Ngokuvamile, kunezinhlobo ezimbili zemicu: lezo ezisekela izindlela eziningi zokusakazeka noma izindlela eziguquguqukayo zibizwa ngokuthi ama-multi-mode fibers (MMF), kanti lawo asekela imodi eyodwa abizwa ngokuthi ama-single-mode fibers (SMF). Kodwa yini umehluko phakathi kwabo? Ukufunda lesi sihloko kuzokusiza uthole impendulo.
Uhlolojikelele Lwemodi Eyodwa Vs Multimode Fiber Optic Cable
I-fiber yemodi eyodwa ivumela ukusabalala kwemodi yokukhanya eyodwa ngesikhathi, kuyilapho i-multimode optical fiber ingasakaza izindlela eziningi. Umehluko oyinhloko phakathi kwawo ukububanzi be-fiber core, ubude be-waveleng & umthombo wokukhanya, umkhawulokudonsa, umgodla wombala, ibanga, izindleko, njll.
I-Single Mode Vs Multimode Fiber, Uyini Umehluko?
Isikhathi sokuqhathanisa imodi eyodwa vs. multimodei-fiber opticalfuthi baqonde ukuhlukana kwabo.
I-Core Diameter
Ikhebuli Yemodi Eyodwa inosayizi oyinhloko omncane, ngokuvamile ongu-9μm, ovumela ukuncipha, ama-bandwidths aphezulu, namabanga amade okudlulisela.
Ngokuphambene, i-Multimode optical fiber inosayizi omkhulu oyinhloko, ngokuvamile i-62.5μm noma i-50μm, ne-OM1 ku-62.5μm kanye ne-OM2/OM3/OM4/OM5 ku-5μm. Nakuba kunomehluko ngosayizi, akubona kalula kwangaphambi kokuba nqunu ngoba mancane kunobubanzi bomuntu. Ukuhlola ikhodi ephrintiwe kukhebuli ye-fiber optic kungasiza ukukhomba uhlobo.
Nge-cladding yokuzivikela, kokubili imodi eyodwa kanye nemicu ye-multimode inobubanzi obuyi-125μm.
I-Wavelength & Umthombo Wokukhanya
I-Multimode optical fiber, enosayizi wayo omkhulu oyinhloko, isebenzisa imithombo yokukhanya engabizi kakhulu njengokukhanya kwama-LED nama-VCSEL ku-850nm naku-1300nm wavelengths. Ngokuphambene, ikhebuli yemodi eyodwa enomongo wayo omncane, isebenzisa amalaser noma ama-laser diode ukukhiqiza ukukhanya okujovwe kukhebula, ngokuvamile kumaza wamaza angu-1310nm no-1550nm.
Umkhawulokudonsa
Lezi zinhlobo ezimbili zefayibha ziyehluka ngamakhono omkhawulokudonsa. I-fiber yemodi eyodwa inikeza cishe umkhawulokudonsa ongenamkhawulo ngenxa yokwesekwa kwayo kwemodi yomthombo wokukhanya owodwa, okuholela ekuncipheni nasekuhlakazekeni. Kuyinketho ekhethwayo yokuxhumana ngocingo okunesivinini esikhulu emabangeni amade.
Ngakolunye uhlangothi, i-multimode fiber ingadlulisela izindlela eziningi zokubona, kodwa inokunciphiswa okuphezulu nokuhlakazeka okukhulu, okukhawulela umkhawulokudonsa wayo.
I-fiber yemodi eyodwa idlula i-multimode optical fiber ngokomthamo womkhawulokudonsa.
Ukunciphisa
I-fiber yemodi eyodwa inokuncipha okuphansi, kuyilapho i-multimode fiber isengozini yokuncisha amandla.
Ibanga
Ukuncishiswa okuphansi kwekhebula lemodi eyodwa kanye nokuhlakazwa kwemodi kunika amandla amabanga amade kakhulu okudlulisela kune-multimode. I-Multimode iyonga kakhulu kodwa ikhawulelwe kuzixhumanisi ezimfushane (isb, 550m ye-1Gbps), kuyilapho imodi eyodwa isetshenziselwa ukudlulisela okude kakhulu.
Izindleko
Lapho kucutshungulwa izindleko eziphelele, izingxenye ezintathu zidlala indima ebalulekile.
