Lub cheeb tsam ntawm laser technology yog loj thiab muaj ntau haiv neeg, nrog rau ntau hom kev pab tshwj xeeb daim ntaub ntawv nyob rau hauv ntau industries. Ob tus neeg tseem ceeb hauv daim teb no yog Neodymium-doped Yttrium Aluminium Garnet (Nd: YAG) lasers thiab Fiber lasers. Txawm hais tias ob qho tib si tau hloov pauv lawv cov npe, kev nkag siab qhov sib txawv ntawm lawv yog qhov tseem ceeb rau kev xaiv cov cuab yeej tsim nyog rau kev ua haujlwm. Ntxiv mus, lees paub qhov tseem ceeb ntawmkev ntsuas kev nyab xeebNws yog ib qho tseem ceeb los xyuas kom meej qhov kev noj qab haus huv ntawm txhua tus neeg ua haujlwm koom nrog hauv kev ua haujlwm laser.
Nd:YAG Lasers: Kev Ua Haujlwm ntawm Kev Siv Khoom Siv
Keeb kwm, Nd:YAG lasers tau mus rau kev xaiv rau ntau cov txheej txheem kev lag luam vim lawv muaj peev xwm tsim cov pulses siab zog thiab tswj cov nqaj zoo. Cov lasers no ua haujlwm los ntawm kev siv cov neodymium ions nyob rau hauv ib lub crystalline yttrium aluminium garnet nruab nrab siv teeb nyem lossis diode arrays. Qhov tshwm sim photons tsim lub teeb laser feem ntau ntawm wavelengths nyob ib ncig ntawm 1064 nm. Nrog kev nce qib hauv thev naus laus zis, diode-pumped Nd: YAG lasers tau txhim kho hauv kev ua haujlwm, ua rau lawv tsim nyog rau kev siv xws li cov khoom txiav thiab vuam rau cov txheej txheem kho mob xws li lithotripsy.
Fiber Lasers: Sawv ntawm Lub Hwj Chim Muaj Zog
Fiber lasers, ntawm qhov tod tes, sawv cev rau tiam tshiab ntawm lasers uas muaj qhov tshwj xeeb zoo dua li ib txwm muaj. Lawv siv doped fibers raws li qhov nruab nrab nce, nrog erbium lossis ytterbium ua cov dopants zoo siab los ntawm diode siv. Raws li lub teeb mus los ntawm fiber ntau, nws tsim los ntawm kev txhawb nqa emission, ua lub teeb laser ntawm qhov sib txawv wavelengths nyob ntawm seb cov khoom siv dopant thiab fiber ntau tsim. Paub txog lawv cov kab hluav taws xob zoo tshaj plaws thiab qis dua Beam Parameter Product (BPP), fiber ntau lasers tuaj yeem xa cov zis ntau dua thiab meej, feem ntau nrog cov cheeb tsam uas muaj cua sov tsawg (HAZ). Lawv txoj haujlwm tuaj yeem ua haujlwm tsis tu ncua (CW) lossis hom kev hloov pauv, thiab lawv muaj txiaj ntsig zoo nrog kev saib xyuas tsawg dua vim lawv cov kev tsim kho fiber ntau.
Kev sib txuas ntawm qhov sib txawv: Qhov txawv ntawm Nd: YAG thiab Fiber Lasers
Kev saib ze dua ntawm cov thev naus laus zis no qhia ntau qhov sib txawv. Nd: YAG lasers cia siab rau cov khoom siv hluav taws xob sab nraud xws li lub teeb nyem rau kev siv, uas tuaj yeem cuam tshuam kev ua haujlwm thiab kev tswj xyuas thermal. Hauv qhov sib piv, fiber ntau lasers tsuas yog siv diode twj, pab txhawb rau lawv cov kev ua tau zoo tag nrho. Beam zoo yog lwm qhov sib txawv tseem ceeb; Thaum Nd: YAG lasers paub txog lawv qhov kev ua tau zoo, fiber ntau lasers muab cov kab teeb pom kev zoo dua qub.
Wavelength yooj kuj ua rau ob qhov sib nrug. Nd: YAG lasers feem ntau emit taag wavelengths nyob ib ncig ntawm 1064 nm, nrog ntxiv harmonics muaj nyob rau hauv zaus hloov cov tswv yim. Fiber lasers tuaj yeem hloov kho lawv cov emission spectrum los ntawm kev hloov cov ntaub ntawv dopant thiab fiber ntau tsim, muab ntau dua adaptability rau ntau yam kev siv.
