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Fiber optics, komanso spelled fiber optics, thesayansizakutumizadeta, mawu, ndi zithunzi mwa kudutsa kwa kuwala kudzera mu ulusi woonda, wowonekera.Mumatelefoni, ukadaulo wa fiber optic walowa m'malomkuwawaya mumtunda wautali fonimizere, ndipo imagwiritsidwa ntchito kulumikizamakompyutamkatimaukonde amderali.CHIKWANGWANIopticsndiwonso maziko a ma fiberscopes omwe amagwiritsidwa ntchito pofufuza ziwalo zamkati za thupi (endoscopy) kapena kuyang'ana mkati mwa zinthu zopangidwa mwadongosolo.

Sing'anga yayikulu ya fiber optics ndi ulusi wowonda tsitsi womwe nthawi zina umapangidwapulasitikikoma nthawi zambirigalasi.Chingwe chagalasi chowoneka bwino chimakhala ndi mainchesi 125 (μm), kapena 0.125 mm (0.005 inchi).Izi kwenikweni ndi m'mimba mwake wa cladding, kapena wosanjikiza wakunja.Pakatikati, kapena silinda yopatsira mkati, imatha kukhala ndi mainchesi ochepa mpaka 10μm.Kupyolera mu ndondomeko yotchedwakusinkhasinkha kwathunthu kwamkati,kuwalacheza chowala mu fiber cankufalitsamkati mwa mtunda wautali ndi kuchepetsedwa pang'ono modabwitsa, kapena kuchepetsa mphamvu.Mlingo wa kuchepetsedwa kwa mtunda umasiyanasiyana malinga ndi kutalika kwa kuwala ndi kutalika kwakekupangawa fiber.

Pamene ulusi wagalasi wamapangidwe apakati / zotchingira zidayambitsidwa koyambirira kwa zaka za m'ma 1950, kupezeka kwa zonyansa kudapangitsa kuti ntchito yawo ikhale yautali wokwanira kuti azitha kugwiritsa ntchito ma endoscopy.Mu 1966, akatswiri opanga magetsiCharles Kaondi George Hockham, omwe amagwira ntchito ku England, adanena kuti azigwiritsa ntchito ulusitelecommunication, ndipo mkati mwa zaka makumi aŵirisilikaulusi galasi anali kupangidwa ndi chiyero chokwanira kutiinfuraredikuwala kunkatha kuyenda mtunda wa makilomita 100 kapena kuposerapo popanda kuthandizidwa ndi obwerezabwereza.Mu 2009 Kao adalandira mphotho yaMphotho ya Nobelmu Physics chifukwa cha ntchito yake.Ulusi wa pulasitiki, womwe nthawi zambiri umapangidwa ndi polymethylmethacrylate,polystyrene, kapenapolycarbonate, ndi yotsika mtengo kupanga komanso yosinthika kuposa ulusi wagalasi, koma kuchepetsedwa kwake kwa kuwala kumalepheretsa kugwiritsa ntchito maulalo amfupi kwambiri mkati mwa nyumba kapenamagalimoto.

Optical telecommunication nthawi zambiri imachitidwa ndiinfuraredikuwala m'mafunde apakati pa 0.8–0.9 μm kapena 1.3–1.6 μm—mafunde omwe amapangidwa bwino ndima diode opepukakapenasemiconductor lasersndipo zomwe sizimatsika pang'ono mu ulusi wagalasi.Kuwunika kwa Fiberscope mu endoscopy kapena mafakitale kumachitika mu mawonekedwe owoneka bwino, mtolo umodzi wa ulusi womwe umagwiritsidwa ntchitoaunikiremalo owunikiridwa ndi kuwala ndi mtolo wina womwe umagwira ntchito ngati wautalimandalapotumiza chithunzicho kudiso la munthukapena kanema kamera.