• Chinese Optics Letters
  • Vol. 19, Issue 8, 081902 (2021)
Ximei Liu1, Mengli Liu1, Yaorong Wang1, Kai Huang1, Ming Lei1, Wenjun Liu1、2、*, and Zhiyi Wei2
Author Affiliations
  • 1State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 2Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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    Abstract

    Recent years have witnessed the exploration of fiber laser technology focused on numerous pivotal optoelectronic applications from laser processing and remote sensing to optical communication. Here, using cobalt oxyfluoride (CoOF) as the nonlinear material, a 156 fs mode-locked fiber laser with strong stability is obtained. The rapid thermal annealing technique is used to fabricate the CoOF, which is subsequently transferred to the tapered region of the microfiber to form the effective pulse modulation device. CoOF interacts with the pulsed laser through the evanescent field to realize the intracavity pulse shaping, and then the stable mode-locked pulse is obtained. The mode-locked operation is maintained with the pulse duration of 156 fs and repetition rate of 49 MHz. In addition, the signal-to-noise ratio is about 90 dB. Those experimental results confirm the attractive nonlinear optical properties of CoOF and lay a foundation for the ultrafast application of low-dimensional transition metal oxides.
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    Ximei Liu, Mengli Liu, Yaorong Wang, Kai Huang, Ming Lei, Wenjun Liu, Zhiyi Wei. Mode-locked all-fiber laser with high stability based on cobalt oxyfluoride[J]. Chinese Optics Letters, 2021, 19(8): 081902
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    Category: Nonlinear Optics
    Received: Dec. 21, 2020
    Accepted: Feb. 2, 2021
    Posted: May. 20, 2021
    Published Online: May. 25, 2021
    The Author Email: Wenjun Liu (jungliu@bupt.edu.cn)