全固体1.3μm增益开关激光器的研究

J4 ›› 2012, Vol. 29 ›› Issue (3): 292-297.

全固体1.3μm增益开关激光器的研究

薛竣文,裴雪丹,苏秉华,赵慧元,孙鲁

北京理工大学珠海学院，广东珠海 519085

收稿日期:2011-11-15 修回日期:2011-11-24 出版日期:2012-05-28 发布日期:2012-05-22
通讯作者: 薛竣文（1978-），吉林人，讲师，博士，从事新型激光器及其应用方面的研究。 E-mail:xuejunwen001@126.com
基金资助:
北京理工大学珠海学院青年教师科研发展基金（ky-2010-0016）资助项目

Study of all-solid-state 1.3μm gain-switched laser

XUE Jun-wen, PEI Xue-dan, SU Bing-hua, ZHAO Hui-yuan, SUN Lu

Zhuhai College, Beijing Institute of Technology, Zhuhai 519085， China

Received:2011-11-15 Revised:2011-11-24 Published:2012-05-28 Online:2012-05-22

摘要/Abstract

摘要：

增益开关和Q开关是获得脉冲激光运转的常用方法，对于在非线性光学研究、光通讯第二窗口装置检测、光纤传感等方面有着广泛应用前景的1.3μm波段全固体激光的脉冲产生，提出了使用增益开关的方法。首先在理论上使用速率方程对增益开关的运转进行分析，并就腔长对脉冲参数的影响进行了数值模拟。接着在实验上采用高频调制激光二极管供电电源的方法，使Nd:YVO4激光器工作在增益开关状态，即通过逐渐减小工作电源泵浦电流的脉冲宽度，使激光仅输出弛豫振荡的第一个脉冲，最后在泵浦电流脉冲宽度为5μs时，获得了平均功率80mW，光脉冲宽度200ns，频率200kHz，峰值功率2W，单脉冲能量0.4μJ的1.342μm激光的增益开关运转。

关键词: 激光技术, 增益开关, 速率方程, 脉冲激光器, 全固体激光器

Abstract:

Gain-switching and Q-switching are usual methods to obtain pulsed laser operation. For 1.3μm wave band pulsed laser which is widely used in nonlinear optics, detection device used for optics communication second window and fiber sensor etc, gain-switching method is put forward to obtain the pulsed operation. Firstly, rate equation for the gain-switching is used to analyze the operation of the laser. And the numeric simulation shows the influence of the cavity length to the pulse parameters. Secondly, the driver of the LD is modulated to pump Nd:YVO4 force the laser to work in the state of gain-switching. By decreasing the pulse width of the pumping current, the first pulse of the relaxation is picked up. The 1.342μm pulse with average power of 80mW, pulse width of 200ns, frequency of 200kHz, peak power of 2W and pulse energy of 0.4μJ is obtained at last.

Key words: laser techniques, gain-switching, rate equation, pulsed laser, all-solid-state laser

中图分类号:

TN248.1

薛竣文裴雪丹苏秉华赵慧元孙鲁. 全固体1.3μm增益开关激光器的研究[J]. J4, 2012, 29(3): 292-297.

XUE Jun-wen, PEI Xue-dan, SU Bing-hua, ZHAO Hui-yuan, SUN Lu. Study of all-solid-state 1.3μm gain-switched laser[J]. J4, 2012, 29(3): 292-297.

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