强激光与粒子束, 2014, 26 (10): 101025, 网络出版: 2014-12-08  

稳定高质量光参量啁啾脉冲放大系统优化设计

Optimization design of stable and high quality optical parametric chirped pulse amplification system
作者单位
中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900
摘要
要实现光参量啁啾脉冲放大(OPCPA)系统稳定、高质量输出,需要同时对光参量放大和泵浦光倍频这两个非线性过程进行优化设计。在光参量放大系统优化设计中,建立了描述光参量放大过程的多种简化物理模型;通过模拟泵浦光和信号光口径匹配关系,分析了放大信号光空间两维对称性并提出了优化方法;建立了非线性晶体最佳长度确定及调谐方法,以实现信号光输出高稳定性。在泵浦光倍频系统优化设计过程中,提出应用位相失配法实现稳定倍频输出,研究表明这种方法不仅能实现倍频光能量起伏抖动远远小于基频光能量的起伏抖动,而且能减小泵浦光近场调制度和时间波形调制,极大地改善输出倍频光光束质量,进而提高OPCPA系统输出信号光质量。
Abstract
This paper proposes that in order to realize high-quality and stable output from an optical parametric chirped pulse amplification(OPCPA) system, the two nonlinear courses included in an OPCPA system must be optimized at the same time. These two nonlinear courses are the optical parametric amplifying (OPA) course and the second harmonic generation(SHG) course of the pump. In order to optimize the parametric amplifier, several kinds of physical models are set up and they will be used to solve different kinds of problems. The analyzing method is set up to get symmetrical output signal in x and y from an optical parametric amplifier. The method of making certain the length of the nonlinear crystal is also set up to get the most stable OPA output. In the study of the second harmonic generation course, mismatched SHG is put forward to get stable second harmonic pump. The study shows that mismatched SHG can not only improve the stability of the pump, but also decrease the modulation in near field and pulse waveform, thus improve the beam quality of the pump.
参考文献

[1] 曾曙光,张彬,孙年春,等. 啁啾OPCPA方案用于消除超短激光的预脉冲[J].强激光与粒子束, 2012, 24(2):394-398. (Zeng Shuguang, Zhang Bin, Sun Nianchun, et al. Chirp-matching OPCPA scheme for eliminating pre-pulse of ultrashort laser pulse. High Power Laser and Particle Beams, 2012, 24(2): 394-398)

[2] 王红英. 光参量荧光寿命分布[J].强激光与粒子束, 2011, 23 (9):2329-2334.(Wang Hongying. Optical parametric fluorescence lifetime distribution. High Power Laser and Particle Beams, 2011, 23 (9):2329 -2334)

[3] Ross I N, Matousek P, Towrie M, et al. The prospect for ultrashort pulse duration and ultrahigh intensity using optical parametric chirped pulse amplification[J].Opt Comm, 1997, 144:125-133.

[4] Piskarskas A, Stabinis A, Yankauskas A. Highly efficient parametric generation during pumping with high-power sub-nanosecond pulses[J].Sov Phys Usp,1986, 12:78-79.

[5] Ross I N, Collier J L, Matousek P, et al. Generation of terawatt pulses by use of optical parametric chirped pulse amplification[J].Applied Optics, 2000, 39(15): 2422-2427.

[6] 邓青华,丁磊,贺少勃,等. 光参量啁啾脉冲放大系统非线性晶体长度确定及调谐方法研究[J].物理学报, 2010, 59(4):2525-2531. (Deng Qinghua, Ding Lei, He Shaobo, et al. Methods for determining and detuning the length of nonlinear crystal in optical pulse chirped amplifier. Acta Physica Sinica, 2010, 59(4): 2525-2531.

[7] Jovanovic I, Comaskey B J, Christopher A E, et al. Optical parametric chirped-pulse amplifier as an alternative to Ti:sapphire regenerative amplifiers[J].Applied Optics, 2002, 41(15): 2923-2929.

[8] 张克从,王希敏. 非线性光学晶体材料科学[M].北京:科学出版社,2005. (Zhang Kecong, Wang Ximin. Science of nonlinear optics crystal materials. Beijing :Science Press,2005)

[9] Zhang S K, Fujita M, Yamanaka M. Study of the stability of optical parametric amplification[J].Opt Comm, 2000, 184: 451-455.

[10] Ross I N, Matousek P, Geoffrey H C, et al. Analysis and optimization of optical parametric chirped pulse amplification[J].J Opt Soc Am B, 2002, 19(12): 2945-2956.

[11] Guardalben M J, Keegan J, Waxer L J, et al. Design of a highly stable, high-conversion-efficiency, optical parametric chirped-pulse amplification system with good beam quality[J].Optics Express, 2003, 11(20):2511-2524.

[12] 朱鹏飞, 钱列加, 林尊琪. 啁啾脉冲参量放大特性的数值模拟研究[J]. 强激光与粒子束, 2001, 13(4): 408-412.(Zhu Pengfei, Qian Liejia, Lin Zunqi, et al. Numerical simulation on chirped pulse optical parametric amplification. High Power Laser and Particle Beams, 2001, 13(4): 408-412)

[13] 刘红军, 陈国夫, 赵卫, 等. 高质量高效率高稳定性参量放大光产生的研究[J]. 物理学报, 2004, 53(1): 105-113. (Liu Hongjun, Chen Guofu, Zhao Wei, et al. The generation of high efficiency and high quality and high stability parametric amplified light. Acta Physica Sinica, 2004, 53(1): 105-113)

[14] 邓青华,彭翰生,李明中,等. 相位失配法实现倍频稳定输出的模拟分析[J].强激光与粒子束,2007,19(3):394-397.(Deng Qinghua, Peng Hansheng, Li Mingzhong, et al. Numerical simulation of stable second harmonic generation using phase mismatching. High Power Laser and Particle Beams, 2007, 19(3): 394-397)

邓青华, 谢旭东, 唐军, 高松, 陈远斌, 陈林, 刘建国, 王正辉, 卢振华, 刘勇, 丁磊. 稳定高质量光参量啁啾脉冲放大系统优化设计[J]. 强激光与粒子束, 2014, 26(10): 101025. Deng Qinghua, Xie Xudong, Tang Jun, Gao Song, Chen Yuanbin, Chen Lin, Liu Jianguo, Wang Zhenghui, Lu Zhenhua, Liu Yong, Ding Lei. Optimization design of stable and high quality optical parametric chirped pulse amplification system[J]. High Power Laser and Particle Beams, 2014, 26(10): 101025.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!