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  • Received: Jan. 24, 2019

    Accepted: Mar. 8, 2019

    Posted: Jun. 5, 2019

    Published Online: Jun. 5, 2019

    The Author Email: Qiang Hao (qianghao@usst.edu.cn)

    DOI: 10.3788/COL201917.061401

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    Peng Luo, Qiang Hao, Hanmei Fu, Heping Zeng. 60 nJ, 95 fs environmentally stable Er-doped fiber laser system[J]. Chinese Optics Letters, 2019, 17(6): 061401

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Chinese Optics Letters, Vol. 17, Issue 6, 061401 (2019)

60 nJ, 95 fs environmentally stable Er-doped fiber laser system

Peng Luo1, Qiang Hao1,*, Hanmei Fu1, and Heping Zeng1,2

Author Affiliations

  • 1Shanghai Key Laboratory of Modern Optical System, and Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
  • 2State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China

Abstract

We demonstrate here an environmentally stable and extremely compactable Er-doped fiber laser system capable of delivering sub-100-fs temporal duration and tens of nanojoules at a repetition rate of 10 MHz. This laser source employs a semiconductor saturable absorber mirror mode-locked soliton laser to generate seed pulses. A single-mode-fiber amplifier and a double-cladding-fiber amplifier (both with double-pass configuration) are bridged by a divider and used to manage the dispersion map and boost the soliton pulses. By using 64 replicas, pulses with as high as 60 nJ energy within 95 fs duration are obtained at 10 MHz, corresponding to 600 kW peak power.