Technical evolution ntawm siab zog fiber ntau lasers

Technical evolution ntawm siab zog fiber ntau lasers

Optimization ntawmfiber ntau laserqauv

1, qhov chaw teeb lub twj tso kua mis qauv

Thaum ntxov fiber ntau lasers feem ntau siv optical twj tso kua mis,lasertso zis, nws lub zog tso zis yog tsawg, thiaj li yuav txhim kho cov zis fais fab ntawm fiber ntau lasers nyob rau hauv lub sij hawm luv luv ntawm lub sij hawm yog ib qho nyuaj dua. Nyob rau hauv 1999, lub zog tso zis ntawm fiber ntau laser kev tshawb fawb thiab kev loj hlob teb tsoo 10,000 watts thawj zaug, cov qauv ntawm lub fiber laser yog tsuas yog siv optical bidirectional siv, tsim ib tug resonator, nrog rau kev tshawb fawb ntawm txoj kab nqes efficiency ntawm lub fiber. laser mus txog 58.3%.
Txawm li cas los xij, txawm hais tias kev siv cov twj fiber ntau lub teeb thiab laser coupling thev naus laus zis los tsim fiber ntau lasers tuaj yeem txhim kho lub zog tso zis ntawm fiber ntau lasers, tab sis tib lub sijhawm muaj qhov nyuaj, uas tsis yog qhov zoo rau lub lens kho qhov muag los tsim txoj kev kho qhov muag, ib zaug lub laser yuav tsum tau tsiv mus nyob rau hauv tus txheej txheem ntawm lub tsev kho qhov muag txoj kev, ces txoj kev kho qhov muag kuj yuav tsum tau rov kho dua, uas txwv tsis pub siv dav ntawm optical twj tso kua mis qauv fiber ntau lasers.

2, ncaj oscillator qauv thiab MOPA qauv

Nrog txoj kev loj hlob ntawm fiber ntau lasers, cladding fais fab strippers tau maj mam hloov lub lens Cheebtsam, simplifying txoj kev loj hlob cov kauj ruam ntawm fiber ntau lasers thiab indirectly txhim kho cov txij nkawm efficiency ntawm fiber lasers. Qhov kev txhim kho no qhia txog qhov ua tau zoo zuj zus ntawm fiber ntau lasers. Direct oscillator qauv thiab MOPA qauv yog ob lub qauv ntawm fiber ntau lasers ntawm lub khw. Tus qauv oscillator ncaj qha yog tias cov grating xaiv lub wavelength nyob rau hauv tus txheej txheem ntawm oscillation, thiab ces outputs xaiv wavelength, thaum MOPA siv lub wavelength xaiv los ntawm grating raws li lub noob teeb, thiab noob lub teeb yog amplified nyob rau hauv qhov kev txiav txim ntawm thawj. -level amplifier, yog li lub zog tso zis ntawm fiber ntau laser kuj yuav raug txhim kho rau qee yam. Rau lub sijhawm ntev, fiber ntau lasers nrog MPOA qauv tau siv los ua cov qauv nyiam rau lub zog fiber ntau lasers. Txawm li cas los xij, cov kev tshawb fawb tom ntej tau pom tias cov khoom siv hluav taws xob muaj zog hauv cov qauv no yooj yim ua rau muaj qhov tsis ruaj khov ntawm qhov chaw faib khoom hauv fiber ntau laser, thiab cov zis laser brightness yuav cuam tshuam rau qee qhov, uas tseem muaj kev cuam tshuam ncaj qha. nyob rau hauv high-power output nyhuv.

Nrog rau txoj kev loj hlob ntawm kev siv tshuab

Lub tshuab nqus dej wavelength ntawm ytterbium-doped fiber ntau laser thaum ntxov yog feem ntau 915nm lossis 975nm, tab sis ob lub twj tso kua mis no yog qhov nqus cov peaks ntawm ytterbium ions, yog li nws yog hu ua direct pumping, direct siv tsis tau dav siv vim quantum poob. Nyob rau hauv-band siv tshuab yog ib qho kev txuas ntxiv ntawm kev siv tshuab ncaj qha, nyob rau hauv uas lub wavelength ntawm lub twj tso kua mis wavelength thiab transmitting wavelength zoo ib yam, thiab quantum poob tus nqi ntawm in-band twj yog me dua li ntawm cov twj tso kua mis.

Lub zog fiber ntau lasertechnology kev loj hlob tsis muaj zog

Txawm hais tias fiber ntau lasers muaj cov nqi siab hauv kev ua tub rog, kev kho mob thiab lwm yam kev lag luam, Tuam Tshoj tau txhawb kev siv dav ntawm fiber ntau lasers los ntawm ze li ntawm 30 xyoo ntawm kev tshawb fawb thiab kev tsim technology, tab sis yog tias koj xav ua fiber ntau lasers tuaj yeem tso zis ntau zog, tseem muaj. ntau bottlenecks nyob rau hauv uas twb muaj lawm technology. Piv txwv li, seb lub zog tso zis ntawm fiber ntau laser tuaj yeem ncav cuag ib hom fiber ntau 36.6KW; Lub zog ntawm kev siv lub zog ntawm fiber ntau laser tso zis zog; Kev cuam tshuam ntawm thermal lens nyhuv ntawm lub zog tso zis ntawm fiber ntau laser.

Tsis tas li ntawd, kev tshawb fawb ntawm cov khoom siv hluav taws xob ntau dua ntawm fiber ntau laser yuav tsum xav txog kev ruaj ntseg ntawm transverse hom thiab photon darkening nyhuv. Los ntawm kev tshawb nrhiav, nws yog qhov tseeb tias qhov cuam tshuam ntawm kev hloov pauv hloov tsis ruaj khov yog cov cua sov fiber ntau, thiab cov nyhuv photon darkening feem ntau yog hais txog tias thaum fiber ntau laser tsis tu ncua tso tawm ntau pua watts lossis ob peb kilowatts ntawm lub zog, qhov tso zis hluav taws xob yuav qhia tau tias muaj kev cuam tshuam loj heev. Kev poob sai sai, thiab muaj qee qhov kev txwv ntawm qhov txuas ntxiv zog siab tso zis ntawm fiber ntau laser.

Txawm hais tias qhov tshwj xeeb ua rau cov nyhuv photon darkening tsis tau txhais meej meej tam sim no, cov neeg feem coob ntseeg tias qhov chaw nruab nrab ntawm cov pa oxygen thiab cov nqi hloov pauv tuaj yeem ua rau muaj qhov tshwm sim ntawm photon darkening nyhuv. Ntawm ob yam no, txoj hauv kev hauv qab no tau thov kom inhibit photon darkening nyhuv. Xws li txhuas, phosphorus, thiab lwm yam, yog li kom tsis txhob them tus nqi hloov pauv, thiab tom qab ntawd qhov kev ua haujlwm zoo fiber ntau raug kuaj thiab siv, tus qauv tshwj xeeb yog tswj hwm 3KW lub zog tso tawm rau ob peb teev thiab tswj 1KW lub zog ruaj khov rau 100 teev.