LD端面泵浦声光调Q Nd:YVO<sub>4</sub>/KTA 1.53 μm光学参量振荡激光器

陈慧彬; 朱海永; 张戈; 黄呈辉; 郑益群; 魏勇; 段延敏; 王鸿雁; 邱港

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LD端面泵浦声光调Q Nd:YVO₄/KTA 1.53 μm光学参量振荡激光器

1.
中国科学院福建物质结构研究所, 福州 350002;
2.
福建师范大学物理与光电信息科技学院, 福州 350007;
3.
青岛海泰光电技术有限公司, 山东青岛 2661 00

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出版历程
- 刊出日期: 2010-02-15

LD end-pumped Q-switched Nd:YVO4/KTA optical parametric oscillator laser at 1.53 μm

1.
Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;
2.
School of Physics and Opto-Electronics Technology,Fujian Normal University,Fuzhou 350007,China;
3.
Crystech Inc,Qingdao 266100,China

摘要

摘要: 介绍了一台连续激光二极管（LD）端面泵浦声光调Q的高重复频率、高效率1.53 μm人眼安全光学参量振荡激光器。激光基质材料采用Nd:YVO4晶体，采用按Ⅱ类非临界相位匹配切割、长20 mm的KTA晶体作为非线性光学晶体。在LD泵浦功率13.7 W，声光调Q重复频率60 kHz时，获得最高平均功率2.6 W的1.53 μm信号光输出，泵浦光-信号光转换效率达到19%。在最高输出功率2.6 W下测得单脉冲宽度2.9 ns，对应的单脉冲能量和峰值功率分别为43.3 μJ和15 kW。
- 光学参量振荡器 /
- Nd:YVO4 /
- 砷酸钛氯钾晶体 /
- 声光调Q /
- 人眼安全
Abstract: A highly efficient high-repetition-rate CW laser diode end-pumped acousto-optically (AO) Q-switched eye-safe intracavity optical parametric oscillator at 1.53 μm was experimentally investigated. The 20 mm long KTA crystal cut for typeⅡ noncritical phase matching was adopted as the nonlinear crystal parametric converter in this experiment. We have achieved the signal average power of 2.6 W under the LD pumping power of 13.7 W and the pulse repetition rate of 60 kHz, corresponding to an optical-to-optical conversion efficiency of 19%. At the highest output power of 2.6 W, the signal pulse duration of 2.9 ns was obtained, corresponding to the single pulse energy of 43.3 μJ and peak power of 15 kW, respectively.
- optical parametric oscillator /
- nd:yvo4 /
- kta crystal /
- acousto-optically q-switched /
- eye-safe