Incamake y'iterambere rya laser ya semiconductor ifite imbaraga nyinshi igice cya mbere

Incamake y'imbaraga nyinshilaser ya semiconductorigice cya mbere cy'iterambere

Uko imikorere n'imbaraga bikomeje gutera imbere, diode za laser (umushoferi wa diode za laser) izakomeza gusimbura ikoranabuhanga risanzwe, bityo igahindura uburyo ibintu bikorwamo kandi igatuma ibintu bishya bitera imbere. Gusobanukirwa iterambere rikomeye muri laser za semiconductor zifite imbaraga nyinshi nabyo ni bike. Ihinduka rya electron muri laser binyuze muri semiconductor ryagaragaye bwa mbere mu 1962, kandi hakurikiyeho iterambere ryinshi ryuzuzanya ryatumye habaho iterambere rikomeye mu ihinduka rya electron muri laser zitanga umusaruro mwinshi. Iri terambere ryashyigikiye ikoreshwa ryingenzi kuva mu bubiko bw'amatara kugeza ku miyoboro y'amatara kugeza ku nganda zitandukanye.

Isuzuma ry’izi ntambwe zatewe n’iterambere ryazo ryerekana ko hashobora kubaho ingaruka zikomeye kandi zikwirakwira mu nzego nyinshi z’ubukungu. Mu by’ukuri, hamwe no kunoza imiyoboro ya lasers ifite imbaraga nyinshi, ubushobozi bwayo bwo kuyikoresha buzihutisha kwaguka, kandi buzagira ingaruka zikomeye ku iterambere ry’ubukungu.

Ishusho ya 1: Kugereranya urumuri n'itegeko rya Moore ry'ibyuma bipima imbaraga nyinshi bya semiconductor lasers

lasers zo mu bwoko bwa solid-state zikoreshwa na diode nalaser za fibre

Iterambere mu mirasire ya semiconductor ifite imbaraga nyinshi ryanatumye habaho iterambere ry’ikoranabuhanga rya laser rikurikira, aho imirasire ya semiconductor ikoreshwa mu gukurura (kuvoma) kristu za doped (diode-pumped solid-state lasers) cyangwa imirasire ya doped (fiber lasers).

Nubwo laser za semiconductor zitanga ingufu za laser nziza, nto kandi zihendutse, zifite n'imbogamizi ebyiri z'ingenzi: ntizibika ingufu kandi urumuri rwazo ni ruke. Muri make, porogaramu nyinshi zisaba laser ebyiri z'ingirakamaro; Imwe ikoreshwa mu guhindura amashanyarazi mo laser, indi ikoreshwa mu kongera urumuri rw'iyo excretion.

Lasers za solid-state zikoreshwa na diode.
Mu mpera z'imyaka ya 1980, ikoreshwa rya laser za semiconductor mu gupompa laser za solid-state ryatangiye kunguka cyane mu bucuruzi. Laser za solid-state za Diode-pumped (DPSSL) zigabanya cyane ingano n'ubukana bwa sisitemu zo gucunga ubushyuhe (cyane cyane cycle coolers) na gain modules, zakoreshejwe mu mateka amatara ya arc mu gupompa kristu za laser za solid-state.

Uburebure bw'ubushyuhe bwa laser ya semiconductor butoranywa hashingiwe ku buryo imiterere ya spectral absorption ihurirana n'uburyo bwo gukura bwa laser ya solid-state, ibi bikaba bishobora kugabanya cyane umutwaro w'ubushyuhe ugereranije n'uburyo itara rya arc risohora ubushyuhe bwinshi. Ukurikije ukuntu laser za neodymium-doped zitanga uburebure bwa 1064nm zikunzwe cyane, laser ya semiconductor ya 808nm yabaye umusaruro mwiza cyane mu gukora laser ya semiconductor mu myaka irenga 20.

Iterambere ry’imikorere yo gupompa diode mu gisekuru cya kabiri ryashobotse kubera ubwiyongere bw’urumuri rwa laser za semiconductor za multi-mode hamwe n’ubushobozi bwo gushimangira ubugari bw’imirongo y’ibyuka bifunganye hakoreshejwe Bragg gratings nyinshi (VBGS) hagati mu myaka ya 2000. Imiterere y’ingufu nke kandi ntoya ya spectral ya hafi 880nm yakuruye ubushake bukomeye bwa spectrally stable high brightness pump diodes. Izi laser zifite imikorere myiza ituma bishoboka ko pompa neodymium ku rwego rwo hejuru rwa laser rwa 4F3/2, bigabanya ubusembwa bwa quantum bityo bikongera uburyo bwo gukuramo ibanze ku mbaraga zisanzwe, ibyo bikaba byagabanywa n’amabara y’ubushyuhe.

Mu ntangiriro z'ikinyejana cya kabiri cy'iki kinyejana, twabonye ukwiyongera gukomeye kw'ingufu muri laser za 1064nm zikoresha uburyo bumwe, ndetse na laser zikoresha frequency conversion zikora mu bunini bw'urumuri bugaragara n'ubushyuhe bwa ultraviolet. Bitewe n'igihe kirekire cyo hejuru cy'ingufu za Nd: YAG na Nd: YVO4, izi operations za DPSSL Q-switched zitanga ingufu nyinshi zo mu bwonko n'ingufu zo mu rwego rwo hejuru, bigatuma ziba nziza cyane mu gutunganya ibikoresho no gukoresha micromachines neza cyane.