Nthawi zambiri, pali mitundu iwiri ya ulusi: yomwe imathandizira njira zambiri zofalitsira kapena njira zodutsa zimatchedwa ma multi-mode fibers (MMF), ndipo omwe amathandiza njira imodzi amatchedwa single-mode fibers (SMF). Koma pali kusiyana kotani pakati pawo? Kuwerenga nkhaniyi kukuthandizani kupeza yankho.
Chidule cha Single Mode Vs Multimode Fiber Optic Cable
Single mode CHIKWANGWANI amalola kufalikira kwa mode kuwala kamodzi kokha, pamene multimode kuwala CHIKWANGWANI akhoza kufalitsa angapo modes. Kusiyana kwakukulu pakati pawo ndi fiber core diameter, wavelength & light source, bandwidth, sheath color, mtunda, mtengo, etc.
Single Mode Vs Multimode Fiber, Pali Kusiyana Kotani?
Nthawi yofananiza single mode vs. multimodekuwala CHIKWANGWANIndi kumvetsa kusiyana kwawo.
Core Diameter
Chingwe cha Single Mode chili ndi kukula kocheperako, komwe nthawi zambiri kumakhala 9μm, kumathandizira kutsika, ma bandwidth apamwamba, komanso mtunda wautali wotumizira.
Mosiyana, Multimode kuwala CHIKWANGWANI ali lalikulu pachimake kukula, kawirikawiri 62.5μm kapena 50μm, ndi OM1 pa 62.5μm ndi OM2/OM3/OM4/OM5 pa 5μm. Ngakhale pali kusiyana mu kukula, izo siziwoneka mosavuta kwa maliseche monga iwo ndi ang'onoang'ono kuposa m'lifupi tsitsi la munthu. Kuyang'ana kachidindo kosindikizidwa pa chingwe cha fiber optic kungathandize kuzindikira mtundu wake.
Ndi zotchinga zoteteza, onse single mode ndi multimode ulusi ndi awiri a 125μm.
Wavelength & Gwero Lowala
Multimode optical fiber, ndi kukula kwake kwakukulu, imagwiritsa ntchito magetsi otsika mtengo monga kuwala kwa LED ndi VCSELs pa 850nm ndi 1300nm wavelengths. Mosiyana ndi izi, chingwe cha single mode chokhala ndi core yake yaying'ono, chimagwiritsa ntchito ma lasers kapena ma laser diode kupanga kuwala kobaya mu chingwe, nthawi zambiri pamafunde a 1310nm ndi 1550nm.
Bandwidth
Mitundu iwiri ya fiber iyi imasiyana mu mphamvu za bandwidth. Ulusi wamtundu umodzi umapereka pafupifupi bandiwifi yopanda malire chifukwa chothandizira mtundu umodzi wamagetsi, zomwe zimapangitsa kuti pakhale kutsika komanso kubalalitsidwa. Ndilo chisankho chomwe chimakondedwa pamalumikizidwe othamanga kwambiri pamtunda wautali.
Kumbali inayi, ulusi wa multimode ukhoza kutumiza mitundu ingapo ya kuwala, koma imakhala ndi kutsika kwambiri komanso kubalalitsidwa kwakukulu, kumachepetsa bandwidth yake.
Ulusi wamtundu umodzi umaposa ma multimode optical fiber malinga ndi kuchuluka kwa bandwidth.
Kuchepetsa
Ulusi wa single-mode umakhala wocheperako, pomwe ulusi wa multimode umakhala wovuta kuchepetsedwa.
Mtunda
Single mode mode attenuation m'munsi ndi mode kubalalitsidwa kumathandiza kufala mtunda wautali kuposa multimode. Multimode ndiyotsika mtengo koma imangokhala ndi maulalo amfupi (mwachitsanzo, 550m ya 1Gbps), pomwe mawonekedwe amodzi amagwiritsidwa ntchito pakupatsirana kwakutali kwambiri.
Mtengo
Poganizira za mtengo wonse, zigawo zitatu zimagwira ntchito yofunika kwambiri.
