Iilaser zefayibha kwicandelo lonxibelelwano lwefayibha ye-optical
II-Fiber Laseribhekisa kwilaser esebenzisa iifayibha zeglasi ezinqabileyo ezifakwe umhlaba njengesixhobo sokufumana i-gain medium. Iilaser zefayibha zinokuphuhliswa ngokusekelwe kwi-fiber amplifiers, kwaye umgaqo wazo osebenzayo ngulo: thabatha ilaser yefayibha ephonswe ngobude njengomzekelo. Icandelo lefayibha elifakwe ii-ion zesinyithi ezinqabileyo zomhlaba libekwa phakathi kwezibuko ezibini ezine-reflectivity ekhethiweyo. Ukukhanya kwepompo kudibana nefayibha ukusuka kwisibuko sasekhohlo. Isibuko sasekhohlo sidlulisela lonke ukukhanya kwepompo kwaye sibonakalise i-laser ngokupheleleyo, ukuze sisebenzise ngokufanelekileyo ukukhanya kwepompo kwaye sithintele ukukhanya kwepompo ekubeni kukhanye kwaye kubangele ukukhanya okuphumayo okungazinzi. I-endoscope yasekunene ivumela inxalenye yelaser ukuba idlule ukuze yenze impendulo ye-laser beam kwaye ifumane i-laser output. Ii-photons kwi-wavelength yepompo zifunxwa yi-medium, zenze i-ion number inversion, kwaye ekugqibeleni zivelise i-stimulated emission kwi-doped fiber medium ukuya kwi-output laser.
Iimpawu ze-fiber lasers: Ukusebenza kakuhle kokudibanisa kuba i-laser medium ngokwayo yindlela yokulawula amaza. Ukusebenza kakuhle kokuguqula, umda ophantsi kunye nesiphumo esihle sokusasaza ubushushu; Inoluhlu olubanzi lokulungelelanisa, ukusasazeka okuhle kunye nozinzo. Ii-fiber lasers zinokuqondwa njenge-converter esebenzayo ye-wavelength, oko kukuthi, ukuguqula ubude bokukhanya kwepompo ibe yi-lasing wavelength yee-ions zomhlaba ezinqabileyo ezifakwe i-doped. Le wavelength ekhawulezayo yi-output light wavelength ye-fiber laser. Ayilawulwa yi-pump wavelength kwaye imiselwa kuphela zizinto ze-rare earth doping kwisixhobo. Ke ngoko, ii-semiconductor lasers ze-wavelengths ezimfutshane ezahlukeneyo kunye namandla aphezulu ahambelana ne-absorption spectra yee-ions zomhlaba ezinqabileyo zingasetyenziswa njengemithombo yepompo ukufumana iziphumo ze-laser ze-wavelengths ezahlukeneyo.
Ulwahlulo lwe-laser yefayibha: Kukho iintlobo ezininzi zee-laser zefayibha. Ngokwe-gain medium, zingahlulwahlulwa ngolu hlobo: ii-laser zefayibha ezingaqhelekanga, ii-laser zefayibha ezingezizo ezi-linear, ii-laser zefayibha zekristale enye, kunye nee-laser zefayibha zeplastiki. Ngokwesakhiwo sefayibha, zingahlulwahlulwa zibe: ii-laser zefayibha ezifakwe i-single-clad kunye nee-laser zefayibha ezifakwe i-double-clad. Ngokwezinto ezifakwe i-doped, zingahlulwahlulwa zibe ziintlobo ezingaphezu kweshumi ezifana ne-erbium, i-neodymium, i-praseodymium, njl. Ngokwendlela yokupompa, ingahlulwahlulwa ngolu hlobo: ukupompa ubuso be-fiber end, ukupompa kwe-micro prism side optical coupling, ukupompa kwendandatho, njl. Ngokwesakhiwo se-resonant cavity, zingahlulwahlulwa ngolu hlobo: ii-laser zefayibha ze-FP cavity, ii-laser zefayibha ze-annular cavity, ii-laser ze-cavity ezibunjwe "zii-8″, njl. Ngokwendlela yokusebenza, zingahlulwahlulwa ngolu hlobo: i-pulsed optical fiber kunye ne-continuous laser, njl. Uphuhliso lwee-laser zefayibha luyanda. Okwangoku, ezahlukeneyoiileser ezinamandla aphezulu, iileyiza zepulse ezimfutshane kakhulukunyeiileser ezinokulungiswa ezinobubanzi obumxinwaziyavela enye emva kwenye. Okulandelayo, ii-fiber lasers ziya kuqhubeka nokukhula kwicala lamandla aphezulu okukhupha, umgangatho ongcono wemitha, kunye neencopho eziphezulu ze-pulse.
Ixesha leposi: Meyi-09-2025