Fiber laser txiav thiab kho mob
Fiber laser txiav thiab tshuaj, fiber ntau laser txiav tshuab yog doped fiber nws tus kheej raws li cov khoom ua haujlwm, thiab fiber ntau laser txiav tshuab nws tus kheej, tab sis kuj ua lub luag haujlwm ntawm kev qhia yoj lub zog-xeev laser.Resonator, muaj cov khoom siv ua haujlwm, twj tso kua mis peb qhov tseem ceeb.Nyob rau hauv xyoo tas los no, fiber ntau lasers nyob rau hauv kev lag luam teb ntxiv rau ib tug ntau yam ntawm kev siv, thiab cov muaj koob meej ntawm kev kho mob.
Fiber Technology Center, University of Sydney, Australia (OFT C) ntawm Stuart Jackson tau hais tias: " fiber ntau laser txiav tshuab rau kev siv phais, nws yog ib qho tseem ceeb rau cov lasers compact, tsawg dua tu, ntau dua efficiency siab thiab zoo thermal zog ntawm fiber ntau laser.ua rau lawv tshwj xeeb tshaj yog haum rau daim ntaub ntawv phais vim lawv siv lub diode-pum, yog li nws yog heev compact.Fiber zoo dua li cov khoom siv hauv lub xeev laser yog qhov zoo tshaj vim tias nws yooj yim rau kev xav tau kev sib txuas ntxiv fiber ntau, yog li txo tus nqi thiab txo cov txheej txheem Complexity ".
Fiber laser tej tshuab nyob rau hauv 1963 los ntawm Elias Spritzer invention.Ua ntej nws thiaj li nkag mus rau kev lag luam siv, tom qab yuav luag ob xyoos ntawm kev tsim kho lub sijhawm.Thaum ntxov, kev siv ib hom diode laser pumped, tsuas yog hluav taws xob kaum milliliters.Tab sis nws muaj ntau tus neeg siv tseem txaus nyiam vim tias lawv qhov nce siab, nws tuaj yeem ua rau ntau hom kev ua haujlwm tas li ntawm lub ntiaj teb tsis tshua muaj ions, uas yog siv lead ua laser tsis tuaj yeem ua tiav.Xyoo 1990, fiber ntau lasers kom ua tiav theem leap-watt tso zis, tom qab ntawd, qhia txog erbium-doped fiber ntau laser tso zis zog li 4 W, qhov kev txhim kho niaj hnub no peb pom lub zog ntawm 10 W thiab siab dua ib hom fiber ntau lasers foundation.
Nyob rau hauv lub fiber laser tej tshuab, lub fiber nws tus kheej ua raws li ib tug resonant kab noj hniav.Cov khoom siv no feem ntau muaj xws li ib qho erbium doped ib hom tub ntxhais ytterbium (los yog kev sib txuas ntawm no), los yog lub ntiaj teb tsis tshua muaj caij.Lub zog los ntawm cov khoom siv teeb pom kev zoo, yog txuas mus rau cladding ntawm fiber, thiab tom qab ntawd mus rau hauv cov tub ntxhais, lub twj tso kua mis ua pant atoms.Hauv kev kho mob, lub wavelength yog qhov xav tau tshaj plaws yog: 1.3μm band rau duab, 1.5μm (qhov siab nqus dej) -4μm band rau kev phais, xws li lub zog ntawm milliliters mus rau ntau tshaj 100 W.
Jackson tau hais tias: "Kev siv CW lasers, biomedical applications, tshwj xeeb tshaj yog muaj zog CW lasers, tuaj yeem tau txais txiaj ntsig los ntawm fiber ntau laser txiav tshuab los ntawm fiber ntau laser txiav tshuab muab kev ua haujlwm siab, kev sib tw dav, thiab tag nrho cov zis.fais fab ntau yam muaj qhov zoo ntawm cov nqaj zoo dua, tshwj xeeb tshaj yog muaj zog;yog li ntawd fiber ntau lasers nyob rau hauv daim ntawv thov kev kho mob txuas ntxiv mus.“
Post lub sij hawm: Jan-31-2019