• Chinese Optics Letters
  • Vol. 19, Issue 9, 091203 (2021)
Bing Lü1、2, Wentao Zhang1、2、*, Wenzhu Huang1、2, and Fang Li1、2
Author Affiliations
  • 1College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
  • 2Optoelectronic System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
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    Abstract

    A full-open-cavity wavelength-tunable random fiber laser (WT-RFL) with compact structure and hundreds of picometers tuning range is proposed and demonstrated. A π fiber Bragg grating (FBG) is used in the WT-RFL as a filter to select lasing wavelengths. The two random Bragg grating arrays (RBGAs) and a section of high gain erbium-doped fiber result in a low lasing threshold and high stability. A numerical model to analyze the tunable characteristics is developed. The results show that the laser threshold is 22 mW, and the maximum peak-power fluctuation is 0.55 dB. To the best of our knowledge, it is the first time that a compact and full-open-cavity WT-RFL with two RBGAs and a π-FBG is proposed.
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    Bing Lü, Wentao Zhang, Wenzhu Huang, Fang Li. Random Bragg-grating-based wavelength-tunable random fiber laser with a full-open cavity[J]. Chinese Optics Letters, 2021, 19(9): 091203
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    Category: Instrumentation, Measurement, and Optical Sensing
    Received: Dec. 31, 2020
    Accepted: Mar. 4, 2021
    Posted: Jun. 3, 2021
    Published Online: Jun. 15, 2021
    The Author Email: Wentao Zhang (zhangwt@semi.ac.cn)