zoo raug cuam tshuam los ntawm hom kev ua haujlwm. OS fibers ua haujlwm ntawm 1310 lossis 1550-nanometer wavelengths. Lawv xav tau cov chaw laser kim dua, vim lawv qhov kev ua haujlwm siab. OM fibers ua haujlwm ntawm wavelengths luv dua, zoo li 850 nanometers. Lawv siv cov chaw teeb LED pheej yig, ua rau lawv pheej yig rau kev siv luv luv.

2. Kev Ntsuas Kev Ua Tau Zoo: OS vs OM

Bandwidth yog ib qho ntawm cov yam tseem ceeb tshaj plaws hauv kev ua tau zoo. Vim tias OS fibers qhia txog cov khoom siv bandwidth ntau dua piv rau OM fibers, OS fibers tau siv dav rau kev sib txuas lus ceev ceev, ntev.

Vim yog qhov modal dispersion, OM fibers zoo dua rau cov ntawv thov luv luv.

3. Qhov Deb thiab Bandwidth Muaj Peev Xwm

Cov xov hluav taws xob OS muab kev ua tau zoo heev hauv kev siv mus ntev. OS1 raug ntsuas rau ntau yam txog li 1.2 mais. OS2 txawm tias ob npaug ntawm qhov deb tshaj plaws mus rau 6.2 mais, ob qho tib si xav tau qhov poob siab tshaj plaws ntawm 1.0 dB / km.

Cov fiber OM yog tsim los rau qhov ntev luv dua, nrog qhov deb tshaj plaws feem ntau nyob ib puag ncig 550 yards thaum siv tus qauv OM4. Lawv khaws cia 3.0 dB / km poob hauv pem teb. Rau cov ntawv thov bandwidth siab, OS fibers dhau OM vim yog kev sib kis ib hom thiab qis dua kev sib kis.

4. Cov Xwm Txheej Thov rau Txhua Hom

Cov xov hlau OS zoo heev rau kev sib txuas lus thiab lwm yam kev sib txuas lus ntev, suav nrog kev sib txuas lus ntawm cov ntaub ntawv hauv nroog. Lawv lub peev xwm los ua kom lub teeb liab muaj tseeb ntau mais yog qhov ua rau lawv tseem ceeb heev hauv cov chaw muaj kev thov siab no.

Qhov ntawd ua rau cov cables OM yog qhov kev xaiv meej rau kev sib txuas ceev ceev, multimode hauv cov tes hauj lwm hauv zos (LANs), cov chaw khaws ntaub ntawv, thiab cov tes hauj lwm hauv tsev kawm ntawv. Lawv zoo tagnrho rau qhov deb nruab nrab uas xav tau kev sib txuas ceev ceev.

Diving Deeper: OM Fiber Standards (OM1-OM5)

Cov cables fiber optic multimode (OM1-OM5) tau tsim kho sai sai kom ua tau raws li qhov xav tau ntawm kev sib txuas lus ceev ceev thiab muaj kev thov ntau ntxiv. Txhua tus qauv muab cov peev xwm tshwj xeeb ntsig txog bandwidth, qhov deb, thiab cov ntawv thov, pab tsim kom muaj qhov haum zoo tshaj plaws rau txhua tus hauv ntau qhov chaw sib txawv.

Kev paub txog seb cov qauv no txawv li cas rau txhua qhov kev siv yog qhov tseem ceeb rau kev txheeb xyuas qhov kev daws teeb meem zoo tshaj plaws rau koj cov kev xav tau sib txuas lus tshwj xeeb.

OM1 thiab OM2: Cov Fibers Multimode Qub

OM1 thiab OM2 yog thawj tiam ntawm cov fiber ntau multimode, tsim los nrog kev sib txuas lus luv luv hauv siab. OM1 txhawb nqa qhov deb ntawm 6,561 ft thiab muab bandwidth ntawm 160 MHz·km.

OM2 khaws cia tib yam li OM1 tab sis ua rau bandwidth nce mus txog 500 MHz·km. Ob qho tib si nyob ntawm LED transmitters, uas txwv lawv lub peev xwm kom ncav cuag qhov ceev thiab bandwidths siab dua.

