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  • Received: May. 20, 2015

    Accepted: Jun. 30, 2015

    Posted: Jan. 23, 2019

    Published Online: Sep. 14, 2018

    The Author Email: Jiawei Mei (

    DOI: 10.3788/COL201513.091403

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    Jiawei Mei, Xiaosheng Xiao, Changxi Yang. 1  μm wavelength swept fiber laser based on dispersion-tuning technique[J]. Chinese Optics Letters, 2015, 13(9): 091403

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Chinese Optics Letters, Vol. 13, Issue 9, 091403 (2015)

1  μm wavelength swept fiber laser based on dispersion-tuning technique

Jiawei Mei*, Xiaosheng Xiao, and Changxi Yang

Author Affiliations

  • Department of Precision Instruments, Tsinghua University, Beijing 100084, China


We report a wavelength swept fiber laser at the 1?μm region based on an actively mode-locked dispersion-tuning technique. The ring-cavity laser uses a 70?cm ytterbium-doped fiber as a gain medium. Mode locking is achieved by the direct modulation of the amplitude modulator, and a 1000??m single-mode fiber is used to provide the desired intracavity dispersion. By sine-modulating the modulation frequency, a wavelength swept laser with a range of 30??nm can be achieved at a sweeping rate of 50?Hz. The characteristics of the laser, such as its single-wavelength tuning range, tuning sensitivity, static linewidth and sweeping rate, are also studied experimentally.