Modeling of laser-diode side-pumped continuous wave Nd:YAG/KTP green laser

作者：Cheng Wenyong^*; Zhao Shengzhi; Zhuo Zhuang; Zhang Xiaomin; Wang Yun

来源：Optics and Lasers in Engineering, 2009, 47(1): 169-172.

DOI：10.1016/j.optlaseng.2008.06.014

• Laser-diode side-pumped
• Continuous wave
• Intracavity-frequency-doubling

By reasonably assuming the distribution of the pump light in laser medium, the equations about the absorption and the gain for the end-pumped lasers are applied to the side-pumped ones, and a theoretical model for laser-diode side-pumped continuous wave intracavity-frequency-doubling lasers is given, in which the thermally induced diffraction loss and the variation of the fundamental wave radii with the pump power are considered. By using a Z-type cavity, a laser-diode side-pumped continuous wave Nd:YAG/KTP green laser is realized, The threshold pump power is 15 W, and the highest output power of the green laser is 3.75 W at the pump power of 160 W, corresponding to an optical-optical slope efficiency 2.6%. The experimental results are consistent with the numerical Solutions.

• 出版日期2009-1
• 单位山东警察学院; 中国工程物理研究院; 山东大学; 中国工程物理研究院激光聚变研究中心