Ukukhanya esikuqhelileyo ngokuqinisekileyo kukukhanya esinokukubona ngeliso lenyama.Amehlo ethu anovelwano kakhulu kukukhanya okumfusa kunye ne-wavelength ye-400nm ukuya kwisibane esibomvu kwi-700nm.Kodwa kwiintsinga ze-optical ezithwala iifiber zeglasi, sisebenzisa ukukhanya kwingingqi ye-infrared.Ezi zibane zinamaza amade, umonakalo omncinci kwimicu ye-optical, kwaye azibonakali ngeso lenyama.Eli nqaku liza kukunika inkcazo ecacileyo yobude be-fiber optical kwaye kutheni kufuneka ukhethe la maza.
Inkcazo yobude bamaza
Enyanisweni, ukukhanya kuchazwa bubude bako.Ubude beWaveleng linani elimele i-spectrum yokukhanya.Ubuninzi bokukhanya, okanye umbala, unobude obunxulunyaniswa nako.Ubude bamaza kunye nobuninzi bamaza zinxulumene.Ngokuqhelekileyo, imitha yemitha emifutshane ichongwa ngobude bayo, ngelixa i-long-wave radiation ichongwa ngokuphindaphindiweyo kwayo.
I-wavelengths eqhelekileyo kwi-fiber optical
Ubude obuqhelekileyo buhlala bungama-800 ukuya kwi-1600nm, kodwa ukuza kuthi ga ngoku, awona maza aqhele ukusetyenziswa kwimicu ye-optical yi-850nm, 1300nm kunye ne-1550nm.I-Multimode fiber ifanelekile kwi-wavelengths ye-850nm kunye ne-1300nm, ngelixa i-fiber ye-mode eyodwa isetyenziswe kakuhle kwi-wavelengths ye-1310nm kunye ne-1550nm.Umahluko phakathi kobude be-1300nm kunye ne-1310nm usegama lesintu kuphela.I-Lasers kunye ne-light-emitting diode nazo zisetyenziselwa ukusabalalisa ukukhanya kwimicu ye-optical.I-Lasers zinde kunezixhobo zemowudi enye ezinobude be-1310nm okanye i-1550nm, ngelixa ii-diode ezikhupha ukukhanya zisetyenziselwa izixhobo ze-multimode ezine-wavelengths ye-850nm okanye i-1300nm.
Kutheni ukhetha la maza obude?
Njengoko kukhankanyiwe ngaphambili, awona maza asetyenziswa ngokuqhelekileyo kwimicu ye-optical yi-850nm, 1300nm kunye ne-1550nm.Kodwa kutheni sikhetha ezi zintathu zamaza okukhanya?Kungenxa yokuba izibonakaliso ze-optical zala maza mathathu anelahleko encinci xa zihanjiswa kwi-fiber optical.Ngoko ke zifaneleke kakhulu njengemithombo yokukhanya ekhoyo yokuhanjiswa kwiifibers optical.Ukulahlekelwa kwefiber yeglasi ngokuyinhloko kuvela kwimiba emibini: ukulahlekelwa kwe-absorption kunye ilahleko echithachithayo.Ukulahleka kokufunxa kwenzeka ikakhulu kumaza amaza athile esiwabiza ngokuba “ziibhanti zamanzi”, ikakhulu ngenxa yokufunxwa kwamaconsi okulandelela amanzi kwizinto zeglasi.Ukusasazwa ikakhulu kubangelwa kukuphinda kuphindaphindeke iiathomu kunye neemolekyuli zeglasi.Ukusasazwa kwamaza amade kuncinci kakhulu, lo ngowona msebenzi uphambili we-wavelength.
Ukuququmbela
Emva kokufunda eli nqaku, unokuba nokuqonda okusisiseko kwamaza amaza asetyenziswa kwiifiber optical.Ngenxa yokuba ilahleko yobude be-850nm, i-1300nm kunye ne-1550nm iphantsi ngokwentelekiso, lolona khetho lulungileyo lonxibelelwano lwefiber optical.
Ixesha lokuposa: Jan-20-2021 
