可调谐单纵模绿光Nd:YAG激光器

设计了半导体激光器双端面抽运的种子注入Nd:YAG 绿光激光器。通过优化谐振腔结构参数设计，实现增益介质激活区域与基横模体积的良好匹配，获得稳定的基横模输出。48 h连续运转，输出的脉冲能量不稳定度小于2.9%，并确保单频输出。在传导冷却结构中，实现了高光束质量、高重复频率、窄脉冲宽度且可调谐的532 nm单频绿光的稳定输出。在重复频率为1 kHz时，最大输出脉冲能量大于4 mJ，脉冲宽度约为6.5 ns。激光束在水平方向和垂直方向的光束质量M2值分别是1.166和1.158。输出单频绿光激光的连续调谐范围可达到15 GHz。

Abstract

A laser diode dual-end pumped injection-seeded Nd:YAG green laser is designed. By the reasonable design of the cavity structure parameters, the fundamental transverse mode laser is obtained because of the good match between the gain medium activation area and the fundamental transverse mode volume. In 48 hours of continuous work, the output laser which keeps good single frequency and energy fluctuation is less than 2.9%. In conductively cooled structure, the high beam quality, high repetition frequency, narrow pulse width and tunable 532 nm single-frequency green laser is implemented. The repetition frequency of the laser is 1kHz. The output energy is more than 4 mJ, and the pulse width is around 6.5 ns. The beam quality M2 of 1.166 in the horizontal direction and 1.158 in the vertical direction is detected. The output green laser with continuous tuning range of 15 GHz is achieved.

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张俊旋, 李峰, 毕德仓, 朱小磊. 可调谐单纵模绿光Nd:YAG激光器[J]. 中国激光, 2013, 40(9): 0902009. Zhang Junxuan, Li Feng, Bi Decang, Zhu Xiaolei. Tunable Single Longitudinal Mode Nd:YAG Green Laser[J]. Chinese Journal of Lasers, 2013, 40(9): 0902009.

可调谐单纵模绿光Nd:YAG激光器

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