Ntawm cov txheej txheem ntawm laser ua ntej, xub piav qhia emulated emission. Muaj peb hom ntawm hluav taws xob nyob rau hauv lub kho qhov muag tawg,
Yog tauj mus rau tsawg-zog lub xeev hais nyob rau hauv ib tug siab zog lub xeev zaus, hu ua txawj emission;
Yog tus thib ob hauv lub xeev siab-zog ntawm cov lus hauv lub teeb ci sab nraud thaum zoo siab los ntawm kev hloov hluav taws xob tsawg, hu ua stimulated emission;
Peb yog nyob rau hauv ib tug tsis muaj zog State hais nqus teeb zog rau sab nraum siab zog tsa haum txoj kev hloov hu.
Cov hluav taws xob tsis sib xws, txawm tias yog ob lub sijhawm los ntawm aa lub zog hluav taws xob Lub Xeev mus rau lub zog hluav taws xob tsawg lub xeev dhia tsiv ntawm cov lus hais, lawv muab lub teeb ntawm theem, thiab lub xeev polarization, thiab cov kev taw qhia tseem yuav sib txawv, tab sis los ntawm kev ntxhov siab hluav taws xob ntawm qhov sib txawv, dang nyob hauv high-zog lub xeev hais nyob rau hauv txawv teb chaws photon ntawm tshwm sim Xia yuav tsis tshua muaj zog State dhia tsiv, muab nyob rau hauv zaus, thiab theem, thiab polarization State, sib nrauj thiab txawv teb chaws photon kiag tib ntawm lub teeb. Nyob rau hauv lub laser, yog tsa emission ntawm hluav taws xob, nws emits lub laser zaus, theem, polarization, thiab thiaj li nyob yog raws nraim tib yam. Ib qho ntawm lub teeb tsa zoo siab
Sketch daim ntawv qhia txog laser diode
Daim duab qhia kev ntawm laser diode
Tias tau tsa emission, thiab tsa haum, tsuas yog ib tug kom zoo dua tsa emission yuav muab lwm kho qhov muag laser. Ordinary lub teeb yog stimulated absorption ntug tsuas yog particle equilibrium tawg thiab ua rau lub zog particle naj npawb yog ntau dua lub zog qis hauv lub xeev muaj pes tsawg tus hais (xws li ion inversion), ua lub laser.