高重频Nd:YVO_4声光调Q与RTP电光调Q激光器实验对比分析  

Experiment comparison of acousto-optical Q-switching and RTP electro-optical Q-switching of high repetition frequency Nd:YVO_4 laser

作　　者：张健[1] 于永吉[1] 姜承尧 王子健[1] 王彬[1] 陈薪羽[1] 金光勇[1] Zhang Jian Yu Yongji Jiang Chengyao Wang Zijian Wang Bin Chen Xinyu Jin Guangyong(Jilin Key Laboratory of Solid Laser Technology and Apply, School of Science, Changchun University of Science and Technology, Changchun 130022, China No.ll High School of Changchun, Changchun 130000, China)

机构地区：[1]长春理工大学理学院吉林省固体激光技术与应用重点实验室,吉林长春130022 [2]长春市第十一高中,吉林长春130000

出　　处：《红外与激光工程》2017年第2期100-104,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金(61240004)

摘　　要：报道了相同实验条件下激光二极管端面抽运生长型复合Nd:YVO4晶体声光调Q和RTP电光调Q激光器。应用声光调Q和RTP电光调Q分别实现了最高重复频率200 k Hz和500 k Hz的TEM00模1 064 nm激光输出,输出平均功率分别达到12.13 W和13.56 W,脉冲宽度分别为16.65 ns和27.27 ns,并首次对比了两种调Q体制下的高重频激光输出特性。实验结果表明,RTP电光调Q具有更好的高重频关断能力,但由于受到高压驱动的限制,RTP电光调Q无法在更高重复频率下实现窄脉宽高峰值功率激光输出,而在更高重频下仍有较好输出性能的声光调Q将取代电光调Q成为几百千甚至上兆Hz高重频激光器的首选调Q机制。A laser diode （LD） end-pumped adhesive-free bond composite Nd：YVO4 Acousto Optical（AO） Q-switched and RTP Electro Optical （EO） Q-switched laser were reported at the same experimental condition. TEM00 operation of 1 064 nm laser were obtained at repetition rate of 500 kHz in AO Q- switched regime and 200 kHz in EO Q-switched regime. And it was the first time to compare the output performance of AO Q-switched operation and RTP EO Q-switched operation at high repetition rate. In EO Q-switched regime, the average output power reached to 12.13 W with the pulse-width of 16.65 ns. In AO Q-switched regime, the average output power reached to 13.56 W with the pulse-width of 27.27 ns. The experimental results show that RTP EO Q-switched operation has better performance of turn-off. However, due to limitation of high voltage driver, EO Q-switched is not able to achieve with shorter pulse width and higher peak power laser under higher repetition rate operation. The AO Q- switched operation that has better output characteristic at higher repetition rate, and it would be the preferred method to obtain Q-switched laser which the repetition rate is high as thousands of hundreds and even mega.

关 键 词：激光器 高重频 声光调Q RTP电光调Q 生长型复合Nd：YVO4晶体 

分 类 号：O436[机械工程—光学工程]