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According to the theory of chirped pulse amplification (CPA), we analyze numerically the gain characteristic of laser pulses in multi-pass amplifier. A CPA Ti:sapphire laser with 10-pass scheme is designed and built. The experimental result shows that the contrast ratio of the femtosecond pulse is obviously enhanced by two orders from 10-5 to 10-7 under a pump flux of 1.6 J/cm2. This work demonstrates that the contrast ratio of the amplified femtosecond laser pulse could be effectively improved by multi-pass preamplifier.
[1] Aoyama M, Yamakawa K, Akahane Y, Ma J, Inoue N, Ueda H, Kiriyama H 2003 Opt. Lett. 28 1594
[2] Wei Z Y, Wang Z H, Wang P, Ling W J, Zhu J F, Han H N, Zhang J 2008 J. Phys. 112 032003
[3] [4] Zhu B, Gu Y Q, Wang Y X, Liu H J, Wu Y C, Wang L, Wang J, Wen X L, Jiao C Y, Teng J, He Y L 2009 Acta Phys. Sin. 58 1100 (in Chinese)[朱 斌、谷渝秋、王玉晓、刘红杰、吴玉迟、王 磊、王 剑、温贤伦、焦春晔、滕 建、何颖玲 2009 物理学报 58 1100]
[5] [6] Yan C Y, Zhang Q J 2010 Acta Phys. Sin. 59 322 (in Chinese)[闫春燕、张秋菊 2010 物理学报 59 322]
[7] [8] Mourou G A, Barty C P J, Perry M D 1998 Phys. Today 51 22
[9] [10] [11] Nomura Y, Horlein R, Tzallas P, Dromey B, Rykovanov S, Major Z, Osterhoff J, Karsch S, Veisz L, Zepf M 2009 Nat. Phys. 5 124
[12] [13] Drake P R 2009 Nat. Phys. 5 786
[14] Itatani J, Faure J, Nantel M, Mourou G, Watanabe S 1998 Opt. Commun. 148 70
[15] [16] [17] Yanovsky V, Felix C, Mourou G 2001 IEEE J. Sel. Top. Quantum Electron. 7 539
[18] Herrmann D, Veisz L, Tautz R, Tavella F, Schmid K, Pervak V, Krausz F 2009 Opt. Lett. 34 2459
[19] [20] Kalashnikov M P, Risse E, Schnnage H, Sandner W 2005 Opt. Lett. 30 923
[21] [22] [23] Chvykov V, Rousseau P, Reed S, Kalinchenko G, Yanovsky V 2006 Opt. Lett. 31 1456
[24] [25] Jullien A, Albert O, Burgy F, Hamoniaux G, Rousseau J, Chambaret J, Aug-Rochereau F, Chriaux G, Etchepare J, Minkovski N, Saltiel S M 2005 Opt. Lett. 30 920
[26] [27] Zhang S K, Wen G Q, Zhou P Z, Wang X D, Man Y Z, Peng H S 1997 Acta Phys. Sin. 46 908 (in Chinese)[张树葵、文国庆、周丕璋、王晓东、满永在、彭翰生 1997 物理学报 46 908]
[28] [29] Ling W J, Wang Z H, Wang P, Jia Y L, Tian J R, Wei Z Y 2005 Acta Phys. Sin. 54 1028 (in Chinese)[令维军、王兆华、王 鹏、贾玉磊、田金荣、魏志义 2005 物理学报 54 1028]
[30] [31] Wei Z Y, Zhang J, Xia J F, Feng B H, Zhang X L, Qiu Y 2000 Sci. China A 30 1046 (in Chinese) [魏志义、张 杰、夏江帆、冯宝华、张秀兰、邱 阳 2000 中国科学A 30 1046]
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[1] Aoyama M, Yamakawa K, Akahane Y, Ma J, Inoue N, Ueda H, Kiriyama H 2003 Opt. Lett. 28 1594
[2] Wei Z Y, Wang Z H, Wang P, Ling W J, Zhu J F, Han H N, Zhang J 2008 J. Phys. 112 032003
[3] [4] Zhu B, Gu Y Q, Wang Y X, Liu H J, Wu Y C, Wang L, Wang J, Wen X L, Jiao C Y, Teng J, He Y L 2009 Acta Phys. Sin. 58 1100 (in Chinese)[朱 斌、谷渝秋、王玉晓、刘红杰、吴玉迟、王 磊、王 剑、温贤伦、焦春晔、滕 建、何颖玲 2009 物理学报 58 1100]
[5] [6] Yan C Y, Zhang Q J 2010 Acta Phys. Sin. 59 322 (in Chinese)[闫春燕、张秋菊 2010 物理学报 59 322]
[7] [8] Mourou G A, Barty C P J, Perry M D 1998 Phys. Today 51 22
[9] [10] [11] Nomura Y, Horlein R, Tzallas P, Dromey B, Rykovanov S, Major Z, Osterhoff J, Karsch S, Veisz L, Zepf M 2009 Nat. Phys. 5 124
[12] [13] Drake P R 2009 Nat. Phys. 5 786
[14] Itatani J, Faure J, Nantel M, Mourou G, Watanabe S 1998 Opt. Commun. 148 70
[15] [16] [17] Yanovsky V, Felix C, Mourou G 2001 IEEE J. Sel. Top. Quantum Electron. 7 539
[18] Herrmann D, Veisz L, Tautz R, Tavella F, Schmid K, Pervak V, Krausz F 2009 Opt. Lett. 34 2459
[19] [20] Kalashnikov M P, Risse E, Schnnage H, Sandner W 2005 Opt. Lett. 30 923
[21] [22] [23] Chvykov V, Rousseau P, Reed S, Kalinchenko G, Yanovsky V 2006 Opt. Lett. 31 1456
[24] [25] Jullien A, Albert O, Burgy F, Hamoniaux G, Rousseau J, Chambaret J, Aug-Rochereau F, Chriaux G, Etchepare J, Minkovski N, Saltiel S M 2005 Opt. Lett. 30 920
[26] [27] Zhang S K, Wen G Q, Zhou P Z, Wang X D, Man Y Z, Peng H S 1997 Acta Phys. Sin. 46 908 (in Chinese)[张树葵、文国庆、周丕璋、王晓东、满永在、彭翰生 1997 物理学报 46 908]
[28] [29] Ling W J, Wang Z H, Wang P, Jia Y L, Tian J R, Wei Z Y 2005 Acta Phys. Sin. 54 1028 (in Chinese)[令维军、王兆华、王 鹏、贾玉磊、田金荣、魏志义 2005 物理学报 54 1028]
[30] [31] Wei Z Y, Zhang J, Xia J F, Feng B H, Zhang X L, Qiu Y 2000 Sci. China A 30 1046 (in Chinese) [魏志义、张 杰、夏江帆、冯宝华、张秀兰、邱 阳 2000 中国科学A 30 1046]
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