光学学报, 2007, 27 (10): 1827, 网络出版: 2007-10-24   

板条激光放大器中寄生振荡的研究

Research on Parasitic Oscillation in Slab Amplifiers
作者单位
中国科学院上海光学精密机械研究所, 上海 201800
摘要
寄生振荡的存在使得放大器在信号光到达之前消耗了大量的反转粒子数,降低了放大器的激光增益和储能效率,严重地影响了激光放大器的性能,尤其对高功率激光放大器。在理论分析和实验研究的基础上,以Nd∶YAG晶体板条为例,用8条半导体激光阵列对晶体进行双侧抽运,研究了高功率激光放大器的寄生振荡现象,分析了板条晶体寄生振荡产生的原因,并详细比较了晶体在不同的抽运功率和表面处理下的放大效果,得到了2倍的单程放大,当输入能量为140 mJ时,获得了278 mJ的激光输出。
Abstract
Existence of parasitic oscillation makes the amplifier consume lots of inversed population before the arrival of signal pulse, which reduces peak gain and storage efficiency and influence amplification performance greatly, especially for high-power amplifiers. By pumping Nd∶YAG slab with 8 laser diode arrays, parasitic oscillation in high-power amplifier was studied both theoretically and experimentally. The parasitic oscillations in the slab with different surfaces treatment were compared. When the pump energy was 1.28 J and the input pulse energy was 140 mJ, the single-pass amplification of β=2 and the output pulse energy of 278 mJ was obtained.
参考文献

[1] W. Koechner. Solid-State Laser Engineering[M]. Berlin: Springer-Verlag, 1996. 150~194

[2] Wang Chunyu, Lu Yutian, Zhu Xiaolei. Effect of amplified spontaneous emission on performance of all solid state laser[J]. Chin. J. Lasers, 2006, 33(4): 433~437 (in Chinese)
王春雨,陆雨田,朱小磊. 放大器自发辐射对全固态激光器调Q性能的影响[J]. 中国激光, 2006, 33(4): 433~437

[3] Zheng Yuxia, Zhu Jian, Qian Liejia et al.. Investigation of parasitic oscillation in main amplifier of the facility “SHENGGUANG-Ⅱ”[J]. Acta Optica Sinica, 1996, 16(10): 1367~1370
郑玉霞,朱俭, 钱列加 等.“神光-Ⅱ”实验装置主放大器中寄生振荡的研究[J]. 光学学报, 1996, 16(10): 1367~1370

[4] He Shaobo, Yu Haiwu, Zheng Wanguo et al.. Research of amplified spontaneous emission in high power slab laser amplifier[J]. High Power Laser and Particle Beams, 2004, 16(5): 603~606 (in Chinese)
贺少勃,於海武, 郑万国 等. 高功率激光片状放大器中自发辐射放大研究[J]. 强激光与粒子束, 2004, 16(5): 603~606

[5] J. B. Trenholme. Fluorescence amplification and parasitic oscillation limitations in disk lasers[R]. Memorandum Rep., 2480, Naval Research Lab, Washington DC, July 1972

[6] . A. Glaze, S. Guch, J. B. Trenholme. Parasitic suppression in large aperture Nd∶glass disk laser amplifiers[J]. Appl. Opt., 1974, 13(12): 2808-2811.

[7] . Brown. Parasitic oscillations in large aperture Nd3+∶glass amplifiers revisited[J]. Appl. Opt., 1973, 12(10): 2215-2217.

[8] David Benfey, David brown, Joseph Chernoch. Amplified spontaneous emission in high power slab lasers[J]. Adv. Solid-State Lasers, Salt Lake City, UT(1990): paper We1-1

[9] . Linford, Lowell W. Hill. Nd∶YAG long lasers[J]. Appl. Opt., 1974, 13(6): 1387-1394.

[10] . P. Kostometov, N. N. Rozanov. Amplified spontaneous radiation emitted from disk laser amplifiers[J]. Sov. J. Quant. Electron., 1976, 6(6): 696-699.

[11] Shally Saraf, Supriyo Sinha, Arun Kumar Sridharan et al.. Status of high power laser development at Stanford[C]. LSC2003, Hannover, Germany, 2003

[12] Cheng Xiaojin, Niu Jinfu, Xu Jianqiu. Thermal effects in partially laser-diode pumped slab lasers[J]. Acta Optica Sinica, 2006, 26(6): 854~858 (in Chinese)
程小劲,牛金富,徐剑秋. 部分抽运的板条激光器的热效应分析[J]. 光学学报, 2006, 26(6): 854~858

程小劲, 徐剑秋. 板条激光放大器中寄生振荡的研究[J]. 光学学报, 2007, 27(10): 1827. 程小劲, 徐剑秋. Research on Parasitic Oscillation in Slab Amplifiers[J]. Acta Optica Sinica, 2007, 27(10): 1827.

本文已被 4 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

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!