Yav dhau los, cov cables no feem ntau pom muaj nyob rau hauv cov tes hauj lwm qub thiab cov kab ke, suav nrog Ethernet ib puag ncig uas ua haujlwm ntawm 10 Mbps txog 100 Mbps. Raws li cov kev xav tau ntawm network txav mus txhawb nqa qhov ceev dua, cov fibers multimode no pib ploj mus.

Niaj hnub no, OM1 thiab OM2 tsis tshua siv tau rau hauv kev teeb tsa tshiab tab sis tseem muaj nyob rau hauv cov chaw tsim kho uas twb muaj lawm.

OM3 thiab OM4: Cov Fibers Uas Zoo Tshaj Plaws Los Ntawm Laser

OM3 thiab OM4 tau qhia txog laser-optimized multimode technology (LOMMF), uas muab kev nce ntxiv ntawm bandwidth thiab nrug. OM3 thiab OM4 mus txog 16,404 feet thiab 2.5 GHz·km thiab 32,808 feet thiab 4.7 GHz·km, raws li.

Cov cables no zoo meej rau cov ntawv thov ceev xws li cov chaw khaws ntaub ntawv thiab cov tes hauj lwm lag luam, txhawb nqa qhov ceev xa mus txog 100 Gbps. Qhov tseeb, feem ntau ntawm OM4 muag niaj hnub no tau tshaj tawm raws li lub npe ntawm cov fiber OM3 zoo tshaj plaws vim muaj peev xwm ua tau zoo sib tshooj.

OM5: Wideband Multimode Fiber

OM5, tus qauv tshiab tshaj plaws, yog tsim los txhawb ntau lub wavelengths tshaj 850 nm, suav nrog 880 nm thiab 940 nm. Nws muab bandwidth ntawm 28 GHz·km.

Nws txhawb nqa 40 Gbps thiab 100 Gbps ceev dhau qhov luv luv ntawm 100 meters (328 feet) txog 150 meters (492 feet). Nws txoj kev tsim kho yog qhov zoo tagnrho rau cov thev naus laus zis zoo heev, xws li wavelength division multiplexing (WDM), uas tso cai rau yav tom ntej-proofing rau tiam tom ntej networking.

Cov yam ntxwv tseem ceeb ntawm OM1 txog OM5

• OM1: 6,561 ft, 160 MHz·km, siv LED.

• OM2: 6,561 ft, 500 MHz·km, siv LED.

• OM3: 16,404 ft, 2.5 GHz·km, kho kom zoo dua los ntawm laser.

• OM4: 32,808 ft, 4.7 GHz·km, kho kom zoo dua los ntawm laser.

• OM5: 492 ft, 28 GHz·km, kho kom zoo dua los ntawm laser, txhawb nqa WDM.

Hom OS Fiber: Kev Sib Piv Kom Paub Ntxiv

Kev xaiv fiber, tshwj xeeb tshaj yog thaum piv OS1 thiab OS2 fibers, yog ib qho kev ua haujlwm ntawm kev nkag siab txog cov yam ntxwv sib txawv thiab kev siv uas tau npaj tseg. Txhua tus yog ib hom fiber tab sis qhov zoo sib xws xaus rau ntawm cov yam ntxwv tsim, cov yam ntxwv kev ua tau zoo thiab cov ntawv thov. OS fibers feem ntau muaj cov cores nqaim dua li OM fibers, uas ua rau lawv tsim nyog dua rau kev xa cov teeb liab mus deb uas pom hauv kev sib txuas lus.

Lawv yuav tsum ua haujlwm ntawm 1310 lossis 1550 nanometer wavelengths, xav tau cov khoom siv laser raug dua thiab kim dua.

OS1: Cov Kev Siv Sab Hauv Tsev

Cov fiber OS1 tau tsim tshwj xeeb rau kev xav tau kev sib txuas lus luv luv, hauv tsev. Lawv tsuas muaj peev xwm txog li 1.24 mais (2 km) thiab ceev ntawm 1 txog 10 Gb / s. Yog li ntawd, lawv zoo rau txhua qhov kev teeb tsa network hauv zos (LAN), kev xa mus rau chaw khaws ntaub ntawv, lossis chaw ua haujlwm hauv tuam txhab.

