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  • Received: Feb. 24, 2004

    Accepted: --

    Posted: Jun. 6, 2006

    Published Online: Jun. 6, 2006

    The Author Email: Pinghe Wang (wangpinghe@sina.com)

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    Pinghe Wang, Li Zhan, Qinghao Ye, Yuxing Xia. Generation of the numerator = 2 rational harmonic mode-locked pulses in fiber ring lasers[J]. Chinese Optics Letters, 2004, 2(9): 09534

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Chinese Optics Letters, Vol. 2, Issue 9, 09534 (2004)

Generation of the numerator = 2 rational harmonic mode-locked pulses in fiber ring lasers

Pinghe Wang1,2,*, Li Zhan1,2, Qinghao Ye1,2, and Yuxing Xia1,2

Author Affiliations

  • 1Institute of Optics and Photonics, National Laboratory on Fiber Optic Communication Networks &
  • 2Advanced Optical Communication Systems, Shanghai Jiao Tong University, Shanghai 200240

Abstract

In conventional rational harmonic mode-locking, optical pulse trains with the repetition rate of (pn+1)f_(c) are generated when the modulation frequency of the in-cavity modulator is set at f_(m)=(n+1/p)f_(c), where n and p are both integers, f_(c) is the fundamental cavity frequency. In this paper, we report that rational harmonic mode locking phenomenon takes place in the fiber lasers when the modulation frequency is set at f_(m)=(n+2/p)f_(c). The pulse generations are experimentally demonstrated when the numerator of the rational corresponds to 2 in 5th and 7th order rational harmonic mode-locking.

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