Nyob rau hauv xyoo tas los no, 3D tshuab luam ntawv tau nce siv ntau yam kev lag luam, tshwj xeeb tshaj yog nyob rau hauv precision manufacturing thiab optics. Ib pab neeg tshawb fawb los ntawm University of Stuttgart hauv lub teb chaws Yelemees tsis ntev los no tau ua ib qhokev tawg lojthaum lawv ua qauv qhia thawj zaug tias qhov me me optics raws li 3D-polymers muaj peev xwm tiv taus cua sov thiab lub zog tsim hauv lub laser. Qhov kev tshawb pom no ua rau txoj hauv kev rau kev tsim cov khoom pheej yig, compact, thiab ruaj khov laser qhov chaw uas tseem ceeb heev nyob rau hauv ntau yam ntawm daim ntawv thov scenarios, tshwj xeeb tshaj yog nyob rau hauv LIDAR systems siv nyob rau hauv tus kheej-tsav tsheb.
Simon Angstenberger, tus thawj coj ntawm pab neeg tshawb fawb ntawm lub koom haum ntawm Physics IV ntawm University of Stuttgart, tau hais tias: "Siv 3D tshuab luam ntawv, peb tau tsim cov khoom zoo micro-optics ncaj qha rau ntawm cov iav fibers hauv laser, txo nws qhov loj me. . Nov yog thawj zaug uas 3D-luam tawm optics tau siv nyob rau hauv lub laser tiag tiag, ua kom pom tseeb tias lawv muaj kev puas tsuaj siab rau qhov pib thiab ruaj khov. "
Nyob rau hauv phau ntawv journal Optics Letters, pab neeg piav qhia txog yuav ua li cas lawv 3D luam tawm cov micro-optics ncaj qha rau ntawm fiber ntau optical, yog li nruj sib txuas cov fiber ntau nrog lub laser siv lead ua hauv ib lub laser oscillator. Lub hybrid laser tau ua haujlwm ruaj khov ntawm 1063.4 nm nrog lub zog tso zis ntau dua 20 mW thiab lub zog tso zis siab tshaj plaws ntawm 37 mW.
Lub laser tshiab muab cov compactness, robustness, thiab cov nqi qis zoo ntawm fiber ntau lasers nrog cov txiaj ntsig ntawm crystal-based solid-state lasers, uas muaj ntau yam kev ua tau zoo xws li lub zog sib txawv thiab xim. Qhov tsim ntawm fiber ntau-coupled laser siv lub 3D-luam lo ntsiab muag yog pom nyob rau hauv daim duab 1.
Simon Angstenberger sau hais tias, "Txog tam sim no, 3D luam tawm optics tau siv feem ntau hauv cov xwm txheej tsis tshua muaj zog, xws li endoscopy. Txawm li cas los xij, peb pom lub peev xwm ntawm cov thev naus laus zis no rau kev siv hluav taws xob siab, xws li photolithography thiab laser npav. tias cov 3D micro-optics luam tawm ncaj qha rau ntawm fiber ntau tuaj yeem mloog ntau lub teeb rau ib qho taw tes, uas muaj txiaj ntsig zoo hauv kev siv tshuaj, xws li kev puas tsuaj ntawm cov qog nqaij hlav cancer. "
Ua microscale lo ntsiab muag ncaj qha ntawm optical fibers
Lub koom haum ntawm Physics IV ntawm University of Stuttgart muaj kev tshawb fawb ntau hauv kev ua haujlwm ntawm 3D-luam micro-optics, nrog rau cov kws tshaj lij hauv kev luam ntawv ncaj qha ntawm fiber ntau optical. Lawv siv 3D luam ntawv txoj kev hu ua "ob-photon polymerization", nyob rau hauv uas ib tug infrared laser tsom mus rau ib tug UV-rhiab photoresist.
Nyob rau hauv lub focal cheeb tsam ntawm lub laser, ob infrared photons yog absorbed nyob rau tib lub sij hawm, uas txhim khu kev tiv thaiv UV. Los ntawm kev txav mus rau qhov chaw focal, ntau cov duab tuaj yeem tsim nrog kev ua haujlwm siab. Cov thev naus laus zis no tsis yog tsuas yog ua rau kev tsim cov khoom me me ntawm optics tab sis kuj tseem muaj cov haujlwm tshiab xws li kev tsim cov khoom siv kho qhov muag dawb lossis cov tshuab lens complex.