Lawv txoj kev tsim qauv ua rau qhov yooj yim tshaj plaws thiab txo tus nqi rau kev teeb tsa sab hauv tsev thaum muab cov ntsiab lus sib txuas ruaj khov rau kev teeb tsa sab nraum zoov. Lawv lub peev xwm ua haujlwm raug txwv hauv cov xwm txheej uas xav tau kev ceev ceev lossis kev ncua deb ntev dua, vim tias cov teebmeem attenuation ua rau pom tseeb dua.

Cov fiber OS1 feem ntau muaj tus nqi attenuation ntawm 1.0 dB ib kilometer. Qhov tseeb, tus nqi no txaus rau kev khiav luv dua tab sis tsis txiav nws rau qhov deb ntev dua.

OS2: Cov Ntawv Siv Sab Nraum Zoov

Tsis tas li ntawd xwb, OS2 fibers ua tau zoo tshaj plaws hauv kev siv ntev, sab nraum zoov - xws li kev sib txuas lus rov qab thiab kev sib txuas lus hauv nroog. Lawv pab txhawb kev thauj mus los ntawm 3.1 txog 6.2 mais (5 txog 10 km). Nrog rau cov khoom bandwidth-distance ntawm 4.0 GHz·km, lawv zoo tagnrho rau kev xa mus ntev.

Lawv qhov xwm txheej ruaj khov tuaj yeem tuav tau tiv thaiv cov ntsiab lus kom xa tau qhov ruaj khov thiab lub teeb liab zoo meej thoob plaws hauv txoj kev ntev. OS2 fibers zoo dua ntawm kev ncaj ncees ntawm lub teeb liab ntev nrog tus nqi attenuation ntawm 0.4 dB ib mais ntawm 1310 nm.

Nws yog qhov kev ua tau zoo no uas ua rau lawv zoo dua li OS1 fibers.

Kev sib txawv ntawm kev txo qis hauv OS Fibers

Kev txo qis cuam tshuam rau kev ua tau zoo los ntawm kev ua kom lub zog teeb liab tsis muaj zog. OS1 fibers muaj qhov siab tshaj plaws ntawm 4 dB / km, uas txwv lawv siv rau qhov luv dua.

Ntawm qhov tod tes, OS2 fibers muab kev ua haujlwm zoo dua rau kev tswj cov teeb liab zoo dua qhov deb dua, uas yog qhov tseem ceeb heev rau kev siv sab nraum zoov.

Kev Sib Txawv ntawm Kev Siv Tshuab thiab Kev Cuam Tshuam ntawm Kev Ua Haujlwm

Kev nkag siab txog qhov sib txawv ntawm OS (Optical Single-mode) thiab OM (Optical Multimode) fibers yog qhov tseem ceeb rau kev xaiv cov kev daws teeb meem zoo rau cov kev xav tau hauv network. Cov kev sib txawv no feem ntau yog los ntawm qhov loj me ntawm lub hauv paus thiab modal bandwidth.

Cov yam no los ua ke los cuam tshuam rau kev xa cov ntaub ntawv thiab thaum kawg txiav txim siab seb txhua hom ua haujlwm li cas hauv ntau yam xwm txheej sib txawv.

Qhov Loj ntawm Lub Cev thiab Nws Qhov Tseem Ceeb

Qhov loj ntawm lub hauv paus uas pom tseeb cuam tshuam ncaj qha rau cov teeb liab uas xa mus los ntawm cov xov hlau fiber optic. Cov fibers ib hom (OS1, OS2) muaj lub hauv paus fiber nyias, 9-micron, uas tsuas yog ib txoj kev rau lub teeb mus ncig.

Qhov no yog ib qho kev tsim zoo heev rau kev txo qhov kev tawg. Yog li ntawd, cov teeb liab tuaj yeem npog ntau yam zoo kawg nkaus: 15.5 mais ntawm 1310 nm thiab 24.8 mais ntawm 1550 nm, nrog rau qhov txo qis ntawm 0.4 dB / km thiab 0.3 dB / km, qhov tsawg kawg nkaus ntawm kev poob teeb liab.

Piv txwv li, cov fiber ntau hom (OM1-OM5) muaj cov cores loj dua (50 txog 62.5 microns), tso cai rau ntau txoj kev rau lub teeb. Txawm hais tias qhov kev xaiv tsim no pab nrog cov ntaub ntawv siab heev, nws ua rau lub teeb liab poob ntau dua qhov deb.

