亚纳秒脉宽半导体泵浦电光调Q Nd:YVO_4激光器  

Subnanosecond pulse generation from diode-pumped electro-optically Q-switched Nd:YVO_4 laser

作　　者：孙哲[1] 李强[1] 姜梦华[1] 雷訇[1] 惠勇凌[1] 

机构地区：[1]北京工业大学激光工程研究院,北京100124

出　　处：《光电子．激光》2012年第11期2074-2078,共5页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(61040065);北京市自然科学基金(4112005)资助项目

摘　　要：报道了一种利用半导体端面泵浦Nd:YVO4晶体并采用电光调Q的短腔激光器。通过理论分析和实验研究,确定了激光器的结构和参数,并证明使用电光调Q技术可以实现亚纳秒脉宽激光输出。在腔长20mm、重复频率为1～100Hz的范围内,获得脉宽小于600ps、单脉冲能量大于0.42mJ以及光束质量M2为1.9的100Hz激光输出,不稳定度小于±3%。A compact fiber-coupled diode-pumped electro-optically Q-switched Nd.. WWO4 laser is repor- ted. Through theoretical analysis and experimental research, we determine the Nd：YVO4 laser structure and its parameters. Both theoretical analysis and experiment data demonstrate that subnanosecond pulses can be produced with electro-optically Q-switched technique. The cavity length is effectively reduced to 20 mm to narrow the pulse width. Stable pulses are obtained at 1-100 Hz, the pulse width is narrower than 600 ps and the single pulse energy is more than 0.42 rnJ,Mz is 1.7 and the stability is ±3%.

关 键 词：亚纳秒 窄脉宽 ND:YVO4激光器 电光调Q 半导体泵浦 

分 类 号：TN248.1[电子电信—物理电子学]