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Proceedings Paper

1-MHz high power femtosecond Yb-doped fiber chirped-pulse amplifier
Author(s): Zhong-Qi Hu; Pei-Long Yang; Hao Teng; Jiang-Feng Zhu; Zhi-Yi Wei
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Paper Abstract

A practical femtosecond polarization-maintaining Yb-doped fiber amplifier enabling 153 fs transform-limited pulse duration with 32 μJ pulse energy at 1 MHz repetition rate corresponding to a peak power of 0.21 GW is demonstrated. The laser system based on chirped-pulse amplification (CPA) technique is seeded by a dispersion managed, nonlinear polarization evolution (NPE) mode-locked oscillator with spectrum bandwidth of 31 nm at 1040 nm and amplified by three fiber pre-amplifying stages and a rod type fiber main amplifying stage. The laser works with beam quality of M2 of 1.3 and power stability of ∼0.63% (root mean square, RMS) over 24 hours will be stable sources for industrial micromachining, medical therapy and scientific research.

Paper Details

Date Published: 12 January 2018
PDF: 6 pages
Proc. SPIE 10619, 2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 106190P (12 January 2018); doi: 10.1117/12.2295472
Show Author Affiliations
Zhong-Qi Hu, Xidian Univ. (China)
Pei-Long Yang, Xidian Univ. (China)
Hao Teng, Institute of Physics (China)
Jiang-Feng Zhu, Xidian Univ. (China)
Zhi-Yi Wei, Institute of Physics (China)


Published in SPIE Proceedings Vol. 10619:
2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Zhiyi Wei; Chunqing Gao; Pu Wang; Franz X. Kärtner; Jayanta Kumar Sahu; Liquan Dong, Editor(s)

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