Umgama wokuhanjiswa kwe-fiber ye-single-mode: i-64-channel transmission ye-40G Ethernet ingaba yi-2,840 yeekhilomitha kwikhebula lemodi enye. I-fiber yemowudi enye ubukhulu becala yenziwe ngundoqo, i-cladding layer kunye ne-coating layer.I-core yenziwe ngezinto ezibonakalayo ezibonakalayo.I-cladding ine-index ye-refractive encinci kune-core, ibangele i-optical waveguide effect evumela uninzi. kwintsimi ye-electromagnetic ukuba ibanjwe kwi-core.I-coating acts ukukhusela I-fiber ikhuselwe kumswakama kunye ne-mechanical abrasion, ngelixa inyusa ukuguquguquka kwefiber. Ngaphandle kwengubo yokugqoka, ijacket yeplastiki isoloko yongezwa.
Yintoni umahluko phakathi kwefayibha yemowudi enye kunye nefayibha yemultimode?
Umahluko kwisalathiso se-refractive: Iifiber zemowudi enye zisebenzisa iprofayili yesalathiso senyathelo. Iifibers ze-Multimode zingasebenzisa iiprofayili zesalathisi okanye i-profiles indexed indexed.Ngoko ke, iifayili ze-quartz nazo zingasebenzisa ngokubanzi iifayili ze-multimode ze-index index, i-multimode graded index fibers, kunye ne-mode single step index fibers. Iintlobo ezintathu.
Umahluko kwimodi yokuhambisa: i-fiber yemowudi enye inokuhambisa imowudi enye kuphela kwi-wavelength enikeziweyo yokusebenza, kwaye i-multimode fiber inokuhambisa iindlela ezininzi. ibonakaliswe ngokupheleleyo kujongano lwesiphakathi, i-electromagnetic wave ivalelwe phakathi, ebizwa ngokuba ngamaza akhokelwayo okanye imo ekhokelwayo. Kwi-wave wave ekhokelwayo kunye nobude bokusebenza, kukho iimeko ezahlukeneyo zezehlo ezanelisa iimeko zokubonakalisa ngokupheleleyo, ezibizwa ngokuba ziindlela ezahlukeneyo zamaza akhokelwayo. Ukwahlulwe kwifiber ye-multimode kunye nefayibha yemowudi enye kwindlela yokuhambisa.
Umahluko kumgama wothumelo: umgama wothumelo kunye nokuhanjiswa kwebhanwidth yefiber yemodi enye ngokucacileyo ngenxa yefiber yemultimode. Ukuba umgama wothumelo mkhulu kuneekhilomitha ezi-5, isignali yedatha yebhanti enkulu ihanjiswa ixesha elide ukukhetha i-fiber yemowudi enye.Ukuba umgama wokuhambisa iikhilomitha ezimbalwa kuphela, i-multi-mode iyona nto ingcono kakhulu kuba i-LED umthumeli/umamkeli ufuna ukukhanya kwelaser kunendlela enye. Ixabiso eliphantsi kakhulu.
Umahluko kwi-wavelength ye-fiber transmission: i-fiber ye-mode eyodwa inomlinganiselo omncinci ongundoqo kwaye unokuhanjiswa kuphela kwimodi enye kwi-wavelength yokusebenza enikeziweyo, kunye ne-bandwidth yokuhambisa kunye nomthamo omkhulu wokuhambisa. Ifiber ye-Multimode yifiber ebonakalayo enokuthi idlulise ngaxeshanye kwiindlela ezininzi kwi-wavelength yokusebenza enikeziweyo. I-Multimode ifayibha inokuhanjiswa okungahambi kakuhle kunefiber yemowudi enye.