Efficient Laser-Diode End-Pumped Passively Q-Switched Mode-Locked Yb：LYSO Laser Based on SESAM  

作　　者：徐世祥 李文雪 郝强 翟惠 曾和平 

机构地区：[1]State Key Laboratory of Precision Spectroscopy, and Department of Physics, East China Normal University, Shanghai 200062

出　　处：《Chinese Physics Letters》2008年第2期548-551,共4页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Programme of China under Grant No 2006CB806005, the Shanghai Pujiang Program （06PJ14035）, the National Natural Science Foundation of China under Grant No 10774045, the Key Project of the Ministry of Education of China （44K20080）, and the SRF for ROCS, SEM.

摘　　要：We report an efficient Q-switched laser action based on a semiconductor saturable absorber mirrors （SESAMs） as passively Q-switched laser starter and a Yb：LYSO alloyed crystal as gain material pumped directly by 974nm InGaAs laser diodes. The output pulse duration is measured to be about 7μs, while the average power and the repetition rate of the pulse chain are about 0.92 W and 6.2 kHz, respectively, under 12.5 W absorbed pumping power. The Q-switched mode-locked pulse train is also observed in this setup. The laser performance shows that Yb：LYSO is a promising laser gain medium for laser-diode pumped compact solid-state lasers.We report an efficient Q-switched laser action based on a semiconductor saturable absorber mirrors （SESAMs） as passively Q-switched laser starter and a Yb：LYSO alloyed crystal as gain material pumped directly by 974nm InGaAs laser diodes. The output pulse duration is measured to be about 7μs, while the average power and the repetition rate of the pulse chain are about 0.92 W and 6.2 kHz, respectively, under 12.5 W absorbed pumping power. The Q-switched mode-locked pulse train is also observed in this setup. The laser performance shows that Yb：LYSO is a promising laser gain medium for laser-diode pumped compact solid-state lasers.

关 键 词：PULSARS x-ray spectra relativity and gravitation REDSHIFT 

分 类 号：TN248[电子电信—物理电子学]