Kuyika Mtengo
Mtengo woyika wa fiber single-mode nthawi zambiri umadziwika kuti ndi wokwera kuposa chingwe cha multimode chifukwa cha zabwino zake. Komabe, zenizeni ndi zosiyana. chifukwa cha kupanga bwino, kupulumutsa 20-30% poyerekeza ndi multimode fiber. Pazingwe zamtengo wapatali za OM3/OM4/OM5, single-mode imatha kusunga mpaka 50% kapena kupitilira apo. Komabe, mtengo wa transceiver wa kuwala uyeneranso kuganiziridwa.
Mtengo wa Optical Transceiver
Transceiver ya kuwala ndi gawo lamtengo wapatali mu fiber cabling, kuwerengera gawo lalikulu, nthawi zina mpaka 70% ya mtengo wonse. Ma transceivers amtundu umodzi nthawi zambiri amawononga 1.2 mpaka 6 kuposa ma multimode. Izi zili choncho chifukwa single mode imagwiritsa ntchito ma laser diode amphamvu kwambiri (LD), omwe ndi okwera mtengo, pomwe zida za multimode nthawi zambiri zimagwiritsa ntchito ma LED kapena ma VCSELS otsika mtengo.
Mtengo Wokweza System
Ndi kupita patsogolo kofulumira kwaukadaulo, makina opangira ma cabling nthawi zambiri amafunikira kukweza ndi kukulitsa. Single mode fiber optic cabling imapereka kusinthika kwakukulu, kusinthasintha, komanso kusinthika. Chingwe cha Multimode, chifukwa cha bandwidth yake yocheperako komanso kuthekera kwake kwapamtunda pang'ono, zitha kuvutikira kuti zikwaniritse zofunikira zamtsogolo zapaulendo wautali komanso wokwera kwambiri.
Kukweza njira imodzi ya fiber optic system ndikosavuta, kumangosintha kusintha ndi ma transceivers popanda kufunika koyika ulusi watsopano. Mosiyana ndi izi, pa chingwe cha multimode, kukweza kuchokera ku OM2 kupita ku OM3 ndiyeno kupita ku OM4 kwa kufalikira kwachangu kungapangitse ndalama zambiri, makamaka posintha ulusi woikidwa pansi.
Mwachidule, ma multimode ndi okwera mtengo kwa mtunda waufupi, pomwe mawonekedwe amodzi ndi abwino kwa mtunda wapakatikati kapena wautali.
Mtundu
Kuyika mitundu kumathandizira kuzindikira mtundu wa chingwe. TlA-598C imapereka kachidindo kopangidwa ndi makampani kuti azindikire mosavuta.
Multimode OM1 ndi OM2 nthawi zambiri amakhala ndi jekete ya lalanje.
OM3 nthawi zambiri imakhala ndi jekete zamtundu wa Aqua.
OM4 nthawi zambiri imakhala ndi jekete zamtundu wa Aqua kapena Violet.
OM5 inali yamtundu wa laimu wobiriwira.
Single mode OS1 ndi OS2 nthawi zambiri amakhala ndi ma jekete a Yellow.
Kugwiritsa ntchito
Chingwe chamtundu umodzi chimagwiritsidwa ntchito makamaka pamakina akutali ndi ma metro pama telecom, datacom, ndi ma netiweki a CATV.
Kumbali inayi, chingwe cha multimode chimayikidwa makamaka pamapulogalamu akutali monga ma data center, cloud computing, security systems, ndi LANs (Local Area Networks).
Mapeto
Pomaliza, single-mode fiber cabling ndi yabwino kufalitsa kwanthawi yayitali mu ma network onyamula, ma MAN, ndi ma PON. Komano, ma multimode fiber cabling amagwiritsidwa ntchito kwambiri m'mabizinesi, malo opangira data, ndi ma LAN chifukwa chakufupika kwake. Chofunikira ndikusankha mtundu wa fiber womwe umagwirizana bwino ndi netiweki yanu poganizira za mtengo wa fiber. Monga wopanga ma netiweki, kupanga chisankho ichi ndikofunikira kuti ma network akhazikike bwino komanso odalirika.
Nthawi yotumiza: Jun-19-2025