Collection Of theses on high power laser and plasma physics, Volume. 3, Issue 1, 873(2005)

Study of Self Mode-Locking in Q-Switched and Continuous Working Yb-Doped Fiber Laser

[in Chinese]1,2、*, [in Chinese]1, [in Chinese]1,2, [in Chinese]1, [in Chinese]3, and [in Chinese]1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
  • show less

    A clear and stable self mode-locked pulse train was observed with Q-switched pulse envelope in diode pumped Yb-doped Q-switched fiber lasers. Self phase modulation (SPM) is regarded as the main reason to generate mode-locked pulses in this Q-switched fiber laser. The main effect of SPM is to broaden the spectrum of the optical pulses. If the width of the broadened spectrum is comparable with the cavity-mode spacing then the modes can interact with each other, and a fixed-phase relationship between different oscillating axial modes is maintained, resulting in the mode-locked operation. On this basis, the acousto-optic modulator (AOM) was removed and two gratings were used as the cavity mirrors, and an all-fiber Fabry-Perot (F-P) cavity fiber laser was realized. Similar mode-locked pulses were observed when using two ring reflectors as the cavity mirrors. It is observed that mode-locking has close relations with fiber length, Yb-doped concentration and pump power. Such kind of lasers provide a new method to generate mode-locked pulses.

    Tools

    Get Citation

    Copy Citation Text

    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Study of Self Mode-Locking in Q-Switched and Continuous Working Yb-Doped Fiber Laser[J]. Collection Of theses on high power laser and plasma physics, 2005, 3(1): 873

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Aug. 16, 2004

    Accepted: --

    Published Online: Jun. 1, 2007

    The Author Email: (fengxiaoxing@mail.siom.ac.cn)

    DOI:

    Topics