Tsis ntev los no, ib pab neeg tshawb fawb los ntawm High Power Laser Unit Technology Laboratory ntawm Shanghai Institute of Optics thiab Precision Machinery (SIPM) ntawm Tuam Tshoj Academy of Sciences (CAS) tau npaj ib tug high-concentration ytterbium-doped quartz fiber los ntawm kev siv txhim kho tshuaj vapor deposition. (MCVD) thev naus laus zis ua ke nrog cov txheej txheem ua kua-theem doping, thiab tsim cov kab noj hniav ultrashort-cavity fiber ntau nrog fiber ntau, uas ua tiav ib zaug ib zaug thiab cov khoom siv high-frequency-locked laser hauv 1-µm band, raws. Cov txiaj ntsig tau nthuav tawm raws li "High ytterbium concentration Yb / Al / P / Ce co-doped silica fiber ntau rau 1-μm ultra-luv kab noj hniav fiber ntau laser daim ntawv thov". High ytterbium concentration Yb/Al/P/Ce co-doped silica fiber rau 1-μm ultra-short kab noj hniav fiber laser daim ntawv thov" tau luam tawm nyob rau hauv Optics Express.
High-performance ib zaus thiab high-frequency hom-xauv fiber ntau lasers xav tau ytterbium-doped fibers nrog siab nce coefficients, siab conversion efficiency thiab tsawg photon darkening. Vim tias qhov tsis tshua muaj kev sib cais ntawm lub ntiaj teb tsis tshua muaj ions nyob rau hauv quartz matrix, lub ntiaj teb tsis tshua muaj ion pawg tshwm sim los ntawm cov doping concentration siab yuav cuam tshuam rau laser kev ua tau zoo ntawm fiber ntau. Pab pawg tshawb fawb tau npaj Yb / Al / P / Ce co-doped quartz fiber ntau los ntawm kev ua kom zoo ntawm cov khoom tseem ceeb, uas Yb ion doping concentration yog 2.5 wt%, thiab cov tub ntxhais nqus coefficient nce mus txog 1400 dB / m ntawm 976 nm.
Daim duab 1. Cov yam ntxwv ntawm cov doped heev Yb/Al/P/Ce quartz fiber ntau. a) refractive index faib, b) doping element faib, c) core poob spectrum, thiab d) core absorption spectrum.
Txhawm rau ua kom pom qhov ua tau zoo ntawm lub laser ntawm tus kheej-tsim high-concentration fiber nyob rau hauv daim ntawv thov scenarios, cov kws tshawb fawb tau siv cov fiber ntau los tsim ob lub ultrashort resonant kab noj hniav nrog tag nrho cov fiber ntau cov qauv rau kev sim laser. Ua ntej, Distributed Bragg Reflection (DBR) laser kab noj hniav yog tsim los siv ib tug 1-cm ytterbium-doped fiber, thiab ib tug longitudinal-mode laser tso zis nrog lub hwj chim ntawm 75 mW thiab ib tug linewidth ntawm 14 kHz tau ua tiav tiav. Tom qab ntawd, lub passive hom-locked fiber ntau laser raws li ib tug semiconductor saturable absorber daim iav (SESAM) tau tsim nrog ib tug nce fiber ntev ntawm 8.4 cm, thiab ib tug pulsed laser tso zis nrog ib tug repetition zaus ntawm 1.23 GHz thiab ib tug mem tes dav ntawm 6.4 ps yog. ua tiav. Cov txiaj ntsig ntawm txoj kev tshawb fawb no qhia tau hais tias kev npaj siab concentration ytterbium-doped quartz fiber ntau nrog laser kev ua tau zoo, yuav tsum tau siv rau high-precision fiber sensing, optical zaus zuag thiab lwm qhov chaw ntawm high-kev kawm fiber laser kev tshawb fawb thiab kev loj hlob.
