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Chinese Journal of Lasers, Volume. 50, Issue 19, 1906001(2023)

Reflection Spectral Characteristics of Bragg Gratings Fabricated via Femtosecond Laser Phase Mask Technique

Xinran Dong1, Zian Wang1, Li Zeng2,3, and Xiaoyan Sun2,3、*
Author Affiliations
  • 1College of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha 410018, Hunan , China
  • 2State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, Hunan , China
  • 3State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, Hunan , China
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    AbstractGet PDF(in Chinese)
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    Schematic of FBG fabrication based on femtosecond laser phase mask technologue

    Fig. 1. Schematic of FBG fabrication based on femtosecond laser phase mask technologue

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    Influence of exposure time on FBG reflectance spectrum. (a) FBG reflectance spectra under different exposure time; (b) wavelength, (c) reflectivity, and (d) bandwidth versus exposure time

    Fig. 2. Influence of exposure time on FBG reflectance spectrum. (a) FBG reflectance spectra under different exposure time; (b) wavelength, (c) reflectivity, and (d) bandwidth versus exposure time

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    Influence of laser energy on FBG reflectance spectrum. (a) Wavelength, (b) reflectivity, and (c) bandwidth versus exposure time; (d) relationship between applied laser energy and required exposure time to achieve maximal reflectivity

    Fig. 3. Influence of laser energy on FBG reflectance spectrum. (a) Wavelength, (b) reflectivity, and (c) bandwidth versus exposure time; (d) relationship between applied laser energy and required exposure time to achieve maximal reflectivity

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    Reflection spectra of FBGs under different process conditions

    Fig. 4. Reflection spectra of FBGs under different process conditions

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    Xinran Dong, Zian Wang, Li Zeng, Xiaoyan Sun. Reflection Spectral Characteristics of Bragg Gratings Fabricated via Femtosecond Laser Phase Mask Technique[J]. Chinese Journal of Lasers, 2023, 50(19): 1906001

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    Paper Information

    Category: Fiber optics and optical communication

    Received: Sep. 1, 2022

    Accepted: Oct. 11, 2022

    Published Online: Oct. 18, 2023

    The Author Email: Sun Xiaoyan (sunxy@csu.edu.cn)

    DOI:10.3788/CJL221198

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology