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Proceedings Paper

High-power chirped pulse amplification based on Yb-doped rod-type PCF and nonlinear amplifying loop mirror oscillator
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Paper Abstract

We report a high-power chirped pulse amplification (CPA) based on nonlinear amplifying loop mirror (NALM) oscillator and Yb-doped rod-type photonic crystal fiber (PCF). An all-polarization-maintaining NALM mode-locked fiber oscillator was used providing an average power of 9.4 mW, a pulse duration of 5.3 ps at the repetition rate of 21 MHz. After pulse stretching, selection and amplification, an average power of 120 W with the pulse duration of 145 ps at repetition rate of 4.2 MHz has been achieved. The pulse duration is compressed to 14 ps using a pair of reflective gratings coated by gold film. In order to prevent the damage of the gratings, the compressed average power is limited to 51 W. The compressed pulse average power can be further improved by using transmissive gratings coated by dielectric film.

Paper Details

Date Published: 12 March 2020
PDF: 6 pages
Proc. SPIE 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 114370Q (12 March 2020); doi: 10.1117/12.2550108
Show Author Affiliations
Huijuan Li, Beijing Univ. of Technology (China)
Xiangbao Bu, Beijing Univ. of Technology (China)
Yuhang Shi, Beijing Univ. of Technology (China)
Zhigang Peng, Beijing Univ. of Technology (China)
Yan Xu, Beijing Univ. of Technology (China)
Zhaochen Cheng, Beijing Univ. of Technology (China)
Pu Wang, Beijing Univ. of Technology (China)


Published in SPIE Proceedings Vol. 11437:
2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Zhiyi Wei; Chunqing Gao; Pu Wang; Franz X, Kärtner; Stefan A. Weber, Editor(s)

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