钛宝石飞秒激光器用色散补偿Gires-Tournois镜的研究

马群; 章岳光; 沈伟东; 罗震岳; 张青; 张淑娜; 叶蓬; 袁文佳; 刘旭; 魏志义

doi:10.7498/aps.60.027804

摘要

根据钛宝石飞秒激光器的色散补偿要求设计了单次反射平均补偿量为-60 fs2的GT(Gires-Tournois)镜,采用离子束辅助沉积技术结合光学监控技术制作了器件.用分光光度计对650—950 nm波段薄膜反射率进行测试,结果表明反射率测试曲线与设计曲线十分符合,同时利用白光干涉系统对群延迟色散进行了测试,测试结果与设计符合得很好,实际的色散曲线振荡基本控制在±20 fs2以内.应用该GT镜进行钛宝石飞秒激光系统的色散补偿,取得了很好的锁模效果,得到了29 fs的超短脉冲.

关键词:

Abstract

A Gires-Tournois(GT) mirror with a group delay dispersion (GDD) of -60 fs2 in one reflection was designed according to the requirement of dispersion compensation in the Ti-sapphire femtosecond laser system. It was manufactured by ion assisted deposition combined with the optical monitoring in transmission. The reflectance of the mirror was measured by a spectrophometer working in the range from 650 nm to 950 nm with a resolution of 1 nm. The results were consistent with the design. Furthermore, a home-made white light interferometry system was employed to test the reflection GDD and the result also agreed well with the design. The experimental GDD oscillation was less than ± 20 fs2. The GT mirror was applied in the Ti-sapphire femtosecond laser system and a good clamping result was obtained. Finally a 29 fs ultra-short pulse was acquired.

Keywords:

作者及机构信息

(1)浙江大学现代光学仪器国家重点实验室,杭州 310027; (2)中国科学院物理研究所光物理重点实验室,北京 100190

基金项目: 国家自然科学基金(批准号:60708013,60608014)资助的课题.

Authors and contacts

(1)Laboratory of Optical Physics,Institute of Physics, Chinese Academy of Sciences, Beijing 100190,China; (2)State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027,China

参考文献

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[19]

施引文献

[1]	www.layertec.de
[2]	Cao S Y, Zhang Z G, Chai L, Wang Q Y 2008 Acta Phys. Sin. 57 2971 (in Chinese) [曹士英、张志刚、柴路、王清月 2008 物理学报 57 2971]
[3]	Wang Y L, Zhou X G, Wu H, Ding L E 2009 Chin. Phys. B 18 4308
[4]	Zhao Y Y, Han H N, Teng H, Wei Z Y 2009 Acta Phys. Sin. 58 1709(in Chinese)[赵研英、韩海年、滕浩、魏志义 2009 物理学报 58 1709]
[5]	Szipcs R, Koházi-Kis A 1997 Appl.phys.B 65 115
[6]	Steinmeyer G 2006 Appl.Opt. 45 1490
[7]	Tian J R, Han H N, Zhao Y Y, Wang P, Zhang W, Wei Z Y 2006 Acta Phys. Sin. 55 4725 (in Chinese) [田金荣、韩海年、赵研英、王鹏、张炜、魏志义 2006 物理学报 55 4725]
[8]	Szipcs R, Ferencz K, Splielmann C, Krausz F 1994 Opt.Lett. 19 203
[9]	Luo Z Y, Liu X, Shen W D, Xue H, Zhang Y G, Gu P F 2009 Acta Opt. Sin. 9 2619(in Chinese) [罗震岳、刘旭、沈伟东、薛晖、章岳光、顾培夫 2009 光学学报 9 2619]
[10]	Luo Z Y, Shen W D, Liu X, Gu P F, Xia C 2010 Chin. Opt. Lett. 3 342 (in Chinese)[罗震岳、沈伟东、刘旭、顾培夫、夏梣 2010 中国光学快报 3 342]
[11]	Pervak V, Tikhonravov V, Trubetskov M K, Naumov S, Krausz F, Apolonski A 2007 Appl. Phys. B 87 5
[12]	Szipcs R, Koházi-Kis A, Lakó S, Apai P, Kovács A P, DeBell G, Mott L, Louderback A W, Tikhonravov A V, Trubetskov M K 2000 Appl. Phys. B 70 S51
[13]	Xie X D, Wang Q Y, Wang Z, Zhang W L, Chai L 2005 Acta Phys. Sin. 54 3159(in Chinese)[谢旭东、王清月、王专、张伟力、柴路 2005 物理学报 54 3159]
[14]	Tikhonov A N, Tikhonravov A V, Trubetskov M K 1993 Comp. Maths. Math. Phys. 33 1339
[15]	Tikhonravov A V, Trubetskov M K, DeBell G W 1996 Appl. Opt. 35 5493
[16]	Bischoff M, Stenzel O, Gbler D, Kaiser N 2005 Proc. SPIE 5963 59631N-1
[17]	Tang J F,Gu P F,Liu X,Li H F 2006 Modern Optical Thin Film Technology (Hangzhou:Zhejiang University Press)p262(in Chinese)[唐晋发、顾培夫、刘旭、李海峰 2006 现代光学薄膜技术(杭州:浙江大学出版社)第262页]
[18]	Xue H, Shen W D, Gu P F, Luo Z Y, Zhang Y G, Liu X 2009 Chin. Opt. Lett. 7 446 (in Chinese)[薛晖、沈伟东、顾培夫、罗震岳、章岳光、刘旭 2009 中国光学快报 7 446 ]
[19]

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