Kusukela ngasekupheleni kweminyaka yawo-1980, ukuxhumana kwe-fiber-optic kancane kancane kwashintsha kusuka kubude obufushane kuya kubude begagasi ende, kusuka ku-multimode fiber kuya ku-fiber yemodi eyodwa. Njengamanje, i-fiber yemodi eyodwa isetshenziswa kabanzi kunethiwekhi yesiqu sekhebula kazwelonke kanye nenethiwekhi yomugqa wesifundazwe. I-Multimode fiber ikhawulelwe kuphela kwamanye ama-LAN anejubane eliphansi.Okwamanje, ifayibha abantu abakhuluma ngayo isho ifayibha yemodi eyodwa. I-fiber yemodi eyodwa inezinzuzo zokulahlekelwa okuphansi, umkhawulokudonsa omkhulu, ukuthuthukiswa okulula nokunwetshwa, nezindleko eziphansi, futhi isetshenziswa kabanzi.
Njengoba izidingo zokuphila zabantu ziba ngcono nakakhulu, i-inthanethi iba yingxenye ebalulekile yokuphila.Ukuze ihambisane nokuthuthukiswa kwenkathi yolwazi, ubuchwepheshe bezintambo ezihlanganisiwe kanye nemikhiqizo ivuselelwa njalo, ikakhulukazi ucwaningo olukhulu nokuthuthukiswa kwezintambo ze-fiber optic. . Kunezinhlobo eziningi ezahlukene zezintambo ze-fiber optic zezinhlobo ezahlukene kanye nokusetshenziswa emakethe. Ungakhetha kanjani uhlobo olusebenzayo ebusweni bezintambo eziningi ze-optical? Ungakhetha kanjani imikhiqizo engcono kakhulu ye-fiber optic?
Izigaba eziyinhloko zefiber optical
Ngokwesigaba semodi yokudlulisela, i-fiber optical inezinhlobo ezimbili ze-multimode fibre kanye ne-single mode fiber. Ifayibha ye-Multimode ingadlulisela izindlela ezimbalwa, kuyilapho i-fiber yemodi eyodwa ingadlulisela imodi eyodwa kuphela ngobude obunikeziwe bokusebenza. Imicu ye-multimode esetshenziswa kakhulu ikakhulukazi i-50/125m kanye ne-62.5/125m. Idayamitha eyinhloko yefayibha yemodi eyodwa ngokuvamile i-9/125 m. I-Multimode fiber—umgogodla ujiyile (50 noma 62.5m). Njengoba i-geometry yefayibha (ikakhulukazi i-diameter eyinhloko engu-d1) inkulu kakhulu kunobude begagasi bokukhanya (cishe imakhronu engu-1), kunenqwaba noma ngisho namakhulu emicu. Imodi yokusabalalisa.Ngaso leso sikhathi, ngenxa yokuhlakazeka okukhulu phakathi kwezindlela, imvamisa yokudlulisela inqunyelwe, futhi ukwanda ngebanga kubi kakhulu.Ngokwezici ezingenhla, ama-multimode optical fibers asetshenziswa kakhulu kumanethiwekhi anamazinga okudlulisela aphansi uma kuqhathaniswa. kanye namabanga amafishane uma kuqhathaniswa, njengamanethiwekhi endawo. Amanethiwekhi anjalo ngokuvamile anama-node amaningi, amalunga amaningi, ama-bend amaningi, nezixhumi nezixhumi. Inombolo yezingxenye, inani lamadivayisi asebenzayo asetshenziswa ngeyunithi ngayinye ubude befayibha, njll., ukusetshenziswa kwe-multimode fiber kunganciphisa izindleko zenethiwekhi.
I-fiber yemodi eyodwa inomgogodla omncane (ngokuvamile mayelana ne-9 m) futhi ingadlulisela kuphela indlela eyodwa yokukhanya.Ngakho-ke, ukuhlakazeka phakathi kwamamodi kuncane kakhulu, kulungele ukuxhumana okukude, kodwa kusekhona ukuhlakazeka kwezinto ezibonakalayo kanye nokuhlakazeka kwe-waveguide, ngakho-ke. i-fiber yemodi eyodwa inezidingo eziphakeme zobubanzi be-spectral nokuzinza komthombo wokukhanya, okungukuthi, ububanzi be-spectral kufanele bube buncane, futhi ukuzinza kube kuhle.I-fiber yemodi eyodwa isetshenziswa kakhulu emigqeni enebanga elide lokudlulisela futhi ngokuqhathaniswa izinga eliphezulu lokudlulisela, elifana nokudluliswa kwetrunk ebangeni elide, ukwakhiwa kwenethiwekhi yendawo yedolobha elikhulu, njll. Amanethiwekhi amanje e-FTTx kanye ne-HFC ikakhulukazi amafayibha emodi eyodwa.
Umehluko phakathi kwama-transceivers e-fiber yemodi eyodwa kanye nama-multimode fiber transceivers
I-fiber optic transceiver iyithuluzi lokuguqula eliphakathi kwe-Ethernet elishintshanisa amasignali kagesi nawe-optical e-Ethernet, futhi imicu yokubona edlulisela idatha ngenethiwekhi ihlukaniswa ibe imicu ye-multimode kanye nemicu yemodi eyodwa.Kusukela kuhlelo lokusebenza lwenethiwekhi, ngoba i-multimode fiber ayikwazi idluliswa amabanga amade, ingasetshenziswa kuphela ukuxhumana ngaphakathi kwezakhiwo naphakathi kwezakhiwo. Nokho, ngenxa yokuthi i-multimode fiber kanye ne-fiber transceiver ehambisanayo ishibhile, isengaphakathi kobubanzi obuthile.Uthole uhlelo lokusebenza. Izikole eziningi zisebenzisa i-multimode fiber lapho zakha inethiwekhi yekhampasi yangaphakathi.
Ngokuthuthuka kobuchwepheshe, i-fiber yemodi eyodwa yaqala ukungena emisebenzini yokuxhumana ekude (isuka kumakhilomitha ambalwa ukuya ngaphezu kwamakhilomitha ayikhulu), futhi umfutho wentuthuko uyashesha kakhulu, eminyakeni embalwa, kusukela ekusetshenzisweni okuphezulu amakhaya abantu abavamile, Isibonelo, amakhaya amaningi manje asebenzisa ama-transceiver optical (okuthiwa imodi ye-FTTH, i-fiber-to-the-home) lapho evula inethiwekhi. Ukusetshenziswa kwama-optical transceivers sekuyindlela ejwayeleke kakhulu yezinsizakalo zokwengezwa kwe-value yokusakaza nomabonakude.
Ukusebenzisa i-fiber optic transceivers yokuxhumana, izinzuzo azigcini nje ngokuzinza, kodwa yini enye? Ijubane lelo! I-duplex engu-100M egcwele, isivinini esikhulu nakakhulu kune-duplex engu-100 egcwele: 1000M i-duplex egcwele.
Yelula umkhawulo webanga lokudlulisa inethiwekhi ukusuka ku-100M ukuya ngaphezu kuka-100KM kumapheya asontekile, engabona kalula ukuxhumana phakathi kweseva yebhodi lomama, i-repeater, ihabhu, itheminali kanye netheminali. Lapho sikhetha i-fiber-optic networking, sizoqinisa ukuqonda kwe-fiber optical, sandise ulwazi olufanele, futhi sikhethe i-fiber esebenza kahle kakhulu ngokucabangela okuphelele.