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在时间频率域中,啁啾脉冲被淹没在放大自发辐射等噪声中,且其瞬时频率线性分布,基于此,提出采用光谱扫描滤波的办法来提升高功率飞秒激光系统的信噪比,并以法布里珀罗干涉仪作为光谱扫描滤波器,对该法提升信噪比的效果进行了详细的理论分析.采用短时傅里叶变换方法,研究了光谱扫描滤波器对自发辐射放大(ASE)的滤波效果,数值分析表明,在时间抖动为-2 ps到2 ps之间、光谱扫描滤波器的通带宽度为0.4 nm条件下,该法能将飞秒激光系统的信噪比提升2个量级,而啁啾信号光以超过90%的透光率通过光谱扫描滤波器;级联光谱扫描滤波方式能进一步提升飞秒激光信噪比.
[1] Bahk S W,Rousseau P,Planchon T A,Chvykov V,Kalintchenko G,Maksimchuk A,Mourou G A,Yanovsky V 2004 Opt.Lett.29 2837
[2] Perry M D,Pennington D M,Stuart B C,Tietbohl G,Britten J A,Brown C,Herman S,Golick B,Kartz M,Miller J,Powell H T,Vergino M,Yanovsky V 1999 Opt.Lett.24 160
[3] Bonlie J D,Patterson F,Price D,White B,White,Springer P 2000 Appl.Phys.B 70 S155
[4] Huang X J,Peng H S,Wei X F,Wang X D,Zeng X M,Zhou K N,Guo Y,Liu L Q,Wang X,Zhu Q H,Lin D H,Tang X D,Zhang X M,Chu X L,Wang Q Y 2005 High Power Laser and Particle Beams 17 1685 (in Chinese)[黄小军,彭翰生,魏晓峰,王晓东,曾小明,周凯南,郭仪,刘兰琴,王逍,朱启华,林东晖,唐晓东,张小民,楚晓亮,王清月 2005 强激光与粒子束 17 1685]
[5] Umstadter D 2001 Physics Plasmas 8 177
[6] Wharton K B,Boley C D,Komashko A M,Rubenchik A M,Zweiback J,Crane J,Hays G,Cowan T E,Ditmire T 2001 Phys.Rev.E 64 02540121
[7] Peng H S 2006 Chinese Journal of Lasers 33 721 (in Chinese)[彭翰生 2006 中国激光 33 721]
[8] Li W C,Wang Z H,Liu C,Teng H,Wei Z Y 2011 Acta Phys.Sin.60 124210 (in Chinese)[李伟昌,王兆华,刘成,滕浩,魏志义 2011 物理学报 60 124210 ]
[9] Chvykov V,Rousseau P,Reed S,Kalinchenko G,andYanovsky V 2006 Opt.Lett.31 1456
[10] 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 物理学报 59 7036]
[11] Lévy A,Ceccotti T,Oliveira P D,Réau F,Perdrix M,Quéré F,Monot P,Bougeard M,Lagadec H,Martin P 2007 Opt.Lett.32 310
[12] Yanovsky Y,Felix C,Mourou G 2002 Appl.Phys.B 74 S181
[13] Homoelle D,Gaeta A L,Yanovsky V,Mourou G 2002 Opt.Lett.27 1646
[14] Wang Z H,Liu C,Shen Z W,Zhang Q,Teng H,Wei Z Y 2011 Opt.Lett.36 3194
[15] Kiriyama H,Mori M,Nakai Y,Yamamoto Y,Tanoue M,Akutsu A,Shimomura T,Kondo S,Kanazawa S,Daido H,Kimura T,Miyanaga N 2007 Opt.Lett.32 2315
[16] Ross I N,Matousek P,Towrie M,Langley A J,Collier J L 1997 Opt.Commun.114 125
[17] Yoshida H,Ishii E,Kodama R,Fujita H,Kitagawa Y,Izawa Y,Yamanaka T 2003 Opt.Lett.28 257
[18] Zeng S G,Zhang B,Dan Y Q,Sui Z,Sun N C 2010 Opt.Commun.283 4054
[19] Wang Z H,Liu,C,Shen Z W,Wei Z Y 2011 Opt.Lett.36 319
[20] Ren H Y,Qian L J,Zhu H Y 2010 Opt.Exp.218 12948
[21] Hiromitsu K,Mori M,Yoshiki N 2010 Appl.Opt.49 2105
[22] Bagnoud V,Zuegel J D,Forget N,Blanc C L 2007 Opt.Exp.15 5504
[23] Xu Y,Leng Y X,Lin L H,Wang W Y,Huang Y S,Li R X 2010 Chinese Optics Letters 8 123
