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本文利用交叉偏振波产生技术(XPW)对800 nm波段钛宝石飞秒激光器输出的激光脉冲进行时域净化, 提高脉冲时域对比度, 并测量验证了1011对比度的脉冲, 达到测量仪器的动态范围极限, 比初始脉冲时域对比度有三个量级的提高, XPW的效率为22%. 同时发现净化后脉冲光谱宽度也得到一定展宽, 进一步利用啁啾镜对和补偿片对净化后的脉冲进行色散补偿, 得到25 fs脉宽的脉冲. 利用该净化后的激光脉冲作为种子注入已有的太瓦级钛宝石啁啾脉冲放大系统中, 在输出脉冲能量250 mJ, 宽度50 fs, 对应峰值功率5 TW的情况下, 在主脉冲前100 ps以外的范围内测量验证了1011的脉冲对比度.Cross polarized wave (XPW) generation technique is used to improve the contrast of the output pulses from a 800 nm Ti: sapphire femtosecond (fs) laser. The measured temporal contrast of the cleaned pulse is 1011 (limited by the dynamic range of the third-order auto-correlator), which is 3 orders of magnitude higher than the temporal contrast ratio of the initial pulse. The efficiency of XPW is 22%. And the bandwidth of the cleaned pulse is broadened after the XPW nonlinear process. Through the dispersion compensation using double chirped mirrors and fused silica plate, the 25 fs pulse duration is achieved. With the cleaned pulse used as the seed of a TW-level Ti: sapphire chirped-pulse amplification laser system, the 250 mJ/50 fs pulses corresponding to 5 TW peak power are obtained. And the 1011 temporal contrast is demonstrated on the time scale of hundreds of picoseconds before the main femtosecond pulse.
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Keywords:
- pulse clean /
- cross-polarized wave generation /
- chirped-pulse amplification /
- pulse contrast
[1] Liang X Y, Leng Y X, Wang C, Li C, Lin L H, Zhao B Z, Jiang Y H, Lu X M, Hu M Y, Zhang C M, Lu H H, Yin D J, Jiang Y L, Lu X Q, Wei H, Zhu J, QLi R X, Xu Z Z 2007 Opt. Express 15 15335
[2] Umstadter D 2001 Phys. Plasmas 8 1774
[3] Ji L L, Shen B F, Li D X, Wang D, Leng Y X, Zhang X M, Wen M, Wang W P, Xu J C, Yu Y H 2010 Phys. Rev. Lett. 105 025001
[4] Xu Y, Leng Y X, Lin L H, Wang W Y, Huang Y S, Li R X, Xu Z Z 2010 Chin. Opt. Lett. 8 123
[5] Hong K H, Hou B, Nees J A, Power E, Mourou G A 2005 Appl. Phys. B 81 447
[6] Liu C, Wang Z H, Li W C, Zhang Q, Han H N, Teng H, Wei Z Y 2010 Opt. Lett. 35 3096
[7] Huang Y S, Zhang C M, Xu Y, Li D X, Leng Y X, Li R X, Xu Z Z 2011 Opt. Lett. 36 781
[8] Jullien A, Albert O, Burgy F, Hamoniaux G, Rousseau J P, Chambaret J P, Augé-Rochereau F, Chériaux G, Etchepare J, Minkovski N, Saltiel S M 2005 Opt. Lett. 30 920
[9] Antonucci L, Rousseau J P, Jullien A, Mercier B, Laude V, Cheriaux G 2009 Opt. Commun. 282 1374
[10] Cotel A, Jullien A, Forget N, Albert O, Cheriaux G, Le Blanc C 2006 Appl. Phys. B 83 7
[11] Chvykov V, Rousseau P, Reed S, Kalinchenko G, Yanovsky V 2006 Opt. Lett. 31 1456
[12] Liu C, Wang Z H, Li W C, Liu F, Wei Z Y 2010 Acta Phys. Sin. 59 7036 (in Chinese) [刘成, 王兆华, 李伟昌, 刘峰, 魏志义 2010 59 7036]
[13] Petrov G I, Albert O, Etchepare J, Saltiel S M 2001 Opt. Lett. 26 355
[14] Minkovski N, Petrov G I, Saltiel S M, Albert O, Etchepare J 2004 J. Opt. Soc. Am. B 21 1659