OM1 muaj kev txo qis ntau dua li OM4. OM4 lub hauv paus tshiab thiab cov khoom siv tsim ua tau zoo ua rau muaj kev ua haujlwm zoo dua rau cov ntawv thov luv luv.

Kev piav qhia txog Modal Bandwidth

Hauv modal bandwidth, ntsuas hauv MHz·km, lub peev xwm ntawm lub fiber los nqa cov ntaub ntawv yog txiav txim siab los ntawm nws cov fiber suav. OM4's bandwidth (4700 MHz·km ntawm 850 nm) deb tshaj OM3's (2000 MHz·km), uas tso cai rau kev sib kis sai dua thiab sib xws.

OM5 coj qhov ntawd mus ib kauj ruam ntxiv, nrog kev ua tau zoo tshaj plaws txhua qhov chaw uas peb siv cov wavelengths txog li 940 nm.

Kev Cuam Tshuam rau Cov Nqi Xa Cov Ntaub Ntawv

Ua ke qhov loj me ntawm lub hauv paus thiab bandwidth txwv cov nqi kis. Rau cov ntawv thov luv luv, cov fiber ntau multimode xa cov kev ua tau zoo, txhawb nqa qhov deb ntawm 100 Gbps dhau qhov deb luv dua.

Cov fibers ib hom, tsim los rau qhov poob tsawg tshaj plaws, ua tau raws li qhov xav tau ntev, muaj peev xwm siab tau yooj yim.

Xaiv Cov Cable Fiber Zoo

Kev xaiv cov xov fiber zoo tshaj plaws rau koj lub network txhais tau tias nrhiav kev sib pauv zoo ntawm kev ua tau zoo, tus nqi, thiab cov kev xav tau mus sij hawm ntev. Raws li peb tau tham ua ntej, txhua hom fiber muaj peev xwm tshwj xeeb uas pab tau rau ntau yam kev siv.

Ua ntej tshaj, xav txog seb koj lub network xav tau dab tsi. Tom qab ntawd, xav txog lwm yam xws li qhov deb, bandwidth, thiab nyiaj txiag kom xaiv tau cov fiber cable uas haum rau koj. Nyeem ntxiv thaum peb piav qhia txog qee yam tseem ceeb uas yuav tsum xav txog los pab koj txiav txim siab.

Soj Ntsuam Koj Cov Kev Xav Tau Hauv Network

Pib los ntawm kev txiav txim siab txog cov kev xav tau tshwj xeeb ntawm koj lub network. Cov fibers ib hom (OS2) yog qhov zoo tshaj plaws rau cov ntawv thov deb, xws li kev sib txuas lus, qhov twg kev sib txuas ntev mus deb.

Cov fiber ntau hom (OM1–OM5) ua tau zoo tshaj plaws rau kev sib txuas lus luv luv. Lawv yog cov kev xaiv zoo tshaj plaws rau kev sib txuas cov khoom siv hauv tsev lossis tsev kawm ntawv, nrog OM1 feem ntau tswj kev ncua deb txog li ob peb puas meters.

Peb yuav tsum tau ceev faj txog qhov xav tau cov ntaub ntawv yav tom ntej. Piv txwv li, OM5 txoj kev txhawb nqa ntawm cov wavelengths dav dua ua rau nws yooj yim rau kev hloov kho dua tshiab, ua rau nws yog qhov kev daws teeb meem zoo tshaj plaws rau cov tes hauj lwm uas muaj kev xav tau yav tom ntej.

Xav Txog Qhov Deb thiab Bandwidth Xav Tau

Qhov deb thiab bandwidth yog cov yam tseem ceeb hauv kev txiav txim siab seb yuav siv cov fiber twg. Cov fibers ib hom muab kev ua tau zoo tshaj plaws ntawm qhov deb ntev dua, thaum cov fibers multimode zoo tagnrho rau cov ntawv thov luv luv.

Ob qho tib si OM3 thiab OM4 multimode fibers txhawb nqa qhov deb ntawm txog li 550 meters ntawm 10Gbps. Qhov feature no ua rau lawv zoo meej rau kev ua haujlwm ceev ceev, luv luv.

