I-optical fiber iyi-fiber eyenziwe ngengilazi noma ngepulasitiki, futhi i-fiber ngokwayo iyaphuka kalula futhi iyaphuka kalula. Ukuhlanganisa i-fiber encane esikhumbeni sepulasitiki kuvumela ukuthi igobeke ngaphandle kokuphuka. Ikhebula eline-optical fiber eligoqwe esikhwameni esivikelayo libizwa ngokuthi ikhebula le-optical. Ingabe ikhebula le-optical lingagobeka ngokuthanda?
Njengoba i-fiber izwa ukucindezelwa, ukuyigoba kungabangela ukuthi isignali ye-optical ivuze nge-fiber cladding, futhi njengoba ukugoba kuba sobala kakhulu, isignali ye-optical izovuza nakakhulu. Ukugoba kungabangela nemifantu emincane engalimaza unomphela i-fiber. Ngaphandle kwenkinga ngokwayo, amaphuzu okugoba amancane kunzima ukuwathola futhi adinga imishini yokuhlola ebizayo; okungenani, ama-jumper kumele ahlanzwe noma ashintshwe. Ukugoba i-fiber kungabangela ukugoba kwe-fiber. Inani lokugoba ngenxa yokugoba kwe-fiber liyanda njengoba i-radius yokugoba incipha. Ukugoba ngenxa yokugoba kukhulu ku-1550 nm kunaku-1310 nm, futhi kukhulu nakakhulu ku-1625 nm. Ngakho-ke, lapho ufaka ama-fiber jumper, ikakhulukazi endaweni yokuxhuma izintambo eziphezulu, i-jumper akufanele igobe ngaphezu kwe-radius yayo yokugoba eyamukelekayo. Ngakho-ke, iyini i-radius efanele yokugoba?
Irediyasi yokugoba yefayibha yi-engeli lapho ifayibha ingagoba khona ngokuphephile kunoma iyiphi indawo. Amarediyasi okugoba kwefayibha ayahluka kuzo zonke izintambo kanye nezintambo zokunamathisela futhi angahluka kuye ngohlobo lwekhebula kanye nenqubo yokukhiqiza. Irediyasi yokugoba encane incike kububanzi kanye nohlobo lwekhebula le-optical; ifomula evame ukusetshenziswa yile: irediyasi yokugoba encane = ububanzi bangaphandle bekhebula le-optical x ubuningi bobubanzi bekhebula le-optical.
Izinga elisha le-ANSI/TIA/EIA-568B.3 lichaza irediyasi encane yokugoba kanye nezindinganiso zamandla okudonsa aphezulu kwamakhebuli e-fiber optic angu-50/125 micron kanye no-62.5/125 micron. Irediyasi encane yokugoba incike kukhebuli ethize ye-fiber optic. Ngaphansi kokucindezeleka, irediyasi yokugoba yekhebuli ye-fiber optic ngokuvamile akufanele ibe ngaphansi kwezikhathi eziyishumi zobubanzi bangaphandle (OD) bekhebuli ye-fiber optic. Ngaphansi komthwalo wokugoba, irediyasi yokugoba iphindwe izikhathi ezingu-15 kunobubanzi bangaphandle bekhebuli ye-fiber optic. Izindinganiso zemboni zamakhebuli e-patch endabuko yemodi eyodwa zivame ukucacisa irediyasi encane yokugoba ephindwe kayishumi kunobubanzi bangaphandle bekhebuli eboshwe ngejakethi noma amasentimitha angu-1.5 (38 mm), noma yikuphi okukhulu. I-fiber ye-G652 esetshenziswa njalo inerediyasi encane yokugoba engu-30 mm.
I-G657, eye yasetshenziswa eminyakeni yamuva nje, inerediyasi encane yokugoba, okuhlanganisa i-G657A1, i-G657A2, kanye ne-G657B3. Irediyasi encane yokugoba ye-G657A1 ingu-10 mm, ye-G657A2 ingu-7.5 mm, kanti ye-G657B3 ingu-5 mm. Lolu hlobo lwefayibha lusekelwe kufayibha ye-G652D, ethuthukisa izici zokunciphisa ukugoba kanye nezici zejiyometri zefayibha, ngaleyo ndlela ithuthukise izici zayo zokuxhuma. Yaziwa nangokuthi ifayibha engazweli ukugoba. Isetshenziswa kakhulu ku-FTTx kanye ne-FTTH, ifanele ukusetshenziswa ezindaweni ezincane zangaphakathi noma emakhoneni.
Kokubili ukuphuka kwefayibha kanye nokuncipha okukhulu kungathinta kakhulu ukuthembeka kwenethiwekhi yesikhathi eside, izindleko zokusebenza kwenethiwekhi, kanye nekhono lokugcina nokukhulisa isisekelo samakhasimende. Ngakho-ke, sidinga ukuqonda ngokucacile irediyasi encane yokugoba kwefayibha ukuze sigcine intambo yekhebula noma ye-patch isesimweni esihle sokusebenza.
Isikhathi sokuthunyelwe: Novemba-11-2022
