WISOPTIC Lub Tswv Yim ntawm Laser Technology: Laser Dynamics

WISOPTIC Lub Tswv Yim ntawm Laser Technology: Laser Dynamics

Laser dynamics hais txog kev hloov pauv ntawm qee qhov ntau ntawm lasers dhau sijhawm, xws li lub zog kho qhov muag thiab nce.

Tus cwj pwm dynamic ntawm lub laser yog txiav txim los ntawm kev sib cuam tshuam ntawm qhov chaw kho qhov muag hauv kab noj hniav thiab qhov nruab nrab nce. Feem ntau hais lus, lub zog laser yuav sib txawv nrog qhov sib txawv ntawm qhov nce thiab qhov resonant kab noj hniav, thiab qhov kev hloov pauv ntawm qhov nce yog txiav txim siab los ntawm cov txheej txheem ntawm stimuled emission thiab spontaneous emission (nws kuj yuav txiav txim los ntawm cov nyhuv quenching thiab cov kev hloov pauv hluav taws xob).

Qee qhov kev kwv yees tshwj xeeb yog siv. Piv txwv li, lub laser nce tsis siab dhau. Nyob rau hauv ib lub teeb nruam laser, kev sib raug zoo ntawm lub zog laser P thiab nce coefficient g nyob rau hauv kab noj hniav txaus siab cov nram qab no coupling sib txawv sib npaug:

WISOPTIC Tips of Laser Technology

Qhov twg TR yog lub sijhawm xav tau rau ib ncig ncig hauv kab noj hniav, l yog kab noj hniav poob, gss yog lub teeb liab me me nce (ntawm lub twj tso kua mis siv), τg yog lub sijhawm so kom txaus (feem ntau nyob ze rau lub zog lub xeev lub neej), thiab Esat yog tnws saturated nqus zog ntawm qhov nce nruab nrab.

Nyob rau hauv tas li yoj lasers, qhov kev txhawj xeeb tshaj plaws yog qhov hloov ntawm tus cwj pwm ntawm lub laser (feem ntau suav nrog kev tsim cov zis hluav taws xob) thiab lub xeev ua haujlwm thaum muaj kev cuam tshuam hauv kev ua haujlwm (feem ntau yog kev so oscillation). Hauv cov kev hwm no, ntau hom lasers muaj tus cwj pwm txawv heev.

Piv txwv li, doped insulator lasers yog nquag rau spikes thiab so oscillations, tab sis laser diodes tsis yog. Hauv Q-hloov laser, tus cwj pwm dynamic tseem ceeb heev, qhov twg lub zog khaws cia hauv qhov nruab nrab qhov nce yuav hloov tau zoo heev thaum lub mem tes tawm. Q-hloov fiber ntau lasers feem ntau muaj qhov nce siab heev, thiab muaj qee qhov dynamic phenomena. Nws feem ntau ua rau cov mem tes muaj qee qhov substructures hauv lub sijhawm sau, uas tuaj yeem ua tau tsis tau piav los ntawm kab zauv saum toj no.

Ib qho kev sib npaug zoo sib xws kuj tuaj yeem siv rau kev ua haujlwm tsis zoo-xauv lasers; ces thawj qhov sib npaug yuav tsum tau ntxiv ib lub sij hawm ntxiv los piav txog qhov poob ntawm lub saturable absorber. Qhov tshwm sim ntawm cov nyhuv no yog tias lub attenuation ntawm so oscillation yog txo. Cov txheej txheem so oscillation tsis txawm attenuate, yog li cov tshuaj nyob rau hauv lub xeev yuav tsis ruaj khov, thiab lub laser muajqee tsis ruaj khov ntawm Q-hloov hom-xauv lossis lwm hom Q-hloovhauv.


Post lub sij hawm: Aug-10-2021