Isishwankathelo samandla aphezulusemiconductor laseruphuhliso inxalenye yokuqala
Njengoko ukusebenza kakuhle kunye namandla kuqhubeka kuphucuka, i-laser diodes (umqhubi we-laser diodes) iya kuqhubeka ithatha indawo yetekhnoloji yemveli, ngaloo ndlela itshintsha indlela izinto ezenziwe ngayo kwaye ivumela uphuhliso lwezinto ezintsha. Ukuqonda uphuculo olubalulekileyo kwii-laser ze-semiconductor zamandla aphezulu nako kulinganiselwe. Ukuguqulwa kwee-elekhtroni zibe zii-laser kusetyenziswa i-semiconductors kwaqala kwaboniswa ngo-1962, kwaye iintlobo ngeentlobo zenkqubela phambili ezongezelelweyo ziye zalandela eziqhube inkqubela phambili enkulu ekuguqulelweni kwee-electron zibe yi-laser enemveliso ephezulu. Ezi nkqubela zixhase izicelo ezibalulekileyo ukusuka kwisitoreji se-optical ukuya kwinethiwekhi ye-optical ukuya kwiinkalo ezininzi zezoshishino.
Uphononongo lwale nkqubela phambili kunye nenkqubela phambili eyongezelekayo iqaqambisa amandla okuba nempembelelo enkulu nangaphezulu kwiindawo ezininzi zoqoqosho. Enyanisweni, ngokuphuculwa okuqhubekayo kwee-laser ze-semiconductor zamandla aphezulu, indawo yayo yesicelo iya kukhawulezisa ukwanda, kwaye iya kuba nefuthe elibi kakhulu ekukhuleni koqoqosho.
Umzobo 1: Ukuthelekiswa kokukhanya kunye nomthetho kaMoore wamandla aphezulu e-semiconductor lasers
I-Diode-pumped solid-state lasers kunyei-fiber lasers
Ukuqhubela phambili kwi-laser ye-semiconductor yamandla aphezulu kukwakhokelele kuphuhliso lwetekhnoloji ye-laser esezantsi, apho ii-laser ze-semiconductor ziqhele ukusetyenziselwa ukuchulumancisa (ukumpompa) iikristale ze-doped (i-diode-pumped solid-state lasers) okanye iifayibha ezine-doped (fiber lasers).
Nangona iilaser ze-semiconductor zibonelela ngamandla asebenzayo, amancinci, kunye nexabiso eliphantsi lelaser, nazo zinemida emibini ebalulekileyo: azigcini amandla kwaye ukukhanya kwazo kulinganiselwe. Ngokusisiseko, izicelo ezininzi zifuna iilaser ezimbini eziluncedo; Enye isetyenziselwa ukuguqula umbane ube yilaser emission, kwaye enye isetyenziselwa ukukhulisa ukuqaqamba kwaloo mveliso.
I-Diode-pumped solid-state lasers.
Ekupheleni kweminyaka yoo-1980, ukusetyenziswa kwee-lases ze-semiconductor ukumpompa ii-laser zombuso oqinileyo kwaqala ukufumana umdla obalulekileyo worhwebo. I-Diode-pumped solid-state lasers (i-DPSSL) inciphisa ngokumangalisayo ubungakanani kunye nobunzima beenkqubo zolawulo lwe-thermal (ikakhulukazi umjikelezo we-coolers) kunye nokuzuza iimodyuli, ezithi ngokwembali zisebenzise izibane ze-arc ukumpompa iikristali ze-laser eziqinileyo.
Ubude bobude be-laser semiconductor bukhethwe ngokusekwe ekudibaneni kweempawu zokufunxa okubonwayo kunye nendawo yokufumana i-laser eqinile yelizwe, enokunciphisa kakhulu umthwalo oshushu xa kuthelekiswa ne-wideband emission spectrum yesibane se-arc. Ukuthathela ingqalelo ukuthandwa kwee-lases ze-neodymium-doped ezikhupha i-1064nm wavelength, i-808nm semiconductor laser iye yaba yeyona mveliso inemveliso kwimveliso ye-laser ye-semiconductor ngaphezulu kweminyaka engama-20.
Ukuphuculwa kokusebenza kokumpompa kwe-diode kwisizukulwana sesibini kwenziwa ngokuqaqamba okwandisiweyo kwe-laser ye-semiconductor ye-multi-mode kunye nokukwazi ukuzinzisa i-linewidths yokukhutshwa kwe-linewidths usebenzisa i-bulk Bragg gratings (VBGS) phakathi kwe-2000s. Iimpawu zokufunxa ezibuthathaka kunye ezimxinwa ze-spectral ezijikeleze i-880nm zivuselele umdla omkhulu kwi-spectrally ezinzileyo kwi-diode yempompo yokukhanya okuphezulu. Ezi lasers ziphezulu zokusebenza zenza kube lula ukumpompa i-neodymium ngokuthe ngqo kwinqanaba eliphezulu lelaser ye-4F3/2, inciphisa intsilelo ye-quantum kwaye ngaloo ndlela iphucula ukutsalwa kwemowudi esisiseko kumandla omndilili ophakamileyo, ebenokuthi ngenye indlela ibekelwe umda ziilensi ezishushu.
Ekuqaleni kweshumi lesibini lenkulungwane yale nkulungwane, besibona ukonyuka kwamandla okubalulekileyo kwimowudi enye ye-1064nm lasers, kunye nee-laser zabo zokuguqula rhoqo ezisebenza kumaza abonakalayo kunye ne-ultraviolet. Ukunikezelwa kwamandla obomi obude obude be-Nd: YAG kunye ne-Nd: YVO4, le misebenzi ye-DPSSL Q-etshintshiweyo inika amandla aphezulu e-pulse kunye namandla aphezulu, okwenza ukuba ibe yinto efanelekileyo yokucubungula izinto eziphathekayo kunye nezicelo ze-micromachining ezichanekileyo.
Ixesha lokuposa: Nov-06-2023