Siv rau kev xaiv ib hom fiber laser

Siv rau kev xaivib hom fiber laser
Hauv kev siv ua haujlwm, xaiv ib hom kev tsim nyoglaser fiberyuav tsum muaj kev ntsuas qhov hnyav ntawm ntau yam kev ntsuas kom ntseeg tau tias nws qhov kev ua tau zoo phim cov kev xav tau ntawm daim ntawv thov, ib puag ncig ua haujlwm thiab cov kev txwv ntawm cov peev nyiaj. Tshooj no yuav muab cov txheej txheem xaiv ua tau raws li qhov xav tau.
Txoj kev xaiv raws li cov xwm txheej ntawm daim ntawv thov
Cov kev cai rau kev ua tau zoocov laserssib txawv ntau heev nyob rau ntau qhov xwm txheej ntawm daim ntawv thov. Kauj ruam thawj zaug hauv kev xaiv yog kom meej meej txog cov kev xav tau tseem ceeb ntawm daim ntawv thov.
Kev ua cov khoom siv precision thiab micro-nano manufacturing: Cov ntawv thov no suav nrog kev txiav zoo, drilling, semiconductor wafer dicing, micron-level marking thiab 3D printing, thiab lwm yam. Lawv muaj cov kev xav tau siab heev rau qhov zoo ntawm lub teeb thiab qhov loj ntawm qhov chaw. Yuav tsum xaiv lub laser nrog M² factor ze li sai tau rau 1 (xws li <1.1). Lub zog tso zis yuav tsum tau txiav txim siab raws li cov khoom siv tuab thiab kev ua haujlwm ceev. Feem ntau, lub zog txij li kaum txog pua pua watts tuaj yeem ua tau raws li qhov xav tau ntawm feem ntau micro-processing. Hais txog wavelength, 1064nm yog qhov kev xaiv zoo tshaj plaws rau feem ntau cov khoom siv hlau ua vim nws qhov kev nqus siab thiab tus nqi qis ib watt ntawm lub zog laser.
Kev tshawb fawb txog kev tshawb fawb thiab kev ntsuas siab: Cov xwm txheej siv suav nrog cov tweezers kho qhov muag, lub cev atom txias, spectroscopy siab thiab interferometry. Cov teb no feem ntau muaj kev nrhiav kev monochromaticity, kev ruaj khov zaus thiab kev ua suab nrov ntawm lasers. Cov qauv nrog cov kab nqaim (txawm tias ib qho zaus) thiab suab nrov qis yuav tsum tau muab qhov tseem ceeb. Lub wavelength yuav tsum tau xaiv raws li kab resonance ntawm ib qho atom lossis molecule tshwj xeeb (piv txwv li, 780nm feem ntau yog siv rau kev txias rubidium atoms). Bias maintenance output feem ntau yog qhov tsim nyog rau kev sim cuam tshuam. Qhov xav tau fais fab feem ntau tsis siab, thiab ntau pua milliwatts rau ntau watts feem ntau txaus.
Kev Kho Mob thiab biotechnology: Cov ntawv thov suav nrog kev phais qhov muag, kev kho tawv nqaij thiab kev siv fluorescence microscopy imaging. Kev nyab xeeb ntawm qhov muag yog qhov tseem ceeb tshaj plaws, yog li cov lasers nrog wavelengths ntawm 1550nm lossis 2μm, uas nyob hauv qhov chaw nyab xeeb ntawm qhov muag, feem ntau raug xaiv. Rau cov ntawv thov kuaj mob, yuav tsum tau them sai sai rau kev ruaj khov ntawm lub zog; Rau cov ntawv thov kho mob, lub zog tsim nyog yuav tsum tau xaiv raws li qhov tob ntawm kev kho mob thiab cov kev xav tau zog. Qhov yooj ywm ntawm kev xa hluav taws xob yog qhov zoo dua hauv cov ntawv thov zoo li no.
