全固态SESAM锁模激光器的锁模特性研究

对全固态SESAM锁模激光器的锁模特性进行了理论研究。基于抑制调Q锁模理论模型和结合全固态LD抽运的Yb:YAG激光器等,数值模拟分析了在不同调制深度、非饱和损耗、饱和通量和输出镜透射比等参数下的SESAM的反射率,以及抑制调Q锁模所需要的临界抽运功率。以同样的脉冲通量入射到SESAM上,SESAM的调制深度、非饱和损耗和饱和通量与它的反射率都呈一个反比关系。调制深度、饱和通量、输出镜透射比、激光光腰和腔长的减小都会降低临界抽运功率,使其更容易抑制调Q锁模。在晶体长度为1.9 mm时,可获得最小临界抽运功率。

Abstract

Theoretical research on the mode locking characteristics of mode-locked all-solid-state laser with semiconductor saturable absorber mirror has been carried out. According to theoretical model of suppressing Q-switched mode locking and combining with LD-pumped all-solid-state Yb:YAG laser,the reflectivity of SESAM and the critical pump power of suppressing Q-switched mode locking have been studied by numerical simulated calculations under the conditions of different modulation depths,non-saturable losses,saturation fluences,transmittance of the output mirror and other parameters. When the incident pulse fluences on the SESAM are the same,modulation depth,non-saturable loss and saturation fluence have inverse relations with SESAM reflectivity. With the decrease of modulation depth,saturation fluence,transmittance of the output mirror,beam waist and cavity length,the critical pump power also decreases,and suppressing Q-switched mode locking becomes easier. When the crystal length is 1.9 mm,the minimum critical pump power can be obtained.

参考文献

[1] . Keller,W. H. Knox,H. Roskos. Coupled-cavity resonant passive mode-locked Ti:sapphire laser[J]. Opt. Lett., 1990, 15(23): 1377-1379.

[2] 姚建铨,徐德刚. 全固态激光及非线性光学频率变换技术[M]. 北京:科学出版社,2007:457

Yao Jianquan,Xu Degang. All Solid State Laser and Nonlinear Optical Frequency Conversion Technology [M]. Beijing:Science Press,2007:457

[3] 陈檬,张丙元,李港等. 半导体可饱和吸收镜被动锁模Nd:YAG激光器的研究[J]. 中国激光,2004,31(6):646-648

Chen Meng,Zhang Bingyuan,Li Gang et al.. Study on SESAM passively-mode-locked Nd:YAG laser [J]. Chinese J. Lasers,2004,31(6):646-648

[4] . Hnninger,R. Paschotta,F. Morier-Genoud et al.. Q-switching stability limits of continuous-wave passive mode locking[J]. J. Opt. Soc. Am. B, 1999, 16(1): 46-56.

[5] 蔡志强. LD抽运的SESAM被动连续锁模激光器实验研究[D]. 天津:天津大学,2005:13-16

Cai Zhiqiang. Experimental research on LD pumped passively continuous-wave mode-locked lasers with SESAM [D]. Tianjin:Tianjin University,2005:13-16

[6] 于海娟. LD直接抽运 Yb:YAG 超短脉冲激光技术的研究[D]. 北京:北京工业大学,2005:34

Yu Haijuan. Researchs on diode pumped Yb:YAG ultrashort lasers [D]. Beijing:Beijing University of Technology,2005:34

[7] S. W. Tsai,Y. P. Lan,S. C. Wang et al.. High-power diode-end-pumped passively mode-locked Nd:YVO4 laser with a relaxed saturable Bragg reflector [C]. SPIE,2002,4630:17-23

[8] . X. Krtner,L. R. Brovelli,D. Kopf,M. Kamp et al.. Control of solid-state laser dynamics by semiconductor devices[J]. Opt.Engng., 1995, 34(7): 2024-2036.

[9] 宋钥,王丽. LD抽运Yb:YAG全固态激光器输出功率特性分析[J]. 激光与红外,2006,36(8):644-647

Song Yue,Wang Li. Analysis of output power property on all-solid-state laser of LD-Yb:YAG [J]. Laser & Infrared,2006,36(8):644-647

[10] 蔡志强,温午麒,姚建铨等.半导体可饱和吸收镜连续被动锁模端面抽运 Nd:YVO4激光器[J]. 中国激光,2005,32(6):734-738

Cai Zhiqiang,Wen Wuqi,Yao Jianquan et al.. Continuous- wave passively mode-locked diode end-pumped Nd:YVO4 Laser with a semiconductor saturable absorber mirror [J]. Chinese J. Lasers,2005,32(6):734-738

班文政, 王丽, 范锋, 李光, 门艳彬, 张新平. 全固态SESAM锁模激光器的锁模特性研究[J]. 光学学报, 2010, 30(4): 1046. Ban Wenzheng, Wang Li, Fan Feng, Li Guang, Men Yanbin, Zhang Xinping. Research on Mode Locking Characteristics of All-Solid-State Mode-Locked Laser with Semiconductor Saturable Absorber Mirror[J]. Acta Optica Sinica, 2010, 30(4): 1046.

全固态SESAM锁模激光器的锁模特性研究

关于本站 Cookie 的使用提示

全站搜索

全固态SESAM锁模激光器的锁模特性研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索