Taw qhia:
laser cwjmem, teeb tsom, laser tshuab luam ntawv thiab lwm cov khoom lag luam laser yog qhov tseem ceeb rau qhov muaj nyob ntawm
laser diode, laser diode yog nws ua haujlwm li cas?
Dab tsi yog qhov sib txawv nrog photodiode zoo tib yam?
Lo lus nug txuas ntxiv yog。
Laser diode txoj ntsiab cai - hais txog lasers
Thawj qhov kom paub txog laser diodes yog kom nkag siab txog lub zog hloov hluav taws xob. Muaj peb hom kev sib luag ntawm qhov hluav taws xob,
: Hauv lub zog siab tso tawm sai sai rau lub zog hluav taws xob qis kev hloov pauv lub xeev, hu ua cov hluav taws xob tsis sib xws;
: Nws yog nyob rau hauv lub zog loj hluav taws xob nyob rau hauv kev zam ntawm lub teeb sab nraud mus rau lub zog hluav taws xob qis hauv lub xeev txoj kev hloov, hu ua kev sib hloov hluav taws xob;
Ⅲ: nws yog nyob rau hauv lub xeev ntawm cov khoom nqus nqus txawv teb chaws mus rau lub xeev pauv siab dua yog hu ua kev nqus ntawm lub zog.
Cov hluav taws xob tsis sib xws, txawm hais tias ob qho tib lub sijhawm los ntawm lub xeev lub zog siab rau lub zog hluav taws xob tsawg lub xeev kev hloov pauv ntawm particle, theem, lub xeev polarization, lawv tso tawm cov teeb tsa hluav taws xob kev taw qhia kuj yuav muaj qhov sib txawv, tab sis hluav taws xob tiv thaiv sib txawv, thaum sab sauv lub xeev ntawm cov khoom nyob rau hauv kev zam ntawm sab nraud photon mus rau lub zog hluav taws xob tsawg hloov lub xeev, muab nyob rau hauv cov nqe lus ntawm zaus, theem, polarization xeev thiab txawv teb chaws tib yam photons ntawm lub teeb.
Hauv qhov laser, hluav taws xob uas tshwm sim yog lub zog hloov hluav taws xob, thiab lub laser emitted yog qhov zoo ib yam hauv zaus, theem, polarization xeev, thiab lwm yam.
Hauv txhua qhov kev tsim kho qhov muag, muaj cov hluav taws xob tiv thaiv thiab kev nqus tawm. Tsuas yog tias lub teeb hluav taws xob loj zuj zus tuaj, lub teeb nrig sab nraud tuaj yeem ua kom nrov thiab lub laser tawm. Thiab yog nyob rau hauv dav dav illuminant stimulated nqus ntug, tsuas yog cov particle sib npaug ntawm cov kab tawg, lub zog hluav taws xob muaj pes tsawg tus yog ntau dua li lub zog qis hauv lub xeev ntawm cov particle naj npawb (nws hu ua ion inversion), tuaj yeem siv laser.
Laser diode txoj cai - qauv
Lub cev qauv ntawm laser diode yog nyob rau hauv lub teeb emitting diode hlws ris tso ib txheej ntawm lub teeb nruab nrab ntawm cov kev ua ntawm semiconductor thiab nws qhov kawg tom qab polishing muaj qee qhov cuam tshuam muaj nuj nqi, yog li tsim qhov hluav taws xob resonator.
Thaum muaj kev cuam tshuam zoo, LED DE facto radiates lub teeb rau thiab cuam tshuam nrog kev kho qhov muag, yog li ntxiv kev txhawb zog ib yoj sib ntawm lub teeb uas tawm los ntawm qhov kev sib tshuam ntawm lub cev uas cuam tshuam nrog cov khoom ntawm hom teeb no.