Kev ua tau zoo raug cuam tshuam los ntawm qhov sib txawv ntawm lub hauv paus. Cov fibers multimode muaj cov cores tuab dua, feem ntau yog 50 lossis 62.5 microns, uas tso cai rau lawv nqa ntau hom teeb sib txawv.

Tshuaj Xyuas Tus Nqi thiab Nyiaj Txiag

Cov fibers ib hom kim dua vim muaj kev kam rau siab dua thiab cov khoom siv laser kim, feem ntau ua haujlwm ntawm 1310 lossis 1550 nm wavelengths.

Cov fibers multimode, uas tsim txog 80% ntawm kev teeb tsa, muab kev xaiv pheej yig dua rau qhov deb luv dua, thaum tseem xa cov kev ua tau zoo tsim nyog.

Kev Txhim Kho Koj Lub Network Yav Tom Ntej

Kev tiv thaiv yav tom ntej tuaj yeem yog qhov tseem ceeb heev. Kev xaiv cov kev daws teeb meem fiber ntau uas hloov pauv tau thiab nthuav dav tau yuav tiv thaiv koj lub network yav tom ntej thiab muab kev ywj pheej rau koj los siv cov thev naus laus zis tshiab thaum lawv tsim kho.

Kev Xav Txog Tus Nqi Rau Fiber Optics

Thaum xav txog kev siv fiber optic, nws yog ib qho tseem ceeb kom paub tias cov nqi no sib txawv npaum li cas ntawm Single-Hom (OS1 & OS2) thiab Multi-Hom (OM1 txog OM5) fibers. Cov nqi no tsis yog tsuas yog sib txawv ntawm theem kev nqis peev ua ntej xwb, tab sis kuj ntawm theem kev saib xyuas mus sij hawm ntev thiab. Txhua yam ntawm cov yam no cuam tshuam ncaj qha rau tus nqi, tus nqi thiab kev ua tau ntawm kev tsim lub kaw lus fiber optic.

Cov Nqi Pib Ua Lag Luam

Qhov kev nqis peev thawj zaug rau ob qho tib si Ib Hom (OS1 / OS2) nrog rau Multi-Hode (ob qho tib si OM1-OM5) fibers sib txawv heev.

Muaj ib qho kev nkag siab yuam kev tias cov fibers ib hom kim dua li lawv cov multi-mode counterparts. Cov fibers ib hom xav tau cov khoom siv optical kim 1300nm. Cov modules no feem ntau raug nqi 2-3 npaug ntau dua li cov modules 850nm uas peb siv rau cov fibers ntau hom. Qhov no ua rau tag nrho cov nyiaj siv rau cov kab ke ib hom ntau dua.

Cov fiber ntau hom, tshwj xeeb tshaj yog OM4 thiab OM5, muaj ntau txoj kev xaiv txuag tau nyiaj. OM4 fiber khiav kwv yees li 33 feem pua ​​​​​​pheej yig dua li OM2 tab sis muaj kev ua tau zoo dua. Kev hloov kho mus rau OM4 fiber tshem tawm qhov kev pheej hmoo ntawd thaum ua kom ntseeg tau tias lub kaw lus tau txais txiaj ntsig los ntawm kev nce qib tshiab hauv cov thev naus laus zis ntau hom, txuag cov nqi hauv cov txheej txheem.

OM5 txhawb nqa kev ceev dua thiab cov ntawv thov zoo dua, suav nrog 200/400G Ethernet, nrog rau kev siv tsuas yog 8-core WBMMF. Txawm hais tias nws kim dua OM4, nws them nyiaj faib los ntawm kev txo tus nqi ntawm kev txhim kho yav tom ntej.

Cov Nqi Kho Mus Ntev

Yog li ntawd, cov nqi kho thiab kho kom zoo ua lub luag haujlwm tseem ceeb hauv kev siv nyiaj rau lawv. Kev teeb tsa ib hom, txawm hais tias ntseeg tau, xav tau cov khoom siv tshwj xeeb, kim thiab kev txawj ntse los tswj thiab kho dua tshiab.

Ntawm qhov tod tes, cov fiber ntau hom feem ntau muaj qhov yuav tsum tau saib xyuas qis dua, txo cov nqi mus sij hawm ntev. Kev hloov kho mus rau cov kev xaiv ntau hom zoo dua, xws li OM4 lossis OM5, muab kev txo qis ntawm kev nyuaj ntawm kev saib xyuas thaum ua kom muaj thiab lub neej ntev ntawm lub kaw lus.