Kev Nyab Xeeb Ua Ntej: Cov Kev Ntsuas Tseem Ceeb rau Kev Tiv Thaiv Tawm tsam Laser Radiation
Txawm hais tias lawv qhov kev ua haujlwm sib txawv, ob qho tib si Nd: YAG thiab fiber ntau lasers xav tau cov txheej txheem kev nyab xeeb nruj los tiv thaiv cov neeg siv los ntawm kev phom sij. Laser tsom iav kev nyab xeeb nrog txaus Optical Density (OD) los thaiv cov wavelengths tshwj xeeb yog qhov tseem ceeb. Piv txwv li, ANSI cov qauv qhia ib qho OD tsawg kawg yog 7 rau kev pom ncaj qha thiab 8 rau kev pom ntawm 1064 nm hluav taws xob los ntawm Nd: YAG lasers. Fiber laser wavelengths yuav txawv, yuav tsum tau tsom iav kom haum rau lawv emission spectrum.
Kev tiv thaiv xws li kev cuam tshuam tiv thaiv kev siv tsis raug cai, thiab cov cim ceeb toom ceeb toom cov neeg ua haujlwm hnav Cov Khoom Tiv Thaiv Tus Kheej (PPE). Cov tswv yim tiv thaiv kab ntsig, suav nrog cov ntaub thaiv npog lossis cov ntaub thaiv npog, yog qhov tseem ceeb los txo qhov raug xwm txheej. Beam dumps yuav tsum tau muab tso rau hauv lub tswv yim kom dissipate tsis siv laser zog.
Kev cob qhia dav dav ntawm laser kev nyab xeeb thiab cov txheej txheem ua haujlwm yog qhov yuav tsum tau ua rau txhua tus neeg ua haujlwm koom nrog hauv kev ua haujlwm laser. Kev tshuaj xyuas tsis tu ncua thiab kev saib xyuas cov tshuab laser thiab cov cuab yeej kev nyab xeeb yog qhov tseem ceeb sib npaug los xyuas kom muaj kev ua raws li cov qauv kev nyab xeeb.
Kev Tshawb Fawb Txog Kev Tshawb Fawb thiab Kev Siv Ua Haujlwm
Cov piv txwv tiag tiag hauv ntiaj teb muab kev nkag siab zoo rau kev siv cov kev ntsuas kev nyab xeeb. Kev tshuaj xyuas cov ntaub ntawv tshawb fawb los ntawm ntau qhov kev lag luam qhia txog yuav ua li cas cov txheej txheem kev nyab xeeb tuaj yeem txo cov kev pheej hmoo cuam tshuam nrog kev ua haujlwm siab laser. Cov kev kawm tau kawm no yog qhov tseem ceeb hauv kev tsim cov txheej txheem yav tom ntej thiab cov kev coj ua zoo tshaj plaws.
Kev sib tham thiab yav tom ntej Outlook
Raws li kev siv tshuab laser txuas ntxiv mus, yog li ua cov teeb meem hauv kev tswj xyuas kev nyab xeeb laser. Cov qauv tshiab, xws li ultrafast lasers thiab cov tswv yim tshiab wavelength tiam, yuav tsis muaj kev poob siab cuam tshuam cov qauv kev nyab xeeb thiab cov khoom tsim. Kev cia siab tias cov kev hloov pauv no thiab hloov kho kev tiv thaiv raws li yog qhov tseem ceeb rau kev nyab xeeb ntawm kev siv tshuab laser rau hauv cov thawj tswj hwm tshiab.
Xaus
Hauv kev xaus, thaum Nd: YAG thiab fiber ntau lasers pab sib txawv niches nyob rau hauv lub laser toj roob hauv pes, lawv qhia ib qho yuav tsum tau rau nruj kev ruaj ntseg ntsuas. Los ntawm kev nkag siab txog cov nuances ntawm cov hom laser no thiab siv cov cuab yeej tiv thaiv tsim nyog thiab cov tswv yim, peb tuaj yeem siv lawv lub zog thaum txo kev pheej hmoo. Raws li thev naus laus zis zuj zus, nws yog qhov yuav tsum tau ceev faj thiab hloov kho peb txoj hauv kev rau laser kev nyab xeeb kom muaj kev noj qab haus huv ntawm txhua tus neeg ua haujlwm hauv cov haujlwm dynamic no.