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  • Received: Dec. 17, 2019

    Accepted: Mar. 31, 2020

    Posted: May. 9, 2020

    Published Online: May. 9, 2020

    The Author Email: Yang Liu (, Wenxue Li (

    DOI: 10.1017/hpl.2020.17

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    Zhiwei Zhu, Yang Liu, Daping Luo, Chenglin Gu, Lian Zhou, Gehui Xie, Zejiang Deng, Wenxue Li. Tunable optical frequency comb from a compact and robust Er:fiber laser[J]. High Power Laser Science and Engineering, 2020, 8(2): 02000e17

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High Power Laser Science and Engineering, Vol. 8, Issue 2, 02000e17 (2020)

Tunable optical frequency comb from a compact and robust Er:fiber laser

Zhiwei Zhu1, Yang Liu1,†, Daping Luo1, Chenglin Gu1, Lian Zhou1, Gehui Xie1, Zejiang Deng1, and Wenxue Li1,2,†

Author Affiliations

  • 1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • 2Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China


We report on a compact and robust self-referenced optical frequency comb with a tunable repetition rate, generated by an all-polarization-maintaining (PM) mode-locked Er-doped fiber laser. The spacing between comb teeth can be tuned above 300 kHz at a repetition rate of 101 MHz. The repetition rate and the carrier–envelope offset of the laser are stabilized separately, and the relative residual phase noises are determined to be $336~\unicode[STIX]{x03BC}\text{rad}$ and 713 mrad (1 Hz–1 MHz). The accurate frequency characteristics and the stable structure show great potential for the use of such a comb in applications of precision measurements.


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