Kev Tshuaj Xyuas Tus Nqi thiab Cov Txiaj Ntsig

Rau qhov kev xav tau deb lossis kev xav tau siab, ces ib hom yog qhov tsim nyog dua. Rau cov chaw khaws ntaub ntawv lossis cov lag luam uas suav tias muaj kev nthuav dav thiab txo cov nqi kho, OM4 lossis OM5 muab qhov txiaj ntsig zoo dua.

Kev Sib Koom Ua Ke thiab Kev Sib Haum Xeeb

Thaum xaiv cov cable fiber optic, kev sib koom ua ke thiab kev sib haum xeeb yog qhov tseem ceeb rau kev ua kom koj lub cev ua haujlwm zoo. Cov yam no muaj feem cuam tshuam loj heev rau qhov ua tau zoo ntawm lub cev, kev nthuav dav mus sij hawm ntev thiab kev siv nyiaj tsim nyog. Kev sib haum xeeb yog ntau tshaj li kev sib phim cov cables rau kho vajtse.

Nws kuj xav kom lub kaw lus sib koom tes nrog cov txheej txheem tam sim no thiab muaj rau kev nce qib yav tom ntej, txhua yam yam tsis ntxiv qhov nyuaj dhau.

Ua Haujlwm Nrog Cov Txheej Txheem Uas Twb Muaj Lawm

Kev koom ua ke cov fiber tshiab nrog cov tes hauj lwm uas twb muaj lawm yuav tsum tau soj ntsuam zoo. Piv txwv li, OM3 thiab OM4 fibers zoo heev rau cov tes hauj lwm uas xav tau 10Gb/s txog 100Gb/s ceev. OM4 muaj cov txiaj ntsig ntxiv, xws li qhov deb ntev dua thiab cov peev nyiaj kho qhov muag siab dua, ua rau nws yog qhov kev hloov kho tshiab uas tsim nyog rau kev tiv thaiv yav tom ntej.

Kev sib raug zoo nrog cov khoom siv tam sim no, xws li cov transceivers thiab cov switches, yuav tsum tau txheeb xyuas kom tsis txhob muaj teeb meem. Cov fibers ib hom, zoo li OS cables, ua haujlwm ntawm 1310 lossis 1550 nm wavelengths thiab xav tau cov laser kim dua, uas ua rau cov nqi sib koom ua ke nce ntxiv. Kev soj ntsuam cov yam no thaum ntxov tuaj yeem tiv thaiv kev tsis sib xws thiab kev ncua sijhawm.

Hom Txuas thiab Kev Sib Xws

Qhov no yog vim tias cov kab ke fiber optic txuas nrog siv ntau hom connectors xws li LC, SC, lossis MPO/MTP. Cov connectors no yuav tsum phim cov khoom siv interface kom meej meej kom tso cai rau kev koom ua ke zoo rau hauv tus qauv. Piv txwv li, OM5 cables tau optimized rau kev hloov pauv hauv qhov ntau ntawm 40Gb/s txog 100Gb/s.

Lawv siv cov khoom sib txuas MPO los txo cov xov hlau uas xav tau. Kev xaiv cov khoom sib txuas kom raug tsis yog tsuas yog cuam tshuam rau qhov yooj yim ntawm kev teeb tsa xwb, tab sis kuj tseem cuam tshuam rau kev ua tau zoo, tshwj xeeb tshaj yog hauv cov ntawv thov ceev ceev.

Tsis Txhob Muaj Teeb Meem Sib Koom Ua Ke

Cov teeb meem loj hlob feem ntau tuaj yeem yog kev poob rau hauv qhov ntxiab ntawm kev hla dhau qhov kev kuaj xyuas kev sib raug zoo thiab tsis quav ntsej txog kev nthuav dav yav tom ntej. Kev siv cov fiber ntau multimode zoo dua xws li OM4 tuaj yeem txo cov nqi tag nrho ntawm lub kaw lus los ntawm 1%.

Cov fibers no ua rau muaj kev tsim kho tshiab ntxiv xws li wavelength division multiplexing (WDM). Kev suav nrog cov hloov pauv no ua rau kev hloov pauv yooj yim dua.

