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  • Received: Oct. 28, 2019

    Accepted: Mar. 1, 2020

    Posted: Apr. 14, 2020

    Published Online: Apr. 15, 2020

    The Author Email: Shixiang Xu (, Han Zhang (

    DOI: 10.3788/COL202018.041405

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    Hualong Chen, Xiantao Jiang, Shixiang Xu, Han Zhang. Recent progress in multi-wavelength fiber lasers: principles, status, and challenges[J]. Chinese Optics Letters, 2020, 18(4): 041405

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Chinese Optics Letters, Vol. 18, Issue 4, 041405 (2020)

Recent progress in multi-wavelength fiber lasers: principles, status, and challenges 

Hualong Chen1, Xiantao Jiang1,2, Shixiang Xu1,*, and Han Zhang1,**

Author Affiliations

  • 1SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, Collaborative Laboratory of 2D Materials for Optoelectronic Science and Technology of Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
  • 2College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China


In recent years, multi-wavelength fiber lasers play a significant role in plenty of fields, ranging from optical communications to mechanical processing and laser biomedicine, owing to their high beam quality, low cost, and excellent heat dissipation properties. Benefitting from increasing maturity of optical elements, the multi-wavelength fiber laser has made rapid developments. In this review, we summarize and analyze diverse implementation methods covering continuous wave and pulsed fiber lasers at room temperature conditions: inserting an optical filter device and intensity-dependent loss structure in the resonant cavity, and applying ultrafast nonlinear optical response of materials and a dual-cavity structure. Finally, future challenges and perspectives of the multi-wavelength fiber laser are discussed and addressed.


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