Izindleko Zokufaka
Izindleko zokufakwa kwefayibha yemodi eyodwa ngokuvamile zibhekwa njengeziphakeme kunekhebula le-multimode ngenxa yezinzuzo zayo. Nokho, iqiniso liphambene. sibonga ukukhiqiza okusebenza kahle kakhulu, konga u-20-30% uma kuqhathaniswa ne-multimode fiber. Kumafayibha entengo angu-OM3/OM4/OM5, imodi eyodwa ingonga kufika ku-50% noma ngaphezulu. Kodwa-ke, izindleko ze-optical transceiver nazo kufanele zicatshangelwe.
Izindleko ze-Optical Transceiver
I-optical transceiver iyingxenye yezindleko ezibalulekile ku-fiber cabling, ibalwa ingxenye enkulu, ngezinye izikhathi ifinyelela ku-70% yenani eliphelele. Ama-transceiver emodi eyodwa ngokuvamile abiza izikhathi ezingu-1.2 kuya kwezingu-6 ngaphezu kwe-multimode. Lokhu kungenxa yokuthi imodi eyodwa isebenzisa i-laser diode yamandla aphezulu (LD), emba eqolo, kuyilapho amadivayisi e-multimode ngokuvamile esebenzisa ama-LED abiza kancane noma ama-VCSELS.
Izindleko Zokuthuthukisa Isistimu
Ngokuthuthuka okusheshayo kwezobuchwepheshe, amasistimu amakhebula ngokuvamile adinga ukuthuthukiswa nokwandiswa. Imodi eyodwa ye-fiber optic cabling inikezela ngokuqina okukhulu, ukuguquguquka, kanye nokuvumelana nezimo. Ikhebuli ye-Multimode, ngenxa yomkhawulokudonsa wayo olinganiselwe namandla webanga elifushane, ingase ithwale kanzima ukuhlangabezana nezidingo zesikhathi esizayo zokudlulisa isignali yebanga elide nevolumu ephezulu.
Ukuthuthukisa isistimu ye-fiber optic yemodi eyodwa kuqonde kakhudlwana, kuhilela ukushintsha kuphela isishintshi nama-transceivers ngaphandle kwesidingo sokubeka imicu emisha. Ngokuphambene, kukhebuli ye-multimode, ukuthuthukisa isuka ku-OM2 iye ku-OM3 bese kuya ku-OM4 yokudlulisela ngesivinini esiphezulu kuzofaka izindleko eziphakeme kakhulu, ikakhulukazi uma ushintsha imicu ebekwe ngaphansi.
Kafushane, i-multimode iyabiza kumabanga amafushane, kanti imodi eyodwa ilungele amabanga aphakathi nendawo ukuya kwamade.
Umbala
Ukubhala ikhodi kombala kwenza kube lula ukuhlonza uhlobo lwekhebula. I-TlA-598C ihlinzeka ngekhodi yombala ephakanyisiwe yomkhakha ukuze ibonakale kalula.
I-Multimode OM1 ne-OM2 imvamisa inebhantshi eliwolintshi.
I-OM3 ivamise ukuba namabhantshi ombala we-Aqua.
I-OM4 ivamise ukuba namajakhethi anombala we-Aqua noma we-Violet.
I-OM5 yayinombala oluhlaza okotshani.
Imodi eyodwa OS1 kanye ne-OS2 ngokuvamile enamajakhethi Aphuzi.
Isicelo
Ikhebula lemodi eyodwa lisetshenziswa ngokuyinhloko kumgogodla webanga elide kanye nezinhlelo ze-metro ku-telecom, i-datacom, namanethiwekhi e-CATV.
Ngakolunye uhlangothi, ikhebuli ye-multimode isetshenziswa kakhulu ezinhlelweni zokusebenza zamabanga amafushane njengezikhungo zedatha, i-cloud computing, izinhlelo zokuphepha, nama-LAN (Izinethiwekhi Zendawo Yendawo).
Isiphetho
Sengiphetha, i-fiber cabling yemodi eyodwa ilungele ukudluliswa kwedatha okufinyelele isikhathi eside kumanethiwekhi enkampani yenethiwekhi, ama-MAN, nama-PON. Ngakolunye uhlangothi, i-Multimode fiber cabling, isetshenziswa kakhulu emabhizinisini, ezikhungweni zedatha, nama-LAN ngenxa yokufinyelela kwayo okufushane. Okubalulekile ukukhetha uhlobo lwefayibha olufanelana kangcono nezidingo zenethiwekhi yakho kuyilapho ucabangela inani lezindleko zefayibha. Njengomklami wenethiwekhi, ukwenza lesi sinqumo kubalulekile ekusetheni inethiwekhi okusebenzayo nokuthembekile.
Isikhathi sokuthumela: Jun-19-2025