Incamake yimbaraga nyinshi semiconductor laser yiterambere igice cya mbere

Incamake yimbaraga nyinshisemiconductor laseriterambere igice cya mbere

Nkuko imikorere nimbaraga zikomeza gutera imbere, diode ya laser (umushoferi wa laser) izakomeza gusimbuza tekinoroji gakondo, bityo ihindure uburyo ibintu bikorwa kandi itume iterambere ryibintu bishya. Gusobanukirwa iterambere ryibonekeje mumashanyarazi menshi ya semiconductor laseri nayo ni ntarengwa. Guhindura electroni kuri lazeri binyuze muri semiconductor yerekanwe bwa mbere mu 1962, kandi iterambere ryinshi ryuzuzanya ryakurikiyeho ryateye intambwe nini muguhindura electroni kuri lazeri itanga umusaruro mwinshi. Iterambere ryashyigikiye porogaramu zingenzi kuva mububiko bwa optique kugeza kumurongo wa optique kugera kumurongo mugari winganda.

Isubiramo ryiterambere ryiterambere hamwe niterambere ryabo ryerekana ko hashobora kubaho ingaruka zikomeye kandi zikwirakwira mubice byinshi byubukungu. Mubyukuri, hamwe nogukomeza kunoza ingufu za semiconductor zifite ingufu nyinshi, umurima wacyo uzihutisha kwaguka, kandi bizagira ingaruka zikomeye ku kuzamuka kwubukungu.

Igishushanyo 1: Kugereranya luminance n amategeko ya Moore yimbaraga za semiconductor lazeri

Diode-pompe ikomeye-ya laseri nalaseri

Iterambere ryimbaraga za semiconductor zifite ingufu nyinshi nazo zatumye habaho iterambere ryikoranabuhanga rya lazeri yo hepfo, aho lazeri ya semiconductor ikoreshwa muburyo bwo gushimisha (pompe) kode ya kristu (diode-pomped ikomeye-lazeri) cyangwa fibre fibre (fibre lazeri).

Nubwo lazeri ya semiconductor itanga ingufu za lazeri ikora neza, ntoya, kandi ihendutse, ifite kandi imbogamizi ebyiri zingenzi: ntabwo zibika ingufu kandi umucyo wazo ni muto. Mubisanzwe, porogaramu nyinshi zisaba laseri ebyiri zingirakamaro; Imwe ikoreshwa muguhindura amashanyarazi mumyuka ya laser, indi ikoreshwa mukuzamura umucyo wibyo byuka.

Diode-pompe ikomeye-ya lazeri.
Mu mpera z'imyaka ya za 1980, ikoreshwa rya lazeri ya semiconductor mu kuvoma lazeri zikomeye-zatangiye kubona inyungu zubucuruzi. Diode-pompe ikomeye-ya lazeri (DPSSL) igabanya cyane ubunini nuburemere bwa sisitemu yo gucunga amashyuza (cyane cyane icyuma gikonjesha) kandi ikunguka modules, amateka yagiye akoresha amatara ya arc kugirango avomye kristu ya reta ikomeye.

Uburebure bwumurambararo wa semiconductor lazeri bwatoranijwe hashingiwe ku guhuzagurika kuranga ibintu byinjira hamwe no kunguka uburyo bwa lazeri ikomeye, ishobora kugabanya cyane imitwaro yumuriro ugereranije numuyoboro mugari wohereza itara rya arc. Urebye icyamamare cya neodymium-dope laseri isohora uburebure bwa 1064nm, lazeri ya 808nm ya semiconductor ya lazeri yabaye ibicuruzwa bitanga umusaruro mwinshi mumashanyarazi ya semiconductor mumyaka irenga 20.

Kunoza pompe ya diode yo mu gisekuru cya kabiri byashobokaga bitewe no kwiyongera kwinshi kwamashanyarazi menshi ya semiconductor hamwe nubushobozi bwo guhagarika imyuka ihumanya ikirere ikoresheje ibyinshi bya Bragg (VBGS) hagati ya 2000. Intege nke kandi zifunganye zo kwinjiza ibintu hafi ya 880nm zashishikaje cyane muburyo bwiza butangaje bwo kumurika pompe diode. Izi lazeri zikora cyane zituma bishoboka kuvoma neodymium mu buryo butaziguye ku rwego rwo hejuru rwa laser yo hejuru ya 4F3 / 2, bikagabanya defisite ya kwantani bityo bigatuma uburyo bwo gukuramo uburyo bwibanze ku mbaraga zisanzwe, ibyo bikaba bitagabanywa nubushyuhe bwumuriro.

Mu ntangiriro yimyaka icumi ya kabiri yiki kinyejana, twiboneye ubwiyongere bukomeye bwimbaraga muburyo bumwe bwo guhinduranya 1064nm, hamwe na lazeri zabo zihinduranya zikoresha mumiraba igaragara kandi ya ultraviolet. Urebye imbaraga ndende zo hejuru za Nd: YAG na Nd: YVO4, ibyo bikorwa bya DPSSL Q byahinduwe bitanga ingufu za pulse nini nimbaraga zo hejuru, bigatuma biba byiza muburyo bwo gutunganya ibintu neza hamwe na micromachining ikoreshwa neza.