| 高功率飞秒脉冲光纤激光系统 |
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| 引用本文： | 杨康文,郝强,李文雪,曾和平.高功率飞秒脉冲光纤激光系统[J].红外与激光工程,2011,40(7). |
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| 作者姓名： | 杨康文 郝强 李文雪 曾和平 |
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| 作者单位： | 华东师范大学精密光谱科学与技术国家重点实验室,上海,200062 |
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| 基金项目： | 上海市自然科学基金(10ZR1409000) |
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| 摘 要： | 基础科学研究和超精细工业加工领域的发展迫切需要高重复频率、高功率的飞秒脉冲激光。采用啁啾脉冲放大技术,以掺镱双包层光子晶体光纤作为增益介质,搭建了高平均功率飞秒脉冲光纤激光系统。系统包括被动锁模振荡器、脉冲展宽器、单模光纤预放大器、光子晶体光纤功率放大器和脉冲压缩器5部分。实验上获得了重复频率40 MHz、平均功率150 W、脉冲宽度273 fs的超短脉冲输出。整个系统置于3 m×1.5 m的光学平台上,通过模块化和集成化的改进,该系统体积有望大幅度减小,为科学研究和工业应用提供有力工具。
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| 关 键 词： | 高功率飞秒激光器 光纤激光器 双包层光纤 |
High-power femtosecond pulses fiber laser system |
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| Yang Kangwen,Hao Qiang,Li Wenxue,Zeng Heping.High-power femtosecond pulses fiber laser system[J].Infrared and Laser Engineering,2011,40(7). |
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| Authors: | Yang Kangwen Hao Qiang Li Wenxue Zeng Heping |
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| Affiliation: | Yang Kangwen,Hao Qiang,Li Wenxue,Zeng Heping(State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China) |
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| Abstract: | High-repetition-rate high-power femtosecond pulses are urgently needed for the development of both scientific research and hyperfine industrial processing.In this paper,chirped pulsed amplification method was used to generate high-repetition-rate high-power ultrashort pulses.Yb-doped large-mode-area double-clad photonic crystal fiber was employed as the gain medium due to the near diffraction limit beam quality as well as the excellent heat dissipation character.The system included passive mode-locked ultra... |
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| Keywords: | high-power femtosecond laser fiber laser double-clad fiber |
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