Cov Qauv Yav Tom Ntej hauv Kev Siv Tshuab Fiber Optic

Ua lub hauv paus ntawm cov txheej txheem sib txuas lus niaj hnub no, cov thev naus laus zis fiber optic txuas ntxiv hloov pauv kom tau raws li qhov xav tau ntawm kev xa cov ntaub ntawv sai dua thiab txhim khu kev qha dua. Nrog rau kev txhawb nqa ntawm cov thev naus laus zis tshiab thiab kev tsim cov qauv tom qab lawv, kev txhim kho zoo kawg nkaus tab tom tsim cov cib fim tshiab thiab hloov pauv lub ntsej muag ntawm cov tes hauj lwm fiber optic mus ib txhis.

Cov Txuj Ci Tshiab thiab Cov Qauv

Kev qhia txog cov thev naus laus zis tshiab thiab cov qauv vaj tse cog lus tias yuav hloov txoj kev uas peb xa tawm thiab tswj hwm cov tes hauj lwm fiber optic. Piv txwv li, lawv cov CS Connectors, uas tau kho kom zoo rau 200G thiab 400G daim ntawv thov, txhim kho kev ua haujlwm zoo hauv kev xa cov ntaub ntawv ntawm qhov ceev dua.

Cov khoom sib txuas me me no muab qhov ceev zoo dua thiab zoo rau cov chaw khaws ntaub ntawv thiab cov tes hauj lwm telecomm tiam tom ntej. Ib yam li ntawd, cov khoom sib txuas ntau fiber xws li MPO / MTP tau ua rau cov qauv tsim network yooj yim dua thiab ua haujlwm tau zoo dua los ntawm kev ua kom muaj bandwidth siab dua thiab muab sijhawm teeb tsa sai dua.

Kev ua tau zoo ntawm fiber optic tsis yog ib zaj dab neeg ntawm thev naus laus zis xwb. OM5 fiber ua haujlwm ntawm qhov ntev ntawm 850 nm. Qhov no suav nrog 880, 910 thiab 940 nm, uas ua rau muaj peev xwm ntau dua rau kev siv shortwave wavelength division multiplexing (SWDM).

Rau cov fibers multimode, OM4 qhov modal bandwidth zoo ntawm 4700 MHz.km—dhau ob zaug ntawm OM3's 2000 MHz.km—ua rau muaj peev xwm nqa cov ntaub ntawv ntau ntxiv.

Kev Txhim Kho Hauv OS thiab OM Fibers

Kev txhim kho hauv OS fibers thiab thev naus laus zis tam sim no ua haujlwm los daws qhov xav tau kev sib txuas lus ntev. Lawv ua kom muaj kev ua tau zoo tshaj plaws ntawm cov wavelengths tseem ceeb xws li 1310 nm thiab 1550 nm, qhov twg cov nqi qis attenuation, feem ntau 2.3 dB / km, yog qhov tseem ceeb.

Kev tsim cov fiber OM yog hais txog kev nce bandwidth thiab kev ua haujlwm zoo. Lawv txoj kev tsim qauv siab yog tsim los rau kev siv ntau yam xws li kev suav huab thiab kev txawj ntse ntawm cov tes hauj lwm.

Kev Hloov Pauv ntawm Cov Ntawv Thov Fiber Optic

Cov fiber optics tau loj hlob dhau lawv cov kev sib txuas lus qub txeeg qub teg los txhawb cov kev tsim kho tshiab xws li IoT, tsheb tsav tus kheej thiab cov nroog ntse. Los ntawm xyoo 2025, nrog 80% ntawm lub ntiaj teb cov ntaub ntawv hla dhau fiber, qhov kev hloov pauv qhia txog qhov kev ywj pheej ntawm thev naus laus zis hauv kev teb rau cov kev xav tau hloov pauv.

Xaus lus

Kev paub txog qhov sib txawv ntawm OS thiab OM fiber cables yuav cia koj xaiv qhov zoo tshaj plaws rau koj daim ntawv thov. Txhua tus muaj qhov zoo sib xws, txawm tias nws yog kev mus deb lossis kev ua haujlwm ceev ceev hauv thaj chaw ze dua. OM cables yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov luv dua hauv tsev lossis tsev kawm ntawv xws li cov chaw khaws ntaub ntawv, thaum OS cables tau tsim los npog kev mus deb yam tsis muaj teeb meem. Kev nkag siab txog kev ua tau zoo, tus nqi, thiab kev sib xws ntawm txhua hom ua rau nws yooj yim dua los txiav txim siab thiab tsis them tus nqi siab rau cov yam ntxwv uas koj tsis xav tau.

