Kov yeej! Lub ntiaj teb lub zog siab tshaj plaws 3 μm Mid-Infrared femtosecond fiber ntau laser

Kov yeej! Lub ntiaj teb lub zog siab tshaj plaws 3 μm Mid-InfraredFemtosecond Fiber Laser

Fiber laserTxhawm rau ua kom tiav nruab nrab ntawm cov zis laser laser, thawj kauj ruam yog los xaiv cov khoom siv fiber ntau ntxiv. Nyob rau hauv ze-infrared fiber ntau lasers, quartz iav matrix yog cov khoom siv fiber ntau tshaj plaws uas muaj zog thiab muaj zog heev. Txawm li cas los xij, vim hais tias ntawm cov phonon siab lub zog (1150 cm-1), quartz fiber tsis tuaj yeem siv rau nruab nrab ntawm laser kev sib kis. Txhawm rau kom ua tiav qis kev sib kis qis ntawm nruab nrab-infrared laser, peb yuav tsum tau rov xaiv cov ntaub ntawv fiber ntau, xws li iav sublix lossis iav fluoride iav matrix. Sulfide fiber muaj cov phonon qis tshaj plaws phonon lub zog (txog 350 cm-1), tab sis nws muaj cov teeb meem uas doping kom muaj fiber ntau los tsim kom muaj laser nruab nrab. Txawm hais tias fluoride iav substrate muaj lub zog tsis sib xws (550 cm-instrate kis rau Mid-infrared lasers nrog wavelengths tsawg dua 4 μm. Lub ntiaj teb fluoride tseem ceeb dua, tuaj yeem ua tiav lub ntiaj teb laser tsis tshua muaj zog, uas tuaj yeem muab cov tshuaj pleev plab zom mov hauv nruab nrab, uas tuaj yeem ua tiav doping concentration ntawm mus txog 10 mol. Yog li, fluoride iav matrix yog qhov haum fiber ntau kawg matrix cov khoom rau nruab nrab cov lasers.

Tsis ntev los no, pab neeg ntawm Profess Ruang Shuangchen thiab Professor Guo Muam Chaunyu ntawm Shenzhen University tau tsim lub high-him-hwj chim tau tsim lub high-hwj chimMem Tes Fiber LaserMuaj ntau ntawm 2.8μm hom -cked ER: ZBLAN Fiber oscillator, ib hom er: Zbll Fiber ntau Preaplifier thiab hom loj-hom teb ER: ZBLAN Fiber ntau lub suab nrov.
Raws li tus kheej-compression thiab dlorification txoj kev xav ntawm polarination pulting ua haujlwm thiab hom kev tswj hwm ntawm cov roj hluav taws xob loj, cov thev naus laus zis txias Tus qauv ntawm cov twj tso kua mis ob npaug, lub kaw lus tau 2.8μg ultra-luv mem tes tsim tawm nrog lub zog nruab nrab ntawm 88 FS. Cov ntaub ntawv thoob ntiaj teb ntawm cov hluav taws xob siab tshaj plaws ntawm cov pab pawg tshawb fawb no tau rov qab ua ntxiv.

Daim duab 1 qauv kos duab ntawm ER: Zblan Fiber laser raws li MOPA qauv
Tus qauv ntawm lubfemtosecond laserQhov system tau qhia hauv daim duab 1. Ib hom ob-clad er: Zblan fiber ntawm 3.1 m ntev tau siv raws li doping concentration ntawm 7 mol.% thiab ib qho tub ntxhais lub cheeb ntawm 15 μm (na = 0.12). Nyob rau hauv lub ntsiab tseem ceeb, ob clad loj loj hom teb ER: Zblan fiber ntau nrog qhov ntev ntawm 4 mol.% Thiab ib tug tub ntxhais txoj kab uas hla 30 μm (na = 0.12). Cov tub ntxhais me tub sab loj dua ua rau muaj cov fiber ntau ua rau cov nonlinear coefficiiness thiab tuaj yeem tiv taus ntau dua lub zog. Ob qho kawg ntawm cov tau txais fiber ntau yog fused rau Alf3 Terminal Cap.