7.13W全固态1319nm宏微脉冲激光器  

7.13 W all-solid-state 1319 nm macro-micro pulse laser

作　　者：鲁燕华[1] 张雷[1] 刘东[1] 马毅[1] 唐淳[1] 王卫民[1] 

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900

出　　处：《强激光与粒子束》2009年第11期1604-1606,共3页High Power Laser and Particle Beams

摘　　要：研制了一台高效率全固态平均功率7.13 W的1 319 nm宏微脉冲激光器。激光器采用热稳Z形折叠腔,增益模块采用自行研制的准连续15个二极管芯片环形泵浦的Nd:YAG模块,采用主动声光锁模器作为锁模元件,并在腔内插入倍频KTP晶体对激光器的输出尖峰进行抑制。为了获得稳定的锁模状态,对激光器腔长进行了精确设计和调节。当激光器腔长与锁模器驱动频率匹配时,获取了宏脉冲重复频率400 Hz、脉宽约190μs,微脉冲重复频率95.6 MHz、脉宽小于1.0 ns的1 319 nm激光脉冲。A high-efficiency, all-solid-state, 7.13 W macro-micro pulse 1 319 nm laser has been developed. The laser used thermal stabilized Z-shaped folded cavity. The gain module developed by ourselves adopted quasi continuous wave 15 diode bars ring-pumped Nd：YAG module. An active acousto optics mode locker was used as the mode locked device. A second harmonic generation KTP crystal was inserted into the resonator for spike suppression. To get stable mode locked state, the length of the laser was exactly designed and adjusted. When the cavity length was matched to the drive frequency of the acousto-optics mode locker, the macro-micro pulse 1 319 nm laser was successfully obtained. The repetition rate of macro pulses was 400 Hz and the pulse width was about 190 μs. The repetition rate of micro pulses was 95.6 MHz and the pulse width was less than 1.0 ns.

关 键 词：激光器 宏微脉冲 锁模 折叠腔 弛豫振荡 

分 类 号：TN248.1[电子电信—物理电子学]