百微焦级飞秒光纤激光放大系统

李峰; 杨直; 赵卫; 李强龙; 胡晓鸿; 杨小君; 王屹山

doi:doi:10.3788/cjl201542.1202005

中国激光, 2015, 42 (12): 1202005, 网络出版: 2015-12-08

百微焦级飞秒光纤激光放大系统下载： 643次

Hundred Micro-Joules Level Femtosecond Fiber Laser Amplification System

论文大纲

李峰 ^*杨直赵卫李强龙胡晓鸿杨小君王屹山

作者单位

中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室, 陕西西安 710119

激光器光子晶体光纤啁啾脉冲放大飞秒激光 lasers photonic crystal fiber chirped pulse amplification femtosecond laser

AI 词云图 AI一句话精读 AI短摘要

注：本部分内容由 AI 自动生成，请您知悉。

摘要

实验研究了基于掺Yb^3＋光纤的啁啾脉冲放大(CPA)系统。利用半导体可饱和吸收体锁模光纤激光器作为种子源，采用啁啾脉冲放大技术，将波长为1030 nm 的脉冲展宽到数百皮秒进行放大。采用多级的掺镱单模光纤和双包层光纤组成预放大器，主放大器采用大模场的掺镱棒状光子晶体光纤作为激光工作物质，实现了重复频率为211 kHz，功率为50 W 的单模皮秒脉冲输出。通过合理地控制放大系统中每一级光纤放大器的增益以及非线性积累量，有效抑制了高能脉冲放大过程中非线性效应对脉冲时域特性的影响。采用反射式光栅对，对输出的放大脉冲进行压缩，最终获得了脉宽为887 fs 的激光输出，单脉冲能量达到124 μJ，对应峰值功率为139.8 MW，该实验结果为国内首次报道基于光纤结构的百微焦级飞秒激光系统。

Abstract

A fiber chirped pulse amplification system based on Yb3 + doped fibers is demonstrated. The seeder is a mode-locked fiber laser with semiconductor saturable absorber, the chirped pulse amplification technique is applied to stretch the 1030 nm pulse to several hundred picoseconds to be amplified. The single mode picosecond pulses with average power of 50 W and repetition rates of 211 kHz are achieved by using multistage pre-amplifier consisted with Yb3+ doped single mode fiber amplifier and double cladding fiber amplifier and the main amplifier with a large mode area rod-typed photonic crystal fiber as the laser gain material. Properly controlled the gain and the nonlinearity in every step of the amplification system, the influence of nonlinear effects are effectively suppressed on the pulse of time domain in high energy amplification. Laser pulses with pulse duration of 887 fs are generated by a reflective grating-pair compressor, corresponding to single pulse energy of 124 μJ and peak power of 139.8 MW. This experimental result of hundred micro joules level femtosecond laser based on fiber structure is firstly reported in China.

参考文献

[1] M E Fermann, A Galvanauskas, G Sucha. Ultrafast Laser: Technology and Application[M]. New York: Marcel Dekker Inc, 2002, 323- 765.

[2] Rudolf Weber, Thomas Graf, Peter Berger, et al.. Heat accumulation during pulsed laser materials processing[J]. Optics Express, 2014, 22(9): 11312-11324.

[3] Ik-Bu sohn,Man-Seop Lee. Nano-structuring of transparent materials by femtosecond laser pulses[J]. Journal of the Optical Society of Korea, 2005, 9(1): 1-5.

[4] D N Schimpf, D Müller, S H drich, et al.. Control of nonlinearity in fiber CPA system by pulse-shaping[C]. OSA/ASSP, 2007: TuC2.

[5] Tino Eidam, Jan Rothhardt, Fabian Stutzki, et al.. Fiber chirped-pulse amplification system emitting 3.8 GW peak power[J]. Opt Express, 2011, 19(1): 255-260.

[6] F R ser, T Eidam, J Rothhardt, et al.. Millijoule pulse energy high repetition rate femtosecond fiber chirped-pulse amplification system [J]. Opt Express, 2007, 32(24): 3495-3497.

[7] Peng Wan, Lih-Mei Yang, Jian Liu. All fiber-based Yb-doped high energy, high power femtosecond fiber lasers[J]. Opt Express, 2013, 21(24): 29854-29859.

[8] 刘博文, 胡明列, 宋有建, 等. 微焦耳、百飞秒光子晶体光纤飞秒激光放大器[J]. 中国激光, 2010, 37(9): 2415-2418.

Liu Bowen, Hu Minglie, Song Youjian, et al.. Photonic crystal fiber femtosecond laser amplifier with microjoules and 100 fs levle output [J]. Chinese J Lasers, 2010, 37(9): 2415-2418.

[9] 方晓惠, 胡明列, 刘博文, 等. 百兆瓦峰值功率的多芯光子晶体光纤飞秒激光放大系统[J]. 中国激光, 2010, 37(9): 2366-2370.

Fang Xiaohui, Hu Minglie, Liu Bowen, et al.. Hundreds of megawatts peak power multi-core photonic crystal fiber laser amplifier[J]. Chinese J Lasers, 2010, 37(9): 2366-2370.

[10] 石俊凯, 柴路, 赵晓薇, 等. 全光子晶体光纤单级放大产生34 W 高功率飞秒激光[J]. 中国激光, 2014, 41(2): 0202001.

Shi Junkai, Chai Lu, Zhao Xiaowei, et al.. Generation of 34 W high power femtosecond pulses by single-stage direct amplification in an all-photonic-crystal-fiber laser system[J]. Chinese J Lasers, 2014, 41(2): 0202001.

[11] Guanglei Ding, Xin Zhao, Yishan Wang, et al.. Ultra-short pulsed ytterbium doped fiber laser and amplifier[J]. Chin Opt Lett, 2006, 4 (4): 222-224.

李峰, 杨直, 赵卫, 李强龙, 胡晓鸿, 杨小君, 王屹山. 百微焦级飞秒光纤激光放大系统[J]. 中国激光, 2015, 42(12): 1202005. Li Feng, Yang Zhi, Zhao Wei, Li Qianglong, Hu Xiaohong, Yang Xiaojun, Wang Yishan. Hundred Micro-Joules Level Femtosecond Fiber Laser Amplification System[J]. Chinese Journal of Lasers, 2015, 42(12): 1202005.

百微焦级飞秒光纤激光放大系统下载： 643次

关于本站 Cookie 的使用提示

全站搜索

百微焦级飞秒光纤激光放大系统 下载： 643次

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索

百微焦级飞秒光纤激光放大系统下载： 643次