Koj Puas Paub Txog Lub Hwj Chim Loj, Kev Ua Haujlwm Siab 808nm Semiconductor Lasers?

Lub zog siab808nm semiconductor laser tshuabthiab nws cov twj tso kua mis lub xeev laser (Nd:YAG) muaj dav daim ntawv thov kev cia siab nyob rau hauv advanced manufacturing, kho mob cosmetology, aerospace, laser zaub thiab lwm yam teb. Nyob rau hauv cov ntaub ntawv no, lub miniaturization thiab lub teeb yuag ntawm semiconductor lasers feem ntau yuav tsum tau, thiab kev txhim kho lub electro-optical conversion efficiency ntawm semiconductor lasers yog qhov zoo tshaj plaws technical txoj kev los txo lub zog noj, ntim thiab hnyav ntawm tag nrho cov laser system. High efficiency semiconductor laser kev tshawb fawb tam sim no yog kev tshawb fawb kub hauv tsev thiab txawv teb chaws. Xyoo 2016, Lub Tebchaws Yelemees tsis ntev los no tau tshaj tawm txoj haujlwm Crolaser kom ua tiav ib leeg-bar lub zog siab tshaj 1.6kW thiab electro-optical conversion efficiency ntau dua 80 feem pua ​​​​ntawm qhov kub tsis tshua muaj siab ntawm 200-220K. Nyob rau hauv 2015, Yamagata et al. qhia txog qhov tshiab 915 nm ADCH (asymmetric decoupled confinement heterostructure) qauv nrog optimized optical limiting factor. Xyoo 2014, Pietvzak et al. [6] qhia txog 915 nm semiconductor laser array nrog strip dav ntawm 90 µm, 5 luminous dots, 55 W tso zis zog, thiab ib tug siab tshaj plaws efficiency ntawm 69 feem pua.

Hauv 2013, Crump et al. Kev tshuaj xyuas cov xwm txheej txwv tsis pub hloov pauv ntawm electro-optic kev ua tau zoo ntawm semiconductor lasers, thiab tau npaj siab ua kom muaj huab cua ob npaug asymmetric waveguide qauv (EDAS), uas tau txheeb xyuas los ntawm kev sim. Hauv xyoo 2012, Lauer thiab al tau tshaj tawm tias qhov siab tshaj plaws electro-optic conversion efficiency ntawm ib leeg ntawm 976 nm ntawm chav tsev kub yog 76 feem pua. Xyoo 2010, Cao et al tau tshaj tawm tias qhov bar ntawm 808 nm 50 W tau ua tiav qhov kev hloov pauv ntawm electro-optic ntawm 67 feem pua ​​​​los ntawm optimizing lub waveguide thiab cladding qauv. Txawm li cas los xij, qhov ntsuas kub tau qis li 5◦C, thaum qhov ua tau zoo txo ​​qis rau 64 feem pua ​​​​ntawm chav tsev kub ntawm 25 ◦ C. Hauv 2007 Hulsewede li al. tau tshaj tawm tias 808 nm micro-channel txias semiconductor laser array, 1.5 hli kab noj hniav ntev, 20 feem pua ​​​​qhov ua tau zoo, thiab cov zis tawm tsis tu ncua ntawm 90 W. Qhov siab tshaj plaws electro-optic conversion efficiency ntawm 25 ◦C 65 feem pua. Nyob rau hauv tib lub xyoo, Peters et al. tau tshaj tawm tias qhov ua tau zoo tshaj plaws ntawm electro-optic conversion efficiency ntawm 100 W 976 nm micro-channel txias semiconductor laser array ntawm chav tsev kub yog 76 feem pua, uas yog qhov ua tau zoo tshaj plaws qhia ntawm chav tsev kub ntawm 976 nm semiconductor laser array. Crump et al. qhia txog cov yam ntxwv tso zis ntawm 810 nm semiconductor laser array ntawm qhov sib txawv ntawm qhov kub thiab txias, qhov siab tshaj plaws electro-optical conversion efficiency ntawm 62 feem pua ​​​​ntawm 23 ◦C, thiab cov cuab yeej tseem tuaj yeem ua haujlwm ntawm 70 ◦C. Xyoo 1999, Wang et al. qhia txog 808 nm ib leeg-tube semiconductor laser zus los ntawm MBE, uas ua tiav qhov kev poob qis heev ntawm 0.75 cm −1 thiab qhov ua tau zoo tshaj plaws ntawm 65.5 feem pua. Tuam Tshoj kuj tau ua qee qhov kev nce qib hauv kev ua haujlwm siab ntawm 808 nm.

Vim tias GAAS-raws li cov khoom siv semiconductor muaj qee lub teeb pom kev ntawm lub lasing wavelength ntawm 808 nm, cov khoom siv hluav taws xob hloov kho qhov muag ntawm 808 nm yog li 5 feem pua ​​-10 feem pua ​​qis dua li ntawm 976 nm, thiab kev ua haujlwm zoo ntawm 808 nm semiconductor laser arrays feem ntau yog 50 feem pua ​​-55 feem pua, thiab qib zoo tshaj plaws hauv chav kuaj yog li 65 feem pua. Hauv kev xaiv cov ntaub ntawv, cov ntaub ntawv uas muaj txhuas (AlGaAs) muaj cov hluav taws xob thiab thermal conductivity, yooj yim kom ua tau raws li qhov tsis muaj kev tiv thaiv thiab thermal tsis kam los ntawm kev tiv thaiv gradient thiab doping tswj, thiab AlGaAs-raws li cov khoom siv epitaxy txoj kev loj hlob yog paub tab thiab txhim khu kev qha. , yog li nws yog cov khoom siv zoo tshaj plaws kom ua tiav 808 nm siab electro-optic conversion efficiency. Raws li kev soj ntsuam ntawm cov yam ntxwv uas txwv qhov kev hloov pauv ntawm electro-optic kev ua tau zoo ntawm ib lub laser semiconductor, daim ntawv no tsim cov qauv asymmetric dav waveguide, optimizes cov qauv thiab doping ntawm P-hom waveguide txheej thiab cladding, thiab ua tiav tsis tshua muaj kev nqus dej hauv. kab noj hniav. Nyob rau tib lub sijhawm, ua ke nrog qhov tsis xws luag thiab tsis tshua muaj kev ntxhov siab cov cuab yeej npaj siv tshuab, qhov ua tau zoo ntawm 808 nm semiconductor laser array tau paub.

