Niaj hnub no, daim ntawv thov ntawm high-power semiconductor lasers npog yuav luag tag nrho cov high-tech teb nrog rau cov tub rog aerospace, industrial ntau lawm, kev kho mob thiab kev noj qab haus huv, nrog rau cov ntaub ntawv cia, optical fiber kev sib txuas lus, laser fuze, holographic technology, scanning printing, kev lom zem kev ua tau zoo, thiab lwm yam. .Qhov laj thawj yog vim nws muaj ntau yam zoo, xws li tus nqi qis, kev sib koom ua ke muaj zog, kev siv hluav taws xob tsawg thiab kev ua haujlwm siab. 808nm high-power semiconductor laser yog ib hom semiconductor laser uas tau pib ua ntej thiab kawm tob dua. Ib qho ntawm nws cov ntawv thov tseem ceeb tshaj plaws yog ua lub twj tso kua mis rau cov khoom siv lub xeev lasers. Tam sim no nws tau pib hloov cov tsoos teeb twj tso kua mis qhov chaw. Lub ntsiab yog vim li cas los yog vim hais tias ntawm lub siab conversion efficiency uas tsoos teeb twj tso kua mis ua tsis tau. 905nm high-power semiconductor lasers tsis muaj teeb meem rau tib neeg lub qhov muag, yog li lawv tau siv dav hauv laser qhov muag kho, infrared pom kev hmo ntuj, kev muaj tiag thiab lwm yam. Cov semiconductor lasers tsim nyob rau hauv daim ntawv no tag nrho txais yuav ib tug loj kab noj hniav qauv, uas yuav tsis tsuas yog txhim kho qhov kev puas tsuaj ntawm cov kab noj hniav ntog, tab sis kuj suppress high-order hom lasing. Lub quantum zoo ntawm 808nm semiconductor laser txais InAlGaAs thiab GaAsP raws, thiab kev siv cov txhuas tsis pub dawb GaAsP quantum zoo yog qhov zoo los txhim kho kev ntseeg tau ntawm lub cuab yeej. Lub 905nm laser txais yuav ib cheeb tsam uas muaj ntau qhov kev ua haujlwm hauv qhov chaw, uas tuaj yeem txhim kho qhov kev ua haujlwm ntawm lub quantum sab hauv ntawm lub laser. Daim ntawv no tsuas yog kawm 808nm thiab 905nm high-power semiconductor lasers los ntawm cov hauv qab no: Ua ntej, keeb kwm kev loj hlob, kev tshawb fawb thiab kev siv ntawm semiconductor lasers tau qhia. Qhov thib ob, txoj cai ua haujlwm thiab kev ceev faj ntawm cov khoom siv kev loj hlob ntawm epitaxial wafer thiab cov cuab yeej kuaj tau nthuav tawm. Hauv chav kuaj no, EMCORE D125 hlau-organic compound vapor deposition (MOCVD) system ntawm Vecco tuam txhab hauv Tebchaws Meskas yog siv rau kev loj hlob ntawm epitaxial wafer. Cov khoom siv xeem yog PLM-100 optical fluorescence spectrum test system ntawm Philips tuam txhab thiab electrochemical CV qauv ntawm Accent PN44{{40}}0. (ECV) test system. Tom qab ntawd, cov txheej txheem tsim qauv ntawm cov txheej txheem strained quantum zoo semiconductor laser tau qhia, suav nrog kev suav cov bandgap ntawm cov strained quantum zoo, kev suav ntawm kev txiav txim band, kev sib raug zoo ntawm lasing wavelength thiab quantum zoo cov ntaub ntawv muaj pes tsawg leeg thiab dav dav. , thiab lwm yam. Lub simulation siv Kohn-Luttinger Hamiltonian raws li hloov matrix. Raws li cov kev xav saum toj no, simulations tau ua nyob rau thaj tsam nquag ntawm 808nm thiab 9{50}}5nm semiconductor lasers los txiav txim seb cov khoom muaj pes tsawg leeg thiab qhov dav dav ntawm lub qhov dej quantum. 808nm semiconductor laser quantum qhov dej siv 10nm In0.14Al0.11Ga0.75As thiab 12nm feem. Lub GaAs0.84P0.16, 905nm semiconductor laser quantum zoo txais 7nm In0.1Ga0.9As, thiab thaj chaw nquag siv ob chav quantum zoo qauv. Lub barrier txheej thiab waveguide txheej ntawm 808nm thiab 905nm semiconductor lasers yog Al0.3Ga0.7As, thiab txheej confinement yog Al0.5Ga0.5As. Rau lub hauv paus no, MOCVD epitaxial kev loj hlob yog nqa tawm nyob rau hauv lub active cheeb tsam qauv, thiab cov qauv thiab epitaxial tej yam kev mob yog optimized raws li PL xeem tau, thiab thaum kawg lub optimized active cheeb tsam qauv yog tau. Thaum kawg, nyob rau hauv lub hauv paus ntawm quantum zoo active cheeb tsam tom qab epitaxy optimization, los ntawm kev nce lub thickness ntawm lub waveguide txheej, confinement txheej, cap txheej, thiab lwm yam., thiab ua kom tsim nyog doping, tus qauv yog epitaxially zus los ntawm MOCVD epitaxy system, thiab ces. Tus qauv yog raug rau photolithography. , corrosion, deposition, sputtering, cleavage, txheej, sintering, siab vuam, ntim thiab lwm yam txheej txheem tom qab, lub tiav lawm laser tuag yog npaj. Qhov zoo thiab qhov tsis zoo ntawm kev ua haujlwm
