MQW-LDA泵浦Nd:YLF激光器调Q的动力学过程及双机制作用  

Dynamics of Q-switched MQW-LDA pumped Nd : YLF laser and QS-GS double mechanism action

作　　者：马建伟 周复正[1] 薛强 张正泉[1] 朱三又 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800 [2]上海激光技术研究所,上海200233

出　　处：《光学学报》1993年第3期193-198,共6页Acta Optica Sinica

基　　金：国家自然科学基金资助项目

摘　　要：本文报道了国产多量子阱半导体激光列阵(MQW-LDA)泵浦Nd:YLF调Q脉冲脉宽.峰值功率与输出耦合率、泵浦速率、调制深度及延迟时间之间关系的实验,得到稳定的(起伏<1%)调Q脉冲输出,脉冲能量为0.8μJ,FWHM为70ns,脉冲重复率为100Hz,光-光效率2.5%;利用增益开关和Q开关双机制作用,压窄了调Q脉宽,提高了输出功率.用速率方程理论对过程计算,与实验结果较符合.A Q-switched Nd : YLF laser pumped by home-made MQW-LDA was developed. Pulse width, peak power were studied as functions of pumping energy, modulated depth, optical delay and reflectivity of the output coupling mirror in detail. Stable Q- pulse output (fluctuation< 1 %) was obtained with pulse energy of 0. 8 μJ, FWHM of 70 ns, repetition of 100 Hz and optical to optical efficiency of 2. 5%. When Q-switch and gain switch were applied the peak pulse power was increased and pulse width decreased. A comparison of experimental data with rate-equation theory was made, and agreed well

关 键 词：Q开关 增益 锁模技术 固体激光器 

分 类 号：TN248.4[电子电信—物理电子学]