Kev Sib Txuas Lus thiab Kev Tshawb Pom: Kev tshawb pom fiber optic, liDAR thiab kev sib txuas lus optical hauv qhov chaw yog cov kev siv ib txwm muaj. Cov xwm txheej no xav taulaserkom muaj kev ntseeg siab, kev hloov pauv ib puag ncig thiab kev ruaj khov mus sij hawm ntev. Lub 1550nm band tau dhau los ua qhov kev xaiv zoo tshaj plaws vim nws qhov kev poob qis tshaj plaws hauv cov fibers optical. Rau cov kab ke coherent detection (xws li coherent lidar), yuav tsum muaj lub laser linearly polarized nrog lub linewidth nqaim heev ua lub oscillator hauv zos.
2. Kev xaiv qhov tseem ceeb ntawm cov kev teeb tsa tseem ceeb
Ntsib nrog ntau yam kev ntsuas, kev txiav txim siab tuaj yeem ua raws li cov hauv qab no tseem ceeb:
Cov kev txiav txim siab tseem ceeb: Ua ntej, txiav txim siab qhov wavelength thiab qhov zoo ntawm lub teeb. Qhov wavelength yog txiav txim siab los ntawm cov kev xav tau tseem ceeb ntawm daim ntawv thov (cov yam ntxwv ntawm kev nqus cov khoom, cov qauv kev nyab xeeb, cov kab atomic resonance), thiab feem ntau tsis muaj chaw rau kev cuam tshuam. Qhov zoo ntawm lub teeb ncaj qha txiav txim siab qhov ua tau yooj yim ntawm daim ntawv thov. Piv txwv li, kev ua haujlwm raug tsis tuaj yeem lees txais lasers nrog M² siab dhau.
Cov kev ntsuas kev ua tau zoo: Qhov thib ob, xyuam xim rau lub zog tso zis thiab kab dav / polarization. Lub zog yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm lub zog lossis kev ua haujlwm ntawm daim ntawv thov. Cov yam ntxwv ntawm kab dav thiab polarization yog txiav txim siab raws li txoj kev tshwj xeeb ntawm daim ntawv thov (xws li seb puas cuam tshuam lossis zaus ob npaug). Cov kev ntsuas ua tau zoo: Thaum kawg, xav txog kev ruaj khov (xws li kev ruaj khov ntawm lub zog tso zis ntev), kev ntseeg tau (lub sijhawm ua haujlwm tsis muaj qhov txhaum), kev siv hluav taws xob ntim, kev sib raug zoo ntawm interface thiab tus nqi. Cov kev ntsuas no cuam tshuam rau qhov nyuaj ntawm kev koom ua ke thiab tag nrho tus nqi ntawm kev muaj laser hauv qhov chaw ua haujlwm tiag tiag.

3. Kev xaiv thiab kev txiav txim siab ntawm ib hom thiab ntau hom
Txawm hais tias tsab xov xwm no tsom mus rau ib homcov laser fiber ntau, nws yog ib qho tseem ceeb kom nkag siab meej txog qhov tsim nyog ntawm kev xaiv ib hom hauv kev xaiv tiag tiag. Thaum cov kev xav tau tseem ceeb ntawm daim ntawv thov yog qhov ua tiav siab tshaj plaws, thaj chaw cuam tshuam cua sov me tshaj plaws, qhov muaj peev xwm tsom mus rau qhov kawg lossis qhov deb tshaj plaws, ib hom fiber laser yog tib qho kev xaiv raug. Ntawm qhov tod tes, yog tias daim ntawv thov feem ntau cuam tshuam nrog kev vuam phaj tuab, kev kho qhov chaw loj lossis kev sib kis hluav taws xob luv luv, thiab qhov tseeb qhov tseeb tsis siab, ces multimode fiber lasers yuav dhau los ua qhov kev xaiv pheej yig dua thiab siv tau vim lawv lub zog tag nrho siab dua thiab tus nqi qis dua.