Yu Haohai, Zhang Huaijin, Wang Zhengping, Wang Jiyang, Yu Yonggui, Shi Zibin, Zhang Xingyu, Jiang Minhua
State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China.
Opt Express. 2009 Oct 12;17(21):19015-20. doi: 10.1364/OE.17.019015.
We demonstrated efficient high-power continuous-wave (cw) and passively Q-switched disordered Nd:CLNGG laser performance. In cw operations, the output power was obtained to be 3.81 W with a slope efficiency of 30.3%. To our knowledge, they are the highest cw power and efficiency with Nd:CLNGG as the gain medium and a laser-diode (LD) as the pump source. Recorded with a spectrum analyzer, no splitting was found in the Nd:CLNGG laser, which is different with that of its isomorph Nd:CNGG. The LD pumped passively Q-switched Nd:CLNGG laser was obtained for the first time to our knowledge. The shortest pulse width, largest pulse energy and highest peak power were achieved to be 12.3 ns, 199.1 microJ and 16 kW, respectively, with Cr(4+):YAG crystals as the saturable absorbers.
我们展示了高效的高功率连续波（cw）和被动调Q无序Nd:CLNGG激光性能。在连续波运行中，获得的输出功率为3.81 W，斜率效率为30.3%。据我们所知，以Nd:CLNGG作为增益介质、激光二极管（LD）作为泵浦源时，这些是最高的连续波功率和效率。用光谱分析仪记录发现，Nd:CLNGG激光器中没有出现分裂，这与其同构体Nd:CNGG不同。据我们所知，首次实现了LD泵浦的被动调Q Nd:CLNGG激光器。以Cr(4+):YAG晶体作为饱和吸收体时，分别实现了最短脉冲宽度12.3 ns、最大脉冲能量199.1 μJ和最高峰值功率16 kW。
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