Qhov pom qhov pom qhov poob ntawm P-hom waveguide thiab cladding yog kawm los ntawm kev sib piv cov qauv symmetric thiab asymmetric wide waveguide. Tag nrho cov optical absorption poob ntawm P-type waveguide thiab cladding yog 1.77 cm−1, cov uas P-type waveguide poob yog 0.56 cm−1 thiab P-type cladding poob yog {{1{{ 15}}}}.81 cm−1, suav txog 77 feem pua ​​​​ntawm tag nrho cov poob. Los ntawm optimizing asymmetric wide waveguide qauv thiab optimizing lub thickness thiab muaj pes tsawg leeg ntawm P-hom waveguide txheej, qhov kho qhov muag absorption poob ntawm asymmetric waveguide qauv yog txo mus rau 0.63 cm-1 tom qab optimization, thiab P- hom waveguide txheej poob yog 0.15cm-1

P-hom cladding poob yog 0.05 cm−1, suav txog 32 feem pua ​​​​ntawm tag nrho cov poob. Lub optimized epitaxial qauv yog siv los ua kom muaj zog thiab ua haujlwm siab ntawm 808 nm semiconductor laser array. Ntawm chav tsev kub 25 ◦C, thaum qhov kev txhaj tshuaj tam sim no yog 135 A, qhov ua haujlwm ntawm qhov hluav taws xob yog 1.76V, qhov tso zis hluav taws xob kho qhov muag ntau dua 150 W, thiab tsis muaj qhov tshwm sim thermal saturation thaum txhaj tshuaj tam sim no yog 100 A, qhov siab tshaj plaws electro -optical conversion efficiency yog 65.5 feem pua, uas yog lub siab tshaj plaws efficiency ntawm 808 nm semiconductor laser array qhia nyob rau hauv Suav teb.

Daim ntawv thov ntawm 808nm semiconductor laser

Lub semiconductor laser yog cov paub tab ua ntej, nrog kev nce qib ntawm ib chav kawm ntawm lasers, vim nws qhov dav wavelength ntau, yooj yim ntau lawm, tsis tshua muaj nqi, yooj yim ntawm loj ntau lawm, thiab me me, hnav, lub neej ntev, nyob rau hauv no, ntau yam ceev ceev txoj kev loj hlob, ntau yam kev siv, H muaj ntau tshaj 300 hom, daim ntawv thov tseem ceeb tshaj plaws ntawm lub semiconductor laser yog Gb nroog network. Daim ntawv thov ntau yam ntawm semiconductor lasers npog tag nrho cov teb ntawm optoelectronics thiab tau dhau los ua cov thev naus laus zis tseem ceeb ntawm kev tshawb fawb optoelectronics niaj hnub no. Semiconductor laser nyob rau hauv laser ntau, laser radar, laser kev sib txuas lus, laser analog riam phom, laser ceeb toom, laser qhia thiab taug qab, ignition thiab detonation, tsis siv neeg tswj, nrhiav kom tau cov twj paj nruag, thiab hais txog.

Noodles tau siv dav thiab tsim kev lag luam dav. 808nm semiconductor lasers muaj cov ntawv thov tseem ceeb hauv kev ua cov laser ntawm precision mechanical qhov chaw thiab kuj dhau los ua qhov zoo tshaj plaws thiab muaj txiaj ntsig siv lub teeb pom kev zoo rau cov khoom siv hauv lub xeev lasers. Vim nws txoj kev ua haujlwm siab, kev ntseeg siab, thiab qhov zoo ntawm miniaturization, cov khoom siv lub xeev lasers tau hloov kho tas li.

Hauv kev lag luam luam ntawv thiab kev kho mob, 808nm semiconductor lasers kuj muaj cov ntawv thov. Tsis tas li ntawd, 808nm semiconductor lasers tau dav siv nyob rau hauv optical disc systems, xws li CD players, thiab DVD systems thiab high-density optical nco pom nto emission lasers nyob rau hauv optical discs, printers, thiab cov lus qhia muaj ib tug tseem ceeb heev daim ntaub ntawv. Vim tias 808nm semiconductor laser tuaj yeem ua tiav wavelength tuning los ntawm kev hloov cov magnetic teb los yog kho qhov tam sim no, thiab cov zis laser nrog ib txoj kab nqaim heev tuaj yeem tau txais, semiconductor laser tuaj yeem siv rau kev tshawb fawb spectral high-resolution. Lub laser tuned yog ib qho cuab yeej tseem ceeb rau txoj kev loj hlob sai ntawm laser spectroscopy nyob rau hauv-tob kawm txog cov qauv ntawm cov teeb meem. Lub high-power mid-infrared (3.51m) LD muaj ntau yam kev siv hauv infrared countermeasures, infrared teeb pom kev zoo, liDAR, atmospheric Windows, free chaw sib txuas lus, atmospheric surveillance, thiab tshuaj spectroscopy.

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.