Ngokuthuthukiswa kwenethiwekhi kanye nokuthuthuka kobuchwepheshe, abakhiqizi abaningi bezingxenye ze-fiber optic baye bavela emakethe, bezama ukubamba ingxenye yomhlaba wenethiwekhi.Njengoba laba bakhiqizi bekhiqiza izingxenye ezihlukahlukene, umgomo wabo uwukwenza izingxenye ezisezingeni eliphezulu nezivumelanayo ukuze amakhasimende akwazi ukuxuba izingxenye ezihlukahlukene ezivela kubakhiqizi abahlukene.Lokhu kubangelwa ikakhulukazi ukukhathazeka kwezezimali, njengoba izikhungo eziningi zedatha zihlala zifuna izixazululo ezingabizi kakhulu zokuzisebenzisa kumanethiwekhi azo.
Ama-transceivers opticalziyingxenye ebalulekile yamanethiwekhi e-fiber optic.Baguqula futhi bashayele intambo ye-fiber optic kuyo.Aqukethe izingxenye ezimbili eziyinhloko: i-transmitter kanye nomamukeli.Uma kuziwa ekunakekeleni nasekuxazululeni izinkinga, kubalulekile ukwazi ukubikezela, ukuhlola, nokuthola ukuthi izinkinga zingenzeka noma zenzeke kuphi.Kwesinye isikhathi, uma uxhumo lungahlangabezani nezinga lephutha likabhithi elilindelekile, ngeke sikwazi ukubona ekuqaleni ukuthi iyiphi ingxenye yoxhumano edala inkinga.Kungaba ikhebula, i-transceiver, isamukeli noma kokubili.Ngokuvamile, imininingwane kufanele iqinisekise ukuthi noma yimuphi umamukeli uzosebenza kahle nanoma yisiphi isidluliseli esibi kakhulu, futhi okuphambene nalokho, noma yimuphi umthumeli uzohlinzeka ngophawu lwekhwalithi eyanele okufanele ilandwe yinoma yimuphi umamukeli omubi kakhulu.Imibandela yesimo esibi kakhulu ivamise ukuba yingxenye enzima kakhulu ukuyichaza.Kodwa-ke, kuvame ukuba nezinyathelo ezine zokuhlola isidluliseli nezingxenye zomamukeli we-transceiver.
Lapho kuhlolwa ingxenye yesidluliseli, ukuhlola kufaka phakathi ukuhlola ubude begagasi nokuma kwesiginali yokuphumayo.Kunezinyathelo ezimbili zokuhlola i-transmitter:
Okukhipha ukukhanya kwesidluliseli kumele kuhlolwe ngosizo lwamamethrikhi ambalwa ekhwalithi yokukhanya, njengokuhlola imaski, i-optical modulation amplitude (OMA), kanye nesilinganiso sokunyamalala.Hlola usebenzisa ukuhlola imaski ye-eye diagram, indlela evamile yokubuka amagagasi e-transmitter futhi unikeze ulwazi mayelana nokusebenza kwawo wonke komthumeli.Kumdwebo weso, zonke izinhlanganisela zamaphethini wedatha zibekwe phezulu kwelinye ku-eksisi yesikhathi esivamile, ngokuvamile engaphansi kwamabhithi amabili ububanzi.Ingxenye ethola ukuhlolwa iyingxenye eyinkimbinkimbi yenqubo, kodwa kukhona nezinyathelo ezimbili zokuhlola:
Ingxenye yokuqala yokuhlola iwukuqinisekisa ukuthi umamukeli angakwazi ukucosha isignali yekhwalithi embi futhi ayiguqule.Lokhu kwenziwa ngokuthumela ukukhanya kwekhwalithi embi kumamukeli.Njengoba lena kuyisignali yokubona, kufanele ilinganiswe kusetshenziswa izilinganiso zamandla e-jitter namandla okubona.Enye ingxenye yokuhlolwa ukuhlola okokufaka kukagesi kumamukeli.Phakathi nalesi sinyathelo, izinhlobo ezintathu zokuhlola kufanele zenziwe: ukuhlolwa kwemaski yeso ukuze kuqinisekiswe ukuvuleka kwamehlo okukhulu ngokwanele, ukuhlolwa kwe-jitter ukuhlola izinhlobo ezithile zenani le-jitter nokuhlola ukubekezelela i-jitter, kanye nokuhlolwa kwekhono lomamukeli lokulandelela i-jitter ngaphakathi kwayo. i-loop bandwidth.
Isikhathi sokuthumela: Sep-13-2022