• Chinese Journal of Lasers
  • Vol. 39, Issue 6, 602006 (2012)
Zhang Cheng*, Luo Zhengqian, Wang Jinzhang, Zhou Min, Xu Huiying, and Cai Zhiping
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  • [in Chinese]
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    DOI: 10.3788/cjl201239.0602006 Cite this Article Set citation alerts
    Zhang Cheng, Luo Zhengqian, Wang Jinzhang, Zhou Min, Xu Huiying, Cai Zhiping. Dual-Wavelength Mode-Locked Yb-Doped Fiber Laser Based on the Interaction of Graphene and Fiber-Taper Evanescent Field[J]. Chinese Journal of Lasers, 2012, 39(6): 602006 Copy Citation Text show less

    Abstract

    A dual-wavelength passively mode-locked Yb-doped fiber laser (YDFL) based on the interaction of graphene and fiber-taper evanescent field is reported. Using optical evanescent-light deposition technique, graphene-polymer nanocomposites in aqueous suspension are coated onto taper waist region. The graphene-based tapered-fiber as a saturable absorber has the advantages of flexibility, all-fiber configuration, and high optical damage threshold. Based on the saturable absorption of this graphene-based component and the cavity-birefringent filtering characteristics, the stable dual-wavelength mode-locked operation is obtained, by properly adjusting the polarization state of the laser cavity. The two mode-locked wavelengths of YDFL are 1034.77 nm and 1038.85 nm, and the mode-locked repetition rate is 1.09 MHz at the second harmonic frequency, and the intracavity pulse energy can reach 35 nJ.
    Zhang Cheng, Luo Zhengqian, Wang Jinzhang, Zhou Min, Xu Huiying, Cai Zhiping. Dual-Wavelength Mode-Locked Yb-Doped Fiber Laser Based on the Interaction of Graphene and Fiber-Taper Evanescent Field[J]. Chinese Journal of Lasers, 2012, 39(6): 602006
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