Isifinyezo samandla aphezului-laser ye-semiconductoringxenye yokuqala yentuthuko
Njengoba ukusebenza kahle namandla kuqhubeka nokuthuthuka, ama-laser diode (umshayeli we-laser diodes) izoqhubeka nokufaka esikhundleni sobuchwepheshe bendabuko, ngaleyo ndlela ishintshe indlela izinto ezenziwa ngayo futhi ivumele ukuthuthukiswa kwezinto ezintsha. Ukuqonda intuthuko ebalulekile kuma-laser e-semiconductor anamandla amakhulu nakho kunqunyelwe. Ukuguqulwa kwama-electron abe ama-laser ngama-semiconductor kwaqala ukuboniswa ngo-1962, futhi kuye kwalandela izinhlobonhlobo zentuthuko ehambisanayo eziqhube intuthuko enkulu ekuguqulweni kwama-electron abe ama-laser akhiqiza kakhulu. Lezi ntuthuko zisekele izinhlelo zokusebenza ezibalulekile kusukela ekugcinweni kwe-optical kuya ekuxhumaneni kwe-optical kuya ezinkambeni eziningi zezimboni.
Ukubuyekezwa kwalezi ntuthuko kanye nentuthuko yazo eqongelelekayo kugqamisa amathuba okuba nomthelela omkhulu nosakazeke kakhulu ezindaweni eziningi zomnotho. Eqinisweni, ngokuthuthukiswa okuqhubekayo kwama-laser e-semiconductor anamandla aphezulu, insimu yayo yokusetshenziswa izosheshisa ukwanda, futhi izoba nomthelela omkhulu ekukhuleni komnotho.
Umfanekiso 1: Ukuqhathaniswa kokukhanya kanye nomthetho kaMoore wama-laser e-semiconductor anamandla aphezulu
Ama-laser aqinile aqhutshwa yi-diode kanyeama-laser efayibha
Intuthuko kuma-laser e-semiconductor anamandla amakhulu nayo iholele ekuthuthukisweni kobuchwepheshe be-laser engezansi, lapho ama-laser e-semiconductor ngokuvamile esetshenziselwa ukuvusa (ukupompa) amakristalu afakwe i-doped (ama-laser e-solid-state afakwe i-diode) noma ama-fiber afakwe i-doped (ama-fiber laser).
Nakuba ama-laser e-semiconductor enikeza amandla e-laser asebenzayo, amancane, futhi ashibhile, anemikhawulo emibili ebalulekile: awagcini amandla futhi ukukhanya kwawo kulinganiselwe. Ngokuyisisekelo, izinhlelo zokusebenza eziningi zidinga ama-laser amabili awusizo; Elinye lisetshenziselwa ukuguqula ugesi ube yi-laser emission, kanti elinye lisetshenziselwa ukuthuthukisa ukukhanya kwalowo mkhiqizo.
Ama-laser e-solid-state adonswa yi-diode.
Ngasekupheleni kweminyaka yama-1980, ukusetshenziswa kwama-laser e-semiconductor ukupompa ama-laser e-solid-state kwaqala ukuthola isithakazelo esikhulu kwezentengiselwano. Ama-laser e-solid-state adonswe yi-diode (DPSSL) anciphisa kakhulu usayizi kanye nobunzima bezinhlelo zokuphatha ukushisa (ngokuyinhloko ama-cooler ajikelezayo) kanye nama-gain modules, abesebenzisa izibani ze-arc ngokomlando ukupompa amakristalu e-laser e-solid-state.
Ubude be-laser ye-semiconductor bukhethwa ngokusekelwe ekuhlanganiseni kwezici zokumuncwa kwe-spectral ne-gain medium ye-laser ye-solid-state, okunganciphisa kakhulu umthwalo wokushisa uma kuqhathaniswa ne-wideband emission spectrum yesibani se-arc. Uma kucatshangelwa ukuthandwa kwama-laser afakwe i-neodymium akhipha ubude be-wavelength obungu-1064nm, i-laser ye-semiconductor engu-808nm ibe umkhiqizo okhiqiza kakhulu ekukhiqizweni kwe-laser ye-semiconductor iminyaka engaphezu kwengu-20.
Ukusebenza kahle kokupompa kwe-diode kwesizukulwane sesibili kwenziwe kwaba nokwenzeka ngokukhanya okwandisiwe kwama-laser e-semiconductor e-multi-mode kanye nekhono lokuzinzisa ububanzi bemigqa yokukhipha emincane kusetshenziswa ama-Bragg gratings amaningi (VBGS) maphakathi nawo-2000. Izici ezibuthakathaka nezincane zokumunca kwe-spectral ezingaba ngu-880nm zivuse isithakazelo esikhulu kuma-diode e-pump aqinile okukhanya okuphezulu. Lawa ma-laser asebenza kahle kakhulu enza kube nokwenzeka ukupompa i-neodymium ngqo ezingeni eliphezulu le-laser le-4F3/2, kunciphisa ukuntuleka kwe-quantum futhi ngaleyo ndlela kuthuthukiswe ukukhishwa kwemodi eyisisekelo ngamandla aphezulu aphakathi, obekunganqunyelwa ngamalensi okushisa.
Ekuqaleni kweshumi leminyaka lesibili lalelikhulu leminyaka, sasibona ukwanda okukhulu kwamandla kuma-laser angu-1064nm emodi eyodwa eguquguqukayo, kanye nama-laser awo okuguqulwa kwemvamisa asebenza kuma-wavelengths abonakalayo nangama-ultraviolet. Njengoba kunikezwe isikhathi eside samandla aphezulu se-Nd: YAG kanye ne-Nd: YVO4, le misebenzi ye-DPSSL Q-switched inikeza amandla aphezulu okushaya kanye namandla aphezulu, okwenza kube kuhle kakhulu ekucutshungulweni kwezinto ezisetshenziswayo kanye nezinhlelo zokusebenza ze-micromachining ezinembile kakhulu.
Isikhathi sokuthunyelwe: Novemba-06-2023