Unxibelelwano olungenazingcingo olubonakalayo (i-OWC) luhlobo lonxibelelwano olubonakalayo apho imiqondiso idluliselwa khona kusetyenziswa ukukhanya okubonakalayo okungaqondiswanga, okubonakalayo okungaphakathi (i-infrared) (IR), okanye ukukhanya kwe-ultraviolet (UV).
Iinkqubo ze-OWC ezisebenza kwiiwavelengths ezibonakalayo (390 — 750 nm) zihlala zibizwa ngokuba lunxibelelwano lokukhanya olubonakalayo (VLC). Iinkqubo ze-VLC zisebenzisa ii-diode ezikhupha ukukhanya (ii-LED) kwaye zinokubetha ngesantya esiphezulu kakhulu ngaphandle kwemiphumo ebonakalayo ekukhanyeni nakwiliso lomntu. I-VLC ingasetyenziswa kwiindidi ezahlukeneyo zezicelo kubandakanya i-LAN engenazingcingo, i-LAN yomntu engenazingcingo kunye nenethiwekhi yezithuthi. Kwelinye icala, iinkqubo ze-OWC ezisekwe emhlabeni, ezaziwa ngokuba ziinkqubo ze-free space optics (FSO), zisebenza kwiifrequencies ezikufutshane ne-infrared (750 — 1600 nm). Ezi nkqubo zihlala zisebenzisa i-laser emitters kwaye zibonelela ngamakhonkco acacileyo eprotocol anexabiso eliphantsi kunye namazinga aphezulu edatha (okt 10 Gbit/s ngobude bobude) kwaye zibonelela ngesisombululo esinokubakho kwiingxaki zokubuyela umva. Umdla kunxibelelwano lwe-ultraviolet (UVC) nawo ukhula ngenxa yokuqhubela phambili kwamva nje kwimithombo yokukhanya ye-solid-state/detectors ezisebenza kwi-UV spectrum engaboniyo ilanga (200 — 280 nm). Kule nto kuthiwa yi-deep ultraviolet band, imitha yelanga ayinamsebenzi xa isemhlabeni, nto leyo eyenza kube nokwenzeka ukuyila isixhobo sokubala i-photon esine-wide-field receiver esongeza amandla afunyenweyo ngaphandle kokongeza ingxolo engaphezulu.
Kangangamashumi eminyaka, umdla kunxibelelwano olungenazingcingo olubonakalayo ubuncitshiswe ikakhulu kwizicelo zomkhosi ezifihlakeleyo kunye nezicelo zasesibhakabhakeni kuquka ii-intersatellite kunye nee-deep space links. Ukuza kuthi ga ngoku, ukungena kwemarike enkulu ye-OWC bekuncitshisiwe, kodwa i-IrDA sisisombululo sothumelo olungenazingcingo olufutshane oluphumelele kakhulu.
Ukususela kunxibelelwano lwe-optical kwiisekethe ezidityanisiweyo ukuya kwiikhonkco zokwakha zangaphandle ukuya kunxibelelwano lwesathelayithi, iintlobo ezahlukeneyo zonxibelelwano olungenazingcingo lwe-optical zingasetyenziswa kwiintlobo ngeentlobo zezicelo zonxibelelwano.
Unxibelelwano olungenazingcingo olubonakalayo lunokwahlulwa lube ziindidi ezintlanu ngokoluhlu lothumelo:
1. Imigama emifutshane kakhulu
Unxibelelwano phakathi kweetshiphusi kwiiphakheji zeetshiphusi ezininzi ezipakishwe kakuhle nezixineneyo.
2. Imigama emifutshane
Kwi-IEEE 802.15.7 eqhelekileyo, unxibelelwano olungaphantsi kwamanzi lusetyenziswa phantsi kwe-wireless Body Local Area Network (WBAN) kunye ne-wireless Personal Local Area Network (WPAN).
3. Uluhlu oluphakathi
Unxibelelwano lwe-IR yangaphakathi kunye nokukhanya okubonakalayo (VLC) kwiinethiwekhi zengingqi ezingenazingcingo (ii-WLan) kunye nonxibelelwano oluphakathi kwesithuthi nesithuthi kunye nonxibelelwano oluphakathi kwezithuthi nezakhiwo.
Inyathelo lesi-4: Ukude
Unxibelelwano lwezakhiwo, olukwaziwa ngokuba lunxibelelwano lwe-optical lwesithuba sasimahla (i-FSO).
5. Umgama owongezelelweyo
Unxibelelwano lwelaser esibhakabhakeni, ingakumbi kwiikhonkco phakathi kweesathelayithi kunye nokusekwa kweenkwenkwezi zesathelayithi.
Ixesha lokuthumela: Juni-01-2023