Cov fiber optics pheej nce qib tas li, ua rau muaj kev sib txuas lus sai dua thiab ua haujlwm tau zoo dua li yav dhau los. Kev kawm txog koj tus kheej txhais tau tias koj npaj tsis yog rau cov kev xav tau niaj hnub no xwb tab sis rau cov kev hloov tshiab tag kis. Txawm tias koj tab tom tsim lub network los ntawm kos lossis npaj kev hloov kho tshiab, kev xaiv qhov zoo hnub no txhais tau tias zam kev ua yuam kev kim thiab siv sijhawm ntau tag kis. Txuas ntxiv kawm koj tus kheej thiab ua cov peev txheej paub zoo, kev nqis peev zoo hauv koj cov kev xav tau kev sib txuas lus.

Cov Lus Nug Feem Ntau

Qhov txawv ntawm OS thiab OM fiber cables yog dab tsi?

OSSB (Optical Singlemode Solutions Based) cov fibers tau zoo rau kev xa cov ntaub ntawv ntev. Ntawm qhov tod tes, OM (Optical Multimode) fibers ua haujlwm tau zoo tshaj plaws ntawm qhov luv luv. OS cables tsuas yog siv ib txoj kev teeb thaum OM cables siv ntau txoj kev teeb sib txawv.

Cov xov hlau OM1, OM2, OM3, OM4, thiab OM5 siv rau dab tsi?

OM1 thiab OM2 feem ntau siv rau hauv cov ntawv thov qeeb qeeb, luv luv. OM3 thiab OM4 tau tsim los rau 10 gigabit thiab siab dua tes hauj lwm, zoo li cov uas pom hauv cov chaw khaws ntaub ntawv. OM5 ua rau muaj kev sib kis dav dav thiab cov thev naus laus zis tshiab xws li SWDM (Shortwave Wavelength Division Multiplexing).

OS1 thiab OS2 txawv li cas?

OS1 muaj qhov buffering nruj tshaj plaws uas tau tsim los rau kev siv sab hauv tsev, thaum OS2 tau tsim los rau kev siv sab nraum zoov lossis hauv av. OS2 muaj qhov attenuation qis dua, tso cai rau kev ncav cuag ntev dua nrog kev ua tau zoo dua.

Cov xov hlau OM puas sib xws nrog cov xov hlau OS?

Cov lus teb rau qhov ntawd yog tsis yog - OM vs OS cables tsis tuaj yeem hloov pauv tau. Lawv txawv ntawm qhov loj me ntawm lub hauv paus thiab qhov uas lub teeb kis mus rau hauv lub hauv paus. Txhawm rau kom ua tiav cov txiaj ntsig zoo tshaj plaws, siv cov cables uas tau tsim los kom haum rau koj lub cev cov kev xav tau tshwj xeeb.

Cov cable fiber twg zoo tshaj plaws rau 100G networks?

Rau 100G tes hauj lwm, OM4 lossis OM5 yog qhov zoo rau kev teeb tsa multimode. Rau singlemode, OS2 yog qhov kev xaiv tsim nyog, vim nws tuaj yeem txhawb nqa qhov deb ntev dua ntawm qhov ceev ceev.

Tus nqi sib txawv li cas ntawm OS thiab OM cables?

Cov xov hlau OS feem ntau kim dua vim lawv qhov kev ua tau zoo tshaj plaws ntawm kev mus deb. Cov xov hlau OM pheej yig dua, lawv tsuas yog siv rau kev sib kis luv dua xwb.

Thaum xaiv cov fiber cable, kuv yuav tsum xav txog dab tsi?

Xav txog tej yam xws li qhov deb, qhov xav tau ceev, qhov xwm txheej kaw (sab hauv tsev piv rau sab nraum zoov), kev txuas mus rau hauv cov khoom siv tam sim no thiab lwm yam. OS rau cov ntawv thov deb thiab OM rau cov ntawv thov ceev ceev, luv luv.