Ama-laser e-fiber emkhakheni wokuxhumana kwe-optical fiber

Ama-laser e-fiber emkhakheni wokuxhumana kwe-optical fiber

II-Fiber Laseribhekisela ku-laser esebenzisa imicu yengilazi engavamile efakwe umhlaba njenge-gain medium. Ama-laser e-fibre angathuthukiswa ngokusekelwe kuma-fibre amplifiers, futhi isimiso sawo esisebenzayo yilesi: thatha i-laser ye-fibre efakwe i-longitudinal njengesibonelo. Ingxenye ye-fibre efakwe ama-ion ensimbi engavamile yomhlaba ibekwa phakathi kwezibuko ezimbili ezinokukhanya okukhethiwe. Ukukhanya kwephampu kuhlangana ne-fibre kusuka esibukweni sesobunxele. Isibuko sesobunxele sidlulisela konke ukukhanya kwephampu futhi sibonise i-laser ngokuphelele, ukuze sisebenzise kahle ukukhanya kwephampu futhi sivimbele ukukhanya kwephampu ukuthi kungabonakali futhi kubangele ukukhanya okuphumayo okungazinzile. I-endoscope yesokudla ivumela ingxenye ye-laser ukuthi idlule ukuze yakhe impendulo yomsebe we-laser futhi ithole ukuphuma kwe-laser. Ama-photon ku-wavelength yephampu amuncwa yi-medium, akha ukuguqulwa kwenombolo ye-ion, futhi ekugcineni akhiqize ukukhishwa okuvuselelwe ku-medium ye-fibre efakwe i-doped kuya ku-laser yokukhipha.

Izici zama-fiber lasers: Ukusebenza kahle kokuxhumanisa okuphezulu ngoba i-laser medium ngokwayo iyi-waveguide medium. Ukusebenza kahle kokuguqulwa okuphezulu, umkhawulo ophansi kanye nomphumela omuhle wokushabalalisa ukushisa; Inebanga elibanzi lokuxhumanisa, ukuhlakazeka okuhle kanye nokuqina. Ama-fiber lasers angaqondwa futhi njenge-converter esebenza kahle yamaza, okungukuthi, ukuguqula ubude bokukhanya kwephampu kube ubude bokukhanya obunciphile bama-ion e-rare earth afakwe i-doped. Lo bude bokukhanya obunciphile buyi-wavelength yokukhanya okuphumayo kwe-fiber laser. Ayilawulwa ubude bokukhanya kwephampu futhi inqunywa kuphela yizinto ezinciphile zamaza e-rare earth ezitholakalayo. Ngakho-ke, ama-semiconductor lasers amaza amafushane ahlukene kanye namandla aphezulu ahambisana ne-absorption spectra yama-ion e-rare earth angasetshenziswa njengemithombo yephampu ukuthola imiphumela ye-laser yamaza ahlukene.

Ukuhlukaniswa kwe-fiber laser: Kunezinhlobo eziningi zama-fiber laser. Ngokwe-gain medium, zingahlukaniswa kanje: ama-fiber laser aqoshwe umhlaba ongavamile, ama-fiber laser angenayo i-linear effect, ama-fiber laser angama-crystal fiber, kanye nama-fiber laser epulasitiki. Ngokwesakhiwo se-fiber, zingahlukaniswa kanje: ama-fiber laser aqoshwe ngodwa kanye nama-fiber laser aqoshwe kabili. Ngokwezinto eziqoshwe ngododwa, zingahlukaniswa ngalezi zinhlobo ezingaphezu kweshumi njenge-erbium, i-neodymium, i-praseodymium, njll. Ngokwendlela yokupompa, ingahlukaniswa kanje: ukupompa kobuso be-fiber end, ukupompa kwe-micro prism side optical coupling, ukupompa kwendandatho, njll. Ngokwesakhiwo se-resonant cavity, zingahlukaniswa kanje: ama-FP cavity fiber lasers, ama-annular cavity fiber lasers, ama-cavity lasers anesimo esingu-“8″, njll. Ngokwendlela yokusebenza, zingahlukaniswa kanje: i-pulsed optical fiber kanye ne-continuous laser, njll. Ukuthuthukiswa kwama-fiber lasers kuyashesha. Njengamanje, ahlukahlukeneama-laser anamandla amakhulu, ama-laser e-pulse amafushane kakhulu, futhiama-laser alungisekayo anobubanzi obuncane bomugqaziyavela ngokulandelana. Okulandelayo, ama-fiber laser azoqhubeka nokuthuthuka ngezindlela zamandla aphezulu okukhipha, ikhwalithi engcono yokukhanya, kanye nama-pulse peaks aphezulu.