Generation of 1.2 W green light using a resonant cavity-enhanced second-harmonic process with a periodically poled KTiOPO4
Generation of 1.2 W green light using a resonant cavity-enhanced second-harmonic process with a periodically poled KTiOPO4
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DOI：
10.1016/j.optcom.2012.11.097
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发表时间：
2013-05
影响因子：
2.4
通讯作者：
Yun Zhang;N. Hayashi;H. Matsumori;Ryohei Mitazaki;Yinghong Xue;Y. Okada-Shudo;M. Watanabe;K. Kasai
中科院分区：
文献类型：
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作者：
Yun Zhang;N. Hayashi;H. Matsumori;Ryohei Mitazaki;Yinghong Xue;Y. Okada-Shudo;M. Watanabe;K. Kasai
报道了在单谐振环增强腔中用周期极化KTiOPO_4晶体（PPKTP）实现1064 nm单频连续Nd：YAG激光器倍频的实验结果。最大输出功率为1.23W，在基波功率为1.7W时，转换效率为72%。据我们所知，这是在外部增强腔中使用PPKTP晶体在该波长下获得的最高功率。由于增强腔的优化设计，输出功率连续稳定，超过4小时的峰峰值波动小于1%;此外，设置本身就简单而坚固。因此，它适合作为量子光学实验的光源。
We report on frequency doubling of a single frequency cw Nd:YAG laser at wavelength of 1064nm using a periodically poled KTiOPO4crystal (PPKTP) placed in a single resonant ring enhanced cavity. A maximum output power of 1.23W, corresponding to 72% of conversion efficiency with 1.7W of fundamental power, was achieved. This is, to the best of our knowledge, the highest power obtained at this wavelength with PPKTP crystal in an external enhanced cavity. The output power is continuously stable with a peak to peak fluctuation of less than 1% over 4h owing to optimum design of an enhanced cavity; moreover, the setup is inherently simple and robust. Therefore, it is suitable to be a light source for quantum optics experiments.