Uhlolojikelele lwamandla aphezuluI-semiconductor laserukuthuthukiswa ingxenye yokuqala
Njengoba ukusebenza kahle namandla kuqhubeka nokuba ngcono, ama-laser diodes(umshayeli we-laser diodes) izoqhubeka nokuthatha indawo yobuchwepheshe bendabuko, ngaleyo ndlela iguqule indlela izinto ezenziwa ngayo futhi ivumele ukuthuthukiswa kwezinto ezintsha.Ukuqonda ukuthuthuka okubalulekile kuma-laser we-semiconductor enamandla kakhulu nakho kunqunyelwe.Ukuguqulwa kwama-electron abe ama-laser kusetshenziswa ama-semiconductors kwaboniswa okokuqala ngo-1962, futhi kuye kwalandela intuthuko ebanzi ehambisanayo eqhube intuthuko enkulu ekuguquleni ama-electron abe amalaser akhiqiza kakhulu.Lokhu kuthuthuka kusekele izinhlelo zokusebenza ezibalulekile kusuka kusitoreji se-optical kuya kunethiwekhi ye-optical kuya kumkhakha obanzi wezimboni.
Ukubuyekezwa kwalokhu kuthuthuka kanye nenqubekelaphambili yazo eqongelelekayo kugqamisa amandla okuba nomthelela omkhulu nakakhulu futhi osabalele ezindaweni eziningi zomnotho.Eqinisweni, ngokuthuthuka okuqhubekayo kwama-laser we-semiconductor enamandla amakhulu, inkambu yokusetshenziswa kwayo izosheshisa ukunwetshwa, futhi izoba nomthelela omkhulu ekukhuleni komnotho.
Umfanekiso 1: Ukuqhathaniswa kokukhanya kanye nomthetho kaMoore wamalaser anamandla amakhulu we-semiconductor
Ama-laser wesimo esiqinile enziwe nge-diode kanyei-fiber lasers
Ukuthuthuka kumalaser we-semiconductor enamandla amakhulu nakho kuholele ekuthuthukisweni kobuchwepheshe be-laser obusezingeni eliphansi, lapho amalaser we-semiconductor ngokuvamile asetshenziselwa ukujabulisa (ukumpompa) amakristalu ane-doped (ama-diode-pumped solid-state lasers) noma ama-doped fibers (ama-fiber lasers).
Nakuba ama-laser we-semiconductor enikeza amandla e-laser asebenzayo, amancane, futhi angabizi kakhulu, futhi anemikhawulo emibili ebalulekile: awawagcini amandla futhi ukukhanya kwawo kulinganiselwe.Ngokuyisisekelo, izicelo eziningi zidinga ama-lasers amabili awusizo;Enye isetshenziselwa ukuguqula ugesi ube yi-laser emission, kanti enye isetshenziselwa ukuthuthukisa ukugqama kwalokho kukhishwa.
Ama-laser wesimo esiqinile aphunywe yi-diode.
Ngasekupheleni kweminyaka yawo-1980, ukusetshenziswa kwama-laser we-semiconductor ukumpompa ama-laser wesifunda esiqinile kwaqala ukuthola isithakazelo esibalulekile sokuhweba.Amalaser e-Diode-pumped solid-state (DPSSL) anciphisa ngokumangazayo usayizi nobunkimbinkimbi bezinhlelo zokuphatha ezishisayo (ikakhulukazi ama-coolers ajikelezayo) futhi azuze amamojula, lawo ngokomlando abesebenzisa amalambu e-arc ukumpompa amakristalu e-laser yesimo esiqinile.
Ubude be-wavenge be-laser ye-semiconductor bukhethwa ngokusekelwe ekugqagqeni kwezici zokumunca okubukekayo ne-rein medium ye-laser yesimo esiqinile, enganciphisa kakhulu umthwalo oshisayo uma kuqhathaniswa nobubanzi bokukhishwa kwe-wideband yesibani se-arc.Uma kucatshangelwa ukuduma kwama-laser ane-neodymium-doped akhipha i-wavelength engu-1064nm, i-808nm semiconductor laser isibe umkhiqizo okhiqiza kakhulu ekukhiqizweni kwe-semiconductor laser iminyaka engaphezu kwengama-20.
Ukusebenza okuthuthukisiwe kokumpompa kwe-diode kwesizukulwane sesibili kwenziwe kwaba nokwenzeka ngokugqama okwandisiwe kwama-laser we-semiconductor wemodi eminingi kanye nekhono lokuzinzisa ububanzi obuncane bokuphuma komugqa kusetshenziswa inqwaba ye-Bragg gratings (VBGS) maphakathi nawo-2000s.Izici zokumunca ezintekenteke neziwumngcingo ze-spectral ezingaba ngu-880nm zivuse isithakazelo esikhulu kuma-diode amaphampu okukhanya okuphezulu okuzinzile.Lawa ma-lasers asebenza kahle enza kube nokwenzeka ukumpompa i-neodymium ngqo ezingeni eliphezulu le-laser elingu-4F3/2, kuncishiswe ukushoda kwe-quantum futhi ngaleyo ndlela kuthuthukiswe ukukhishwa kwemodi eyisisekelo kumandla amaphakathi aphezulu, obekungakhawulwa amalensi ashisayo.
Ngasekuqaleni kweshumi lesibili leminyaka yaleli khulu leminyaka, besibona ukwanda okukhulu kwamandla kumalaser emodi eyodwa aguquguqukayo angu-1064nm, kanye namalaser awo okuguqula imvamisa asebenza kumaza abonakalayo namaza e-ultraviolet.Uma kubhekwa isikhathi eside sempilo yamandla aphezulu e-Nd: YAG kanye ne-Nd: YVO4, le misebenzi eshintshwayo ye-DPSSL Q ihlinzeka ngamandla okushaya ngamandla kanye namandla aphezulu, okuyenza ilungele ukucutshungulwa kokusebenza kwe-ablative kanye nezinhlelo zokusebenza ze-micromachining ezinembayo eziphezulu.
Isikhathi sokuthumela: Nov-06-2023