Txheej txheem cej luam ntawm lub zog siabsemiconductor laserkev loj hlob thib ob
Fiber laser npav.
Fiber lasers muab ib tug nqi-zoo txoj kev los hloov lub brightness ntawm high-power semiconductor lasers. Txawm hais tias wavelength multiplexing optics tuaj yeem hloov cov teeb ci semiconductor lasers rau hauv qhov ci dua, qhov no los ntawm tus nqi nce spectral dav thiab photomechanical complexity. Fiber lasers tau ua pov thawj tias muaj txiaj ntsig tshwj xeeb hauv kev hloov dua siab tshiab.
Ob chav-clad fibers tau qhia nyob rau hauv 1990s, siv ib hom-hom tub ntxhais nyob ib puag ncig los ntawm multimode cladding, muaj peev xwm ua kom paub ntau dua-lub zog, qis-nqi multimode semiconductor twj tso kua mis lasers rau hauv fiber ntau, tsim kom muaj kev lag luam ntau dua los hloov siab zog semiconductor lasers. mus rau hauv qhov chaw ci ntsa iab. Rau ytterbium-doped (Yb) fibers, lub twj tso kua mis excites ib tug dav absorption band nyob rau hauv 915nm, los yog ib tug nqaim nqus band ze 976nm. Raws li lub twj tso kua mis wavelength mus txog lub lasing wavelength ntawm fiber ntau laser, lub thiaj li hu ua quantum deficit yog txo, maximizing efficiency thiab txo cov nqi hluav taws xob uas yuav tsum tau dissipated.
Fiber lasersthiab diode-pumped solid-state lasers ob qho tib si cia siab rau qhov nce hauv qhov ci ntawm qhovlaser diode. Feem ntau, raws li qhov ci ntsa iab ntawm diode lasers txuas ntxiv txhim kho, lub zog ntawm cov lasers lawv lub twj tso kua mis kuj nce ntxiv. Kev txhim kho ci ntsa iab ntawm semiconductor lasers nyhav los txhawb kev hloov dua siab tshiab brightness.
Raws li peb cia siab tias, spatial thiab spectral brightness yuav tsim nyog rau yav tom ntej systems uas yuav pab kom tsawg quantum deficit siv rau nqaim absorption nta nyob rau hauv solid-state lasers, raws li zoo raws li ntom wavelength reuse schemes rau ncaj qha semiconductor laser daim ntaub ntawv.
Daim duab 2: Ua kom ci ntsa iab ntawm lub zog siabsemiconductor laserstso cai rau cov ntawv thov kom nthuav dav
Kev ua lag luam thiab kev thov
Kev nce qib hauv high-power semiconductor lasers tau ua rau ntau yam kev siv tseem ceeb. Txij li thaum tus nqi ib brightness watt ntawm high-power semiconductor lasers tau raug txo exponentially, cov lasers ob qho tib si hloov qub technologies thiab pab kom paub cov khoom tshiab.
Nrog tus nqi thiab kev ua tau zoo txhim kho ntau dua 10-fold txhua xyoo caum, lub zog hluav taws xob semiconductor lasers tau cuam tshuam kev lag luam hauv txoj kev npaj txhij txog. Txawm hais tias nws nyuaj rau kwv yees cov ntawv thov yav tom ntej nrog qhov tseeb, nws kuj yog kev qhia kom rov qab mus rau peb lub xyoo dhau los los xav txog qhov muaj peev xwm ntawm kaum xyoo tom ntej (saib daim duab 2).
Thaum Hall qhia semiconductor lasers ntau dua 50 xyoo dhau los, nws tau pib lub kiv puag ncig thev naus laus zis. Zoo li Moore Txoj Cai, tsis muaj leej twg tuaj yeem kwv yees qhov ua tau zoo ntawm lub zog hluav taws xob semiconductor lasers uas ua raws nrog ntau yam kev hloov kho tshiab.
Lub neej yav tom ntej ntawm semiconductor lasers
Tsis muaj cov kev cai lij choj ntawm physics uas tswj hwm cov kev txhim kho no, tab sis txuas ntxiv kev txhim kho thev naus laus zis zoo li yuav txhawb nqa qhov kev nthuav dav no hauv kev zoo nkauj. Semiconductor lasers yuav txuas ntxiv hloov cov thev naus laus zis niaj hnub thiab yuav hloov pauv txoj hauv kev tsim khoom ntxiv. Qhov tseem ceeb tshaj rau kev loj hlob ntawm kev lag luam, lub zog hluav taws xob semiconductor lasers kuj tseem yuav hloov dab tsi tuaj yeem ua tau.
Post lub sij hawm: Nov-07-2023