Technology Development Ntawm Semiconductor Lasers

Semiconductor Lasersfeem ntau hu ua laser diodes. Lawv hu ua semiconductor lasers vim lawv siv cov khoom siv semiconductor ua cov khoom ua haujlwm. Semiconductor lasers yog tsim los ntawm fiber ntau-coupled semiconductor laser modules, beam combining li, laser zog kis tau tus mob optical cables, hwj chim systems, tswj systems thiab mechanical lug. Laser tso zis yog ua tiav nyob rau hauv kev tsav tsheb thiab kev saib xyuas ntawm lub hwj chim mov system thiab tswj qhov system.

1. Taw qhia rau semiconductor lasers
Semiconductor lasers feem ntau hu ua laser diodes. Lawv hu ua semiconductor lasers vim lawv siv cov khoom siv semiconductor ua cov khoom ua haujlwm. Semiconductor lasers yog tsim los ntawm fiber ntau-coupled semiconductor laser modules, beam combining li, laser zog kis tau tus mob optical cables, hwj chim systems, tswj systems thiab mechanical lug. Laser tso zis yog ua tiav nyob rau hauv kev tsav tsheb thiab kev saib xyuas ntawm lub hwj chim mov system thiab tswj qhov system. Feem ntau siv cov ntaub ntawv ua haujlwm rau semiconductor lasers suav nrog gallium arsenide (GaAs), cadmium sulfide (CdS), indium phosphide (InP), zinc sulfide (ZnS), thiab lwm yam. hom thiab high-zog electron beam excitation.

(1). Kev txhaj tshuaj hluav taws xob yog semiconductor laser
Feem ntau, cov ntaub ntawv ua haujlwm xws li GaAS, CdS, InP, thiab ZnS yog siv los ua cov ntaub ntawv tseem ceeb los ua cov khoom siv hluav taws xob semiconductor. Thaum tau txais kev txhaj tshuaj hluav taws xob, cov khoom siv ua haujlwm zoo siab nrog rau pem hauv ntej bias txhaj tam sim no, yog li ntawd ntawm thaj tsam ntawm lub dav hlau tsim tawm emissions.

(2). Poob laser
Feem ntau, cov germanium ib leeg siv lead ua (P-hom semiconductor ib leeg siv lead ua) nrog qhov ua cov nqa khoom lossis cov germanium ib leeg siv lead ua nrog cov khoom siv hluav taws xob (N-hom semiconductor ib leeg siv lead ua) doped nrog impurities impurities hauv cov khoom siv ua haujlwm. , thiab siv lasers tawm los ntawm lwm cov lasers ua twj tso kua mis excitations mus cuag cov pejxeem inversion.

(3). Siab zog electron beam zoo siab semiconductor laser
Feem ntau, kev xaiv cov ntaub ntawv ua haujlwm zoo ib yam li cov twj lasers, thiab cov khoom siv semiconductor germanium ib leeg siv lead ua kuj tseem siv. Txawm li cas los xij, nws tsim nyog sau cia tias hauv kev xaiv P-hom semiconductor ib leeg muaju, lub zog hluav taws xob hluav taws xob hluav taws xob siab excitation semiconductor lasers feem ntau siv PbS. Feem ntau CbS thiab ZnO.

Muaj ntau ntau hom semiconductor lasers, thiab muaj ntau txoj kev faib raws li lawv cov nti tsis thiab cov txheej txheem ntim. Ntawm lawv, cov txheej txheem kev faib tawm tseem ceeb ntawm fiber ntau tso tawm semiconductor lasers yog raws li hauv qab no:

2. Kev loj hlob ntawm semiconductor laser technology
Txij li thaum tsim lub ntiaj teb thawj semiconductor laser hauv xyoo 1962, semiconductor lasers tau hloov pauv zoo heev thiab txhawb kev loj hlob ntawm lwm yam kev tshawb fawb thiab thev naus laus zis.

