LD端面泵浦Nd:YAG/MWCNT被动调Q锁模激光特性研究  

LD-end pumped Nd:YAG/MWCNT passively Q-switched mode-locked laser characteristics

作　　者：李健[1] 张志龙[1] 胡文[1] 许永娜[1] 

机构地区：[1]山东师范大学物理与电子科学学院山东省光学与光子器件技术重点实验室,山东济南250014

出　　处：《山东科学》2015年第3期90-95,共6页Shandong Science

基　　金：国家自然科学基金(61205174)

摘　　要：本文首次研究了以多壁碳纳米管（MWCNT）为饱和吸收体,Nd∶ YAG被动调Q锁模激光器的输出特性.激光器连续光（CW）和调Q锁模（QML）运转平均输出斜效率分别为35.7％和14.9％.实验得到的调Q包络重复频率在45.2～128.8 kHz范围内变化.最短调Q包络脉冲宽度为95 ns,仅包含10个锁模脉冲.最高调Q包络单脉冲能量和锁模脉冲单脉冲能量分别为14.6和1.31 μJ.锁模脉冲宽度约为461 ps,相应的最高峰值功率为2.84 kW.We originally addressed the output characteristics of a diode-pumped passively Q-switched mode-locked Nd：YAG laser with a multi-walled carbon nanotube （MWCNT） as a saturate absorbent. The average slop efficiencies of continuous wave （CW） and Q-switched mode-locking （QML） operation were 35.7% and 14.9%. Repetition rate of Q- switched envelope varied from 45.2 to 128.8 kHz. Width of the shortest Q-switched envelope pulse was 95 ns, containing only 10 mode-locked pulses. The energies of maximal single Q-switched envelope pulse and mode-locked pulse were 14.6 and 1. 31 μJ. The width of mode-locked pulse was about 461 ps, whose highest peak power was 2.84 kW.

关 键 词：LD端面泵浦 被动调Q锁模 多壁碳纳米管 

分 类 号：O437.4[机械工程—光学工程]