Bo Yong, Geng Aicong, Bi Yong, Sun Zhipei, Yang Xiaodong, Peng Qinjun, Li Huiqing, Li Ruining, Cui Dafu, Xu Zuyan
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, China.
Appl Opt. 2006 Apr 10;45(11):2499-503. doi: 10.1364/ao.45.002499.
We have obtained green-beam quality of M2 = 6.2 at an average output power of 120 W by intracavity frequency doubling of a diode-side-pumped, Q-switched Nd:YAG rod laser with a repetition rate of 10 kHz and an optical-to-optical conversion efficiency of 15.2%. To achieve high-beam quality at high average power, the laser employs a thermally near-unstable resonator design with two-rod birefringence compensation in an L-shaped flat-flat cavity. The output power fluctuation of the green laser remains less than 0.9% in 4 h.
我们通过对二极管侧面泵浦、调Q的Nd:YAG棒状激光器进行腔内倍频，在重复频率为10 kHz、光光转换效率为15.2%、平均输出功率为120 W的情况下，获得了M² = 6.2的绿光束质量。为了在高平均功率下实现高光束质量，该激光器采用了热近非稳腔设计，在L型平平腔中采用双棒双折射补偿。绿色激光器的输出功率在4小时内的波动保持在0.9%以内。
