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LD侧面泵浦电光调Q532nm脉冲激光器
引用本文:沈兆国,白杨,宋东璠,白晋涛. LD侧面泵浦电光调Q532nm脉冲激光器[J]. 应用光学, 2009, 30(6): 1036-1039
作者姓名:沈兆国  白杨  宋东璠  白晋涛
作者单位:1.西北大学光子所,陕西西安710069;
2.西北大学陕西省全固态激光技术与应用研究工程中心,陕西西安710069
基金项目:西北大学研究生科研实验资助 
摘    要: 为了实现高可靠、窄脉宽、高峰值功率激光输出,采用侧面泵浦技术和电光调Q技术,设计出一种激光二极管侧面泵浦电光调Q全固态绿光激光器。采用结构简单、紧凑的平-平腔设计,其端镜和输出镜均为平面镜,获得较稳定的侧面泵浦Nd∶YAG腔外倍频KTP脉冲绿光激光输出。当泵浦电流为120A,重复频率为600Hz时,获得脉冲绿光的最高输出平均功率为3.62W,1064nm到532nm的转换效率为15.3%,其脉宽为21ns,峰值功率为300kW, 单脉冲能量为6.01mJ。实验结果表明:该激光器稳定性可靠,输出激光脉宽较窄、峰值功率高。

关 键 词:LD侧面泵浦  调Q开关  倍频脉冲激光器
收稿时间:2009-04-27

LD side-pumped electrooptical Q-switched pulse laser at 532 nm
SHEN Zhao-guo,BAI Yang,SONG Dong-fan,BAI Jin-tao. LD side-pumped electrooptical Q-switched pulse laser at 532 nm[J]. Journal of Applied Optics, 2009, 30(6): 1036-1039
Authors:SHEN Zhao-guo  BAI Yang  SONG Dong-fan  BAI Jin-tao
Affiliation:1. Institute of photonics &; Photonic-Technology, Northwestern University, Xi’an 710069, China;
2. Shaanxi All-solid-state Laser Technology and Applied Research Center,Northwestern University, Xi’an 710069, China
Abstract:In order to achieve high reliability, narrow pulse width and high peak power laser output, an all-solid-state electrooptical Q-switched green laser with diode side pump was designed with the side-pumped and electrooptical Q-switched technology. The stable laser output of LD side-pumped Nd: YAG pulse green laser with extra-cavity frequency-doubled KTP was achieved by the simple and compact flat-flat cavity design. When the pump current is 120A and repetition rate is 600Hz, the highest pulse green output average power of 3.62W, the conversion efficiency (from 1064 nm to 532 nm) of 15.3%, the pulse width of 21ns, peak power of 300 kW, and single pulse energy of 6.01mJ were achieved. Experimental results show that the stability of laser output is high, pulse width is relatively narrow, and peak power is high.
Keywords:LD side-pumped laser  Q-switch  frequency-doubled pulse laser
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