Cov 3D luam tawm cov khoom no yog ua los ntawm cov khoom siv polymers, thiab peb tsis paub meej tias lawv puas tuaj yeem tiv taus qhov kub thiab lub zog hluav taws xob ntau hauv laser kab noj hniav, "Simon Angstenberger hais. Txawm li cas los xij, tom qab ntawd nws tau pom tias tsis muaj kev puas tsuaj. ntawm lub lo ntsiab muag txawm tias tom qab khiav lub laser rau lub sijhawm ntev ntawm ob peb teev, uas ua pov thawj lawv qhov kev ruaj ntseg siab heev. "
Hauv qhov kev tshawb fawb tshiab no, cov kws tshawb fawb tau siv lub tshuab luam ntawv 3D tsim los ntawm Nanoscribe los tsim cov lo ntsiab muag nrog txoj kab uas hla ntawm 0.25 hli thiab qhov siab ntawm 80 μm ntawm qhov kawg ntawm cov fibers optical ntawm tib txoj kab uas hla los ntawm ob- photon polymerization (Daim duab 2). Cov txheej txheem suav nrog kev tsim cov khoom siv kho qhov muag, ntxig cov fiber ntau rau hauv 3D tshuab luam ntawv, thiab tom qab ntawd luam tawm cov microstructure ntawm qhov kawg ntawm cov fiber ntau, uas yuav tsum tau muaj qhov tseeb ntawm qhov kev sib tw ntawm cov ntawv luam tawm fibers thiab hauv kev luam ntawv nws tus kheej.
Tsim Hybrid Laser
Tom qab 3D luam ntawv tiav, pab pawg tau teeb tsa txog kev sib dhos lub laser thiab cov kab noj hniav laser. Tsis zoo li cov kab noj hniav ib txwm siv uas siv cov iav loj thiab kim, lawv siv cov fibers los ua ib feem ntawm cov kab noj hniav, tsim kom muaj ib qho tshwj xeeb hybrid fiber-crystal laser. Hauv qhov tsim no, cov lo ntsiab muag me me uas luam tawm ntawm qhov kawg ntawm cov fiber ntau yog siv los ua kom pom tseeb thiab sau los yog ob peb lub teeb tawm thiab tau txais los ntawm laser siv lead ua. Txhawm rau txhim kho kev ruaj ntseg ntawm lub kaw lus thiab txo qhov cuam tshuam ntawm huab cua turbulence, cov kws tshawb fawb tau muab cov fiber ntau rau hauv ib lub thawv. Qhov tseem ceeb, cov siv lead ua thiab cov ntawv luam tawm muaj qhov loj me ntawm 5 × 5 cm².
Los ntawm tsis tu ncua kaw lub zog tso zis ntawm lub laser rau ob peb teev, cov kws tshawb fawb tau tshawb xyuas tias tsis muaj kev puas tsuaj ntawm kev ua haujlwm ntawm 3D-luam tawm optics hauv lub cev thiab nws tsis cuam tshuam rau kev ua haujlwm ntev ntawm lub laser. Tsis tas li ntawd, kev soj ntsuam ntawm optics nyob rau hauv lub laser kab noj hniav siv ib tug scanning electron microscope qhia tsis pom kev puas tsuaj. Simon Angstenberger tau sau tseg tias, "Peb pom tias cov ntawv luam tawm tau ruaj khov dua piv rau kev lag luam fiber ntau Bragg grating peb siv, uas thaum kawg txwv peb lub zog siab tshaj plaws."
Pab neeg tshawb fawb tam sim no tab tom ua haujlwm txhawm rau txhim kho qhov ua tau zoo ntawm 3D luam tawm optics. Lawv npaj yuav siv cov fiber ntau optical nrog optimized dawb-daim ntawv lo ntsiab muag thiab aspherical lens tsim los yog sim luam cov lens ua ke ncaj qha rau ntawm fiber ntau los txhawb cov zis hluav taws xob. Nyob rau tib lub sijhawm, lawv npaj yuav siv ntau hom crystals nyob rau hauv lasers, uas yuav pab kom customization thiab optimization ntawm cov zis cov yam ntxwv rau tej daim ntawv thov.
