强激光与粒子束, 2015, 27 (3): 032018, 网络出版: 2015-03-23
兼容多波长及多脉宽输出的频率转换系统设计
Design of compatible harmonic generation system for multi wavelength and multiple pulse-width laser output
多波长 多脉宽 正交级联二倍频 偏振失配三倍频 multiple wavelengths multiple pulse-widths orthogonal quadrate doubling polarization mismatch tripling
摘要
通过对多种频率转换方案的深入对比分析, 设计了一套兼容多波长及多脉宽高效输出的频率转换系统。采用“Ⅱ+Ⅱ”类双晶体级联的方式, 可以实现“偏振失配”三倍频和Ⅱ类双晶体正交级联二倍频两种模式间的快速切换。通过数值模拟程序优化了晶体构型, 结果表明, 当两块晶体厚度均为10 mm时, 可以兼顾低功率长脉冲和高功率短脉冲对效率和稳定性的需求。
Abstract
By comparing and analyzing various frequency conversion schemes, a compatible harmonic generation system has been designed. With type-Ⅱ-type-Ⅱ crystal combination configuration, polarization mismatch third harmonic generation and type-Ⅱ orthogonal quadrate second harmonic generation can be quickly switched. The thicknesses were optimized to be 10 mm for both crystals by numerical simulation method, as a result, the requirements of high efficiency for long pulse with low intensity, as well as high stability for short pulse with high intensity, can be satisfied.
王芳, 李富全, 贾怀庭, 周丽丹, 王礼权, 冯斌, 谢旭东, 朱启华, 张崑. 兼容多波长及多脉宽输出的频率转换系统设计[J]. 强激光与粒子束, 2015, 27(3): 032018. Wang Fang, Li Fuquan, Jia Huaiting, Zhou Lidan, Wang Liquan, Feng Bin, Xie Xudong, Zhu Qihua, Zhang Kun. Design of compatible harmonic generation system for multi wavelength and multiple pulse-width laser output[J]. High Power Laser and Particle Beams, 2015, 27(3): 032018.
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