Noma ngabe ukuxhuma imiphakathi noma ukuhambisa amazwekazi, ijubane nokunemba kuyizidingo ezimbili ezibalulekile zamanethiwekhi we-fiber optic aphethe ukuxhumana okubucayi komsebenzi. Abasebenzisi badinga izixhumanisi ezisheshayo ze-FTth kanye nokuxhumana kwe-5G Mobile ukufezekisa i-telemedicine, imoto ezizimele, umhlangano wevidiyo kanye nezinye izinhlelo zokusebenza ze-bandwidth ezinamandla. Ngokuvela kwesibalo esikhulu sezikhungo zedatha kanye nokuthuthukiswa okusheshayo kobuhlakani bokufakelwa kanye nokufunda komshini, okuhambisana nesivinini senethiwekhi esisheshayo nokusekelwa kwe-800g nangaphezulu, zonke izici eziyi-fiber ziye zaba zibalulekile.
Ngokusho kwe-ITU-T G.650.3 Isizinda Esijwayelekile, Isikhathi Sokugcina, i-Optical Forten Testing Test (OLTS), ukuhlolwa kwe-chromatic (CD), kanye ne-Polarization Mode Dissaverity (CD Ngakho-ke, ukuphatha amanani we-CD kubalulekile ekuqinisekiseni ubuqotho kanye nokusebenza kahle kokudlulisa.
Yize i-CD iyisici semvelo sayo yonke imicu ye-optical fibers, okuwukunwetshwa kwe-Broadband pulses ngamabanga amade, ngokusho kwe-ITU-T G.650.3 I-Optical Fibers enamanani wokuhambisa idatha adlula ama-10 GBP. I-CD ingayithinta kakhulu ikhwalithi yesiginali, ikakhulukazi ezinhlelweni zokuxhumana ezinejubane eliphezulu, futhi ukuhlolwa kuyisihluthulelo sokubhekana nale nselelo.
Yini i-CD?
Lapho ama-waveleng akhanyayo asakazwa ahlukene emicu ye-optical fibers, ukuhlakazwa kokukhanya kungadala ukunqwabelana nokuhlanekezela, ekugcineni kuholele ekunciphiseni kwekhwalithi yesiginali edlulisiwe. Kunezindlela ezimbili zokuhlakazeka: Ukuhlakazeka Kwezinto Ezibonakalayo Nokuhlakazeka Kwe-WaveGuide.
Ukuhlakazeka kwezinto ezibonakalayo kuyisici esingokwemvelo kuzo zonke izinhlobo zemicu ye-Optical, ezingadala ama-wavelength ahlukahlukene ukusakaza ngejubane elihlukile, ekugcineni okubangelwa ama-wavelength afinyelela ku-transciver eyihlane ngezikhathi ezihlukile.
Ukuhlakazeka kwe-waveguide kwenzeka ekwakhekeni kwe-waveGuide yemicu emihle, lapho amasiginali we-Optical asakazeka khona ngomgogodla nangokwezikhala zemicu, enama-indices ahlukile. Lokhu kuphumela ekushintsheni kobubanzi benkambu yemodi kanye nokwehluka kwesivinini sesiginali entanjeni ngayinye.
Ukugcina izinga elithile le-CD kubalulekile ukugwema ukwenzeka kweminye imiphumela engahlukanisi, ngakho-ke zero CD akulungelwa. Kepha i-CD kumele ilawulwe ezingeni elamukelekayo ukugwema imithelela emibi ekuboniseni ubuqotho kanye nekhwalithi yesevisi.
Uyini umthelela wohlobo lwefayibha ekuhlakazeni?
Njengoba kushiwo ngaphambili, i-CD yisici semvelo esingokwemvelo sanoma iyiphi i-fiber optical, kepha uhlobo lwefayibha ludlala indima ebalulekile ekuphatheni i-CD. Abasebenza nge-Network bangakhetha imicu "yemvelo" yokusakaza noma imicu enama-curve wokuhlakaza i-offveset ukunciphisa umthelela we-CD ngaphakathi kwebanga le-wavelength elithile.
I-fiber esetshenziswa kakhulu kumanethiwekhi wanamuhla yi-fiber ejwayelekile ye-ITU-T G.652 ngokuhlakazeka kwemvelo. I-ITU-T-653 Zero Dispender Shed I-Fibre eguquliwe ayisekeli ukuhanjiswa kwe-DWDM, kuyilapho i-G.655 I-FELO ENESISHTSHER ESHREDER DIFEDED ine-CD ephansi, kepha ilungiselelwe amabanga amade futhi iyabiza kakhulu.
Ekugcineni, opharetha kumele baqonde izinhlobo zama-fiber optics kumanethiwekhi abo. Uma iningi lemiculi ye-optical lisezingeni elijwayelekile G.652, kepha ezinye zingezinye izinhlobo zemicu, khona-ke uma ama-CD kuzo zonke izixhumanisi angeke abonakale, ikhwalithi yesevisi izothinteka.
Ekuphetheni
Ukuhlakazeka kweChromatic kuhlala kuyinselelo okumele kube yinselelo okumele kubhekwane nakho ukuqinisekisa ukuthembeka nokusebenza kahle kwezinhlelo zokuxhumana ezinejubane eliphezulu. Izici zefiber nokuhlolwa kubalulekile ekuxazululeni ubunzima bokuhlakazeka, ukuhlinzeka ngokuqonda kochwepheshe nonjiniyela ukuklama, ukuhambisa, nokugcina ingqalasizinda ephethe ukuxhumana okubucayi komphakathi. Ngokuthuthuka okuqhubekayo kanye nokwanda kwenethiwekhi, okusothayo kuzoqhubeka nokusungula nokuvula izixazululo emakethe, kuholele indlela yokusekela ukwamukelwa kobuchwepheshe obuthuthukile.
Isikhathi sePosi: Mar-20-2025