Hauv kev siv laser niaj hnub no, beam zoo tau dhau los ua ib qho kev ntsuas tseem ceeb tshaj plaws rau kev ntsuas tag nrho kev ua haujlwm ntawm lub laser. Seb nws's micron-theem precision txiav hauv kev tsim khoom lossis kev tshawb pom ntev hauv laser ntau yam, beam zoo feem ntau txiav txim siab qhov ua tiav lossis tsis ua tiav ntawm daim ntawv thov.
Yog li, dab tsi yog beam zoo? Nws cuam tshuam li cas rau kev ua haujlwm laser? Thiab yuav ua li cas ib tug yuav xaiv qhov zoo beam kom haum rau cov kev thov tshwj xeeb?
1. Beam Quality yog dab tsi?
Cias muab tso, beam zoo yog hais txog qhov spatial propagation yam ntxwv ntawm ib tug laser beam. Nws piav qhia tias lub teeb pom kev zoo npaum li cas, nws tus cwj pwm sib txawv, thiab qhov sib txawv ntawm nws lub zog npaum li cas.
Nyob rau hauv cov ntaub ntawv zoo, lub laser beam zoo li ib tug zoo meej Gaussian beam, featuring lub me tshaj divergence lub kaum sab xis thiab qhov zoo tshaj plaws focusing kev kawm. Txawm li cas los xij, vim yog yam xws li cov qauv tsim, cov khoom siv, thiab cov teebmeem thermal, lub ntiaj teb laser beams feem ntau raug kev txom nyem los ntawm kev sib kis, distortion, lossis cuam tshuam ntau hom.—thiaj li txo cov nqaj zoo.
2. Common Beam Quality Indicators
①M² Factor (Beam Propagation Factor)
Tus M² tus nqi yog qhov tseem ceeb parameter uas siv los ntsuas lub beam zoo.
M² = 1 qhia tias lub teeb Gaussian zoo meej.
M² > 1 txhais tau hais tias lub beam zoo degrades, thiab lub focusing peev xwm phem zuj zus.
Hauv cov ntawv thov kev lag luam, M² Qhov tseem ceeb nyob rau hauv 1.5 feem ntau yuav tsum tau, thaum scientific-qib lasers tsom rau M² tus nqi ze li 1 li sai tau.
②Beam Divergence
Beam divergence piav qhia ntau npaum li cas lub laser beam expands raws li nws propagates nyob ntev.
Qhov sib txawv me me txhais tau hais tias cov kab teeb pom kev ntau dua, qhov me me focal me ntsis, thiab ntau dua qhov tseeb ntawm qhov ntev dua.
③Beam Profile thiab Fais Fais Distribution
Lub teeb pom kev zoo yuav tsum muaj qhov sib luag, cov kab teeb pom kev zoo nrog lub siab siv qhov chaw. Qhov no ua kom pom tseeb thiab tswj tau lub zog tso tawm rau kev txiav, kos npe, thiab lwm yam kev siv.
3. Beam Quality cuam tshuam li cas rau kev siv tiag tiag hauv ntiaj teb
①Precision Processing (Txiav / Vuam / Marking):
Beam zoo txiav txim siab qhov chaw me me thiab lub zog ceev, cuam tshuam rau kev ua haujlwm raug thiab ua haujlwm tau zoo.
②Kev kho mob Lasers:
Beam zoo cuam tshuam li cas lub zog raug xa mus rau cov ntaub so ntswg thiab tswj tau zoo npaum li cas thermal diffusion.
③Laser Ranging / LIDAR:
Beam zoo ncaj qha cuam tshuam kev tshawb nrhiav ntau yam thiab kev daws teeb meem spatial.
④Kev sib txuas lus kho qhov muag:
Beam zoo cuam tshuam cov teeb liab hom purity thiab bandwidth muaj peev xwm.
⑤Kev Tshawb Fawb Txog Kev Tshawb Fawb:
Beam zoo ua kom muaj kev sib raug zoo thiab kev ruaj ntseg hauv kev cuam tshuam lossis kev sim kho qhov muag tsis pom.
4. Yam tseem ceeb cuam tshuam rau Beam Quality
①Laser Structure Tsim:
Ib hom lasers feem ntau muab cov nqaj zoo dua li ntau hom lasers.
②Tau txais Medium & Resonator Tsim:
Cov kev cuam tshuam hom kev faib tawm thiab beam stability.
③Thermal Effect Management:
Tsis zoo cua sov dissipation tuaj yeem ua rau thermal lensing thiab beam distortion.
④Pump Uniformity & Waveguide Structure:
Cov twj tsis sib xws lossis cov qauv tsis xws luag tuaj yeem ua rau beam zoo degradation.
5. Yuav Ua Li Cas Txhim Kho Beam Zoo
①Optimize Device Architecture:
Siv ib hom waveguides thiab symmetric resonator tsim.
②Thermal Management:
Kev sib xyaw ua kom muaj cua sov ua kom sov lossis ua kom txias kom txo tau cov kab hluav taws xob thermally induced distortion.
③Beam-shaping Optics:
Siv cov collimators, spatial filters, los yog hom converters.
④Digital Control & Cov Lus Qhia:
Siv lub sij hawm real-time wavefront nrhiav kom pom thiab hloov kho qhov muag kom ua tiav kev kho kom zoo.
6. Cov lus xaus
Beam zoo yog ntau tshaj li qhov ntsuas lub cev—it's cov“precision code”ntawm ib lub laser's kev ua haujlwm.
Hauv kev siv tiag tiag hauv ntiaj teb, cov kab teeb pom kev zoo tuaj yeem txhim kho qhov ua tau zoo, raug, thiab kev ntseeg siab ntawm cov tshuab laser. Rau cov neeg siv nrhiav kev ua haujlwm siab thiab sib xws, beam zoo yuav tsum yog qhov tseem ceeb thaum xaiv lub laser.
Raws li kev siv tshuab laser txuas ntxiv mus, peb tuaj yeem cia siab tias lub teeb tswj tau zoo dua hauv cov khoom siv me me thiab muaj zog dua.—paving txoj kev rau tshiab possibilities nyob rau hauv advanced manufacturing, precision tshuaj, aerospace, thiab tshaj.
Post lub sij hawm: Lub Xya hli ntuj-22-2025