[24] Xiao Y Z,Maywar D N,Agrawal G P 2011 JOSAB 28 1685
[25] Yu J,Yuan S,Gao J Y,Sun L Z 2001 JOSA A 18 2153
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[1] Bahk S W,Rousseau P,Planchon T A,Chvykov V,Kalintchenko G,Maksimchuk A,Mourou G A,Yanovsky V 2004 Opt.Lett.29 2837
[2] Perry M D,Pennington D M,Stuart B C,Tietbohl G,Britten J A,Brown C,Herman S,Golick B,Kartz M,Miller J,Powell H T,Vergino M,Yanovsky V 1999 Opt.Lett.24 160
[3] Bonlie J D,Patterson F,Price D,White B,White,Springer P 2000 Appl.Phys.B 70 S155
[4] Huang X J,Peng H S,Wei X F,Wang X D,Zeng X M,Zhou K N,Guo Y,Liu L Q,Wang X,Zhu Q H,Lin D H,Tang X D,Zhang X M,Chu X L,Wang Q Y 2005 High Power Laser and Particle Beams 17 1685 (in Chinese)[黄小军,彭翰生,魏晓峰,王晓东,曾小明,周凯南,郭仪,刘兰琴,王逍,朱启华,林东晖,唐晓东,张小民,楚晓亮,王清月 2005 强激光与粒子束 17 1685]
[5] Umstadter D 2001 Physics Plasmas 8 177
[6] Wharton K B,Boley C D,Komashko A M,Rubenchik A M,Zweiback J,Crane J,Hays G,Cowan T E,Ditmire T 2001 Phys.Rev.E 64 02540121
[7] Peng H S 2006 Chinese Journal of Lasers 33 721 (in Chinese)[彭翰生 2006 中国激光 33 721]
[8] Li W C,Wang Z H,Liu C,Teng H,Wei Z Y 2011 Acta Phys.Sin.60 124210 (in Chinese)[李伟昌,王兆华,刘成,滕浩,魏志义 2011 物理学报 60 124210 ]
[9] Chvykov V,Rousseau P,Reed S,Kalinchenko G,andYanovsky V 2006 Opt.Lett.31 1456
[10] 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 物理学报 59 7036]
[11] Lévy A,Ceccotti T,Oliveira P D,Réau F,Perdrix M,Quéré F,Monot P,Bougeard M,Lagadec H,Martin P 2007 Opt.Lett.32 310
[12] Yanovsky Y,Felix C,Mourou G 2002 Appl.Phys.B 74 S181
[13] Homoelle D,Gaeta A L,Yanovsky V,Mourou G 2002 Opt.Lett.27 1646
[14] Wang Z H,Liu C,Shen Z W,Zhang Q,Teng H,Wei Z Y 2011 Opt.Lett.36 3194
[15] Kiriyama H,Mori M,Nakai Y,Yamamoto Y,Tanoue M,Akutsu A,Shimomura T,Kondo S,Kanazawa S,Daido H,Kimura T,Miyanaga N 2007 Opt.Lett.32 2315
[16] Ross I N,Matousek P,Towrie M,Langley A J,Collier J L 1997 Opt.Commun.114 125
[17] Yoshida H,Ishii E,Kodama R,Fujita H,Kitagawa Y,Izawa Y,Yamanaka T 2003 Opt.Lett.28 257
[18] Zeng S G,Zhang B,Dan Y Q,Sui Z,Sun N C 2010 Opt.Commun.283 4054
[19] Wang Z H,Liu,C,Shen Z W,Wei Z Y 2011 Opt.Lett.36 319
[20] Ren H Y,Qian L J,Zhu H Y 2010 Opt.Exp.218 12948
[21] Hiromitsu K,Mori M,Yoshiki N 2010 Appl.Opt.49 2105
[22] Bagnoud V,Zuegel J D,Forget N,Blanc C L 2007 Opt.Exp.15 5504
[23] Xu Y,Leng Y X,Lin L H,Wang W Y,Huang Y S,Li R X 2010 Chinese Optics Letters 8 123
[24] Xiao Y Z,Maywar D N,Agrawal G P 2011 JOSAB 28 1685
[25] Yu J,Yuan S,Gao J Y,Sun L Z 2001 JOSA A 18 2153
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