[15] Wang X T, Yin D J, Shuai B, Li R X, Xu Z Z 2004 Chinese J. Lasers 31 1018 (in Chinese) [王兴涛, 印定军, 帅斌, 李儒新, 徐至展 2004 中国激光 31 1018]
[16] Zhang F L, Ouyang X P, Xie X L, Yang Q W, Guo A L, Sun M Z, Lin Z Q, 2009 Chinese J. Lasers 36 1171 (in Chinese) [张福领, 欧阳小平, 谢兴龙, 杨庆伟, 郭爱林, 孙美智, 林尊琪 2009 中国激光 36 1171]
[17] Chen X W, Li X F, Liu J, Wei P F, Ge X C, Li R X, Xu Z Z 2007 Opt. Lett. 32 2402
[18] Jullien A, Durfee C G, Trisorio A, Canova L, Rousseau J P, Mercier B, Antonucci L, Cheriaux G, Albert O, Lopez-Martens R, 2009 Appl. Phys. B 96 293
[19] Oleg Konoplev 2000 Ph.D. Dissertation (New York: University of Rochester)
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[1] Liang X Y, Leng Y X, Wang C, Li C, Lin L H, Zhao B Z, Jiang Y H, Lu X M, Hu M Y, Zhang C M, Lu H H, Yin D J, Jiang Y L, Lu X Q, Wei H, Zhu J, QLi R X, Xu Z Z 2007 Opt. Express 15 15335
[2] Umstadter D 2001 Phys. Plasmas 8 1774
[3] Ji L L, Shen B F, Li D X, Wang D, Leng Y X, Zhang X M, Wen M, Wang W P, Xu J C, Yu Y H 2010 Phys. Rev. Lett. 105 025001
[4] Xu Y, Leng Y X, Lin L H, Wang W Y, Huang Y S, Li R X, Xu Z Z 2010 Chin. Opt. Lett. 8 123
[5] Hong K H, Hou B, Nees J A, Power E, Mourou G A 2005 Appl. Phys. B 81 447
[6] Liu C, Wang Z H, Li W C, Zhang Q, Han H N, Teng H, Wei Z Y 2010 Opt. Lett. 35 3096
[7] Huang Y S, Zhang C M, Xu Y, Li D X, Leng Y X, Li R X, Xu Z Z 2011 Opt. Lett. 36 781
[8] Jullien A, Albert O, Burgy F, Hamoniaux G, Rousseau J P, Chambaret J P, Augé-Rochereau F, Chériaux G, Etchepare J, Minkovski N, Saltiel S M 2005 Opt. Lett. 30 920
[9] Antonucci L, Rousseau J P, Jullien A, Mercier B, Laude V, Cheriaux G 2009 Opt. Commun. 282 1374
[10] Cotel A, Jullien A, Forget N, Albert O, Cheriaux G, Le Blanc C 2006 Appl. Phys. B 83 7
[11] Chvykov V, Rousseau P, Reed S, Kalinchenko G, Yanovsky V 2006 Opt. Lett. 31 1456
[12] Liu C, Wang Z H, Li W C, Liu F, Wei Z Y 2010 Acta Phys. Sin. 59 7036 (in Chinese) [刘成, 王兆华, 李伟昌, 刘峰, 魏志义 2010 59 7036]
[13] Petrov G I, Albert O, Etchepare J, Saltiel S M 2001 Opt. Lett. 26 355
[14] Minkovski N, Petrov G I, Saltiel S M, Albert O, Etchepare J 2004 J. Opt. Soc. Am. B 21 1659
[15] Wang X T, Yin D J, Shuai B, Li R X, Xu Z Z 2004 Chinese J. Lasers 31 1018 (in Chinese) [王兴涛, 印定军, 帅斌, 李儒新, 徐至展 2004 中国激光 31 1018]
[16] Zhang F L, Ouyang X P, Xie X L, Yang Q W, Guo A L, Sun M Z, Lin Z Q, 2009 Chinese J. Lasers 36 1171 (in Chinese) [张福领, 欧阳小平, 谢兴龙, 杨庆伟, 郭爱林, 孙美智, 林尊琪 2009 中国激光 36 1171]
[17] Chen X W, Li X F, Liu J, Wei P F, Ge X C, Li R X, Xu Z Z 2007 Opt. Lett. 32 2402
[18] Jullien A, Durfee C G, Trisorio A, Canova L, Rousseau J P, Mercier B, Antonucci L, Cheriaux G, Albert O, Lopez-Martens R, 2009 Appl. Phys. B 96 293
[19] Oleg Konoplev 2000 Ph.D. Dissertation (New York: University of Rochester)
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