Nyob rau hauv xyoo tas los no, low-power semiconductor lasers siv nyob rau hauv cov ntaub ntawv technology tau tsim sai heev. Piv txwv li, DFB thiab dynamic single-mode laser diodes siv rau kev sib txuas lus fiber ntau, nrog rau pom lub teeb wavelength laser diodes dav siv hauv kev kho qhov muag disc, thiab txawm tias ultra-luv luv mem tes laser diodes tau ua kom muaj kev vam meej.

Tsawg-zog laser diodes lawv tus kheej kuj muaj cov yam ntxwv ntawm kev sib koom ua ke, kev kub ceev thiab tunability. Txoj kev loj hlob ntawm cov loj-scale high-power semiconductor lasers kuj yog ceev.

Nyob rau xyoo 1980s, cov zis hluav taws xob ntawm kev ywj pheej laser diodes yog siab dua 100mW thiab mus txog qhov kev hloov pauv ntawm 39%. Nyob rau xyoo 1990, cov neeg Amelikas ib zaug ntxiv qhov taw qhia rau qib tshiab, ncav cuag qhov kev hloov pauv ntawm 45%. Hais txog lub zog tso zis, nws kuj tau hloov ntawm W rau KW qib.

Tam sim no, nrog kev txhawb nqa ntawm kev tshawb fawb thiab kev tsim kho cov haujlwm hauv ntau lub teb chaws, laser thev naus laus zis xws li cov qauv nti, kev loj hlob ntawm epitaxial thiab cov khoom ntim ntawm semiconductor lasers tau ua tiav zoo, thiab kev ua haujlwm ntawm cov khoom siv hauv tsev kuj tau ua tiav qhov tseem ceeb: cov electro- optical conversion efficiency tau mus txog ntau tshaj 70%, uas yog tsawg heev. Lub beam divergence lub kaum sab xis, qhov nruam tso zis hluav taws xob ntawm ib qho bar tshaj li kilowatts, thiab kev siv cov pa roj carbon nano (CN) lub dab dej kub tuaj yeem ua kom txias txias ntawm lub laser los ntawm 30% piv nrog cov tsoos semiconductor bar installation tshuab. Lub zog tso zis ntawm ib lub raj uas muaj qhov dav ntawm 100μm mus txog 24.6W, thiab lub zog ua haujlwm siab ua haujlwm ntev ntev li kaum txhiab teev.

High-efficiency thiab high-power semiconductor lasers kuj tau tsim sai sai rau hauv cov lasers tag nrho, muab LDP solid-state lasers tshiab txoj kev loj hlob thiab kev cia siab.

3. Semiconductor laser lag luam loj
Semiconductor lasers muaj qhov zoo ntawm qhov me me, lub teeb yuag, lub neej ntev, kev ua haujlwm siab, kev siv hluav taws xob tsawg, kev ua haujlwm siab electro-optical conversion, yooj yim ntau lawm, thiab tus nqi qis. Lawv tau siv dav hauv CD laser record players, optical fiber sib txuas lus, optical nco, thiab lasers. Cov tshuab luam ntawv, thiab lwm yam tau siv dav, npog tag nrho cov teb ntawm optoelectronics.

Nrog rau kev txhim kho tas mus li thiab kev ua tiav ntawm cov thev naus laus zis, semiconductor lasers tab tom txhim kho nyob rau hauv cov kev taw qhia ntawm luv emission wavelength, siab dua emission zog, ultra-me me thiab lub neej ntev kom tau raws li cov kev xav tau ntawm ntau yam kev siv, thiab cov khoom hom tau nce ntau nplua nuj. Nws kuj tau siv dav hauv laser ua, 3D luam ntawv, laser radar, laser ntau yam, kev kho mob thiab kev tshawb fawb txog kev ua neej, thiab lwm yam. Tsis tas li ntawd, lub zog hluav taws xob ncaj qha semiconductor lasers tau siv dav hauv kev txiav thiab vuam teb los ntawm kev sib txuas rau hauv fiber ntau rau kev sib kis. .

Cov ntaub ntawv tiv tauj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.