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Laser & Optoelectronics Progress, Volume. 59, Issue 3, 0314006(2022)

Generation of Wideband Chaos Without Time-Delay Signature via Cascaded Chirped Fiber Bragg Grating Feedback

Xiangyu Wang1,2, Longsheng Wang1,2, Yuanyuan Guo1,2, Zhiwei Jia1,2, Anbang Wang1,2、*, and Yuncai Wang3,4
Author Affiliations
  • 1Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education (Taiyuan University of Technology), Taiyuan , Shanxi 030024, China
  • 2College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan , Shanxi 030024, China
  • 3School of Information Engineering, Guangdong University of Technology, Guangzhou , Guangdong 510006, China
  • 4Guangdong Provincial Key Laboratory of Photonics Information Technology, Guangzhou , Guangdong 510006, China
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    AbstractGet PDF(in Chinese)
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    Figures & Tables(7)
    Experimental setup for generating wideband and without time-delay signature chaos

    Fig. 1. Experimental setup for generating wideband and without time-delay signature chaos

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    Chaotic signal output by single CFBG feedback laser atκf=3.47. (a) Optical spectrum; (b) spectrum; (c) time series; (d) autocorrelation

    Fig. 2. Chaotic signal output by single CFBG feedback laser atκf=3.47. (a) Optical spectrum; (b) spectrum; (c) time series; (d) autocorrelation

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    Bandwidth and TDS as a function of optical feedback strength at Δλ=-0.19 nm. (a) 3 dB bandwidth; (b) TDS

    Fig. 3. Bandwidth and TDS as a function of optical feedback strength at Δλ=-0.19 nm. (a) 3 dB bandwidth; (b) TDS

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    Bandwidth and TDS as a function of wavelength detuning atκf=3.47. (a) 3 dB bandwidth; (b) TDS

    Fig. 4. Bandwidth and TDS as a function of wavelength detuning atκf=3.47. (a) 3 dB bandwidth; (b) TDS

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    Chaotic signal output from laser subjected to cascaded CFBG feedback at κf=3.55. (a) Optical spectrum; (b) spectrum; (c) time series; (d) autocorrelation

    Fig. 5. Chaotic signal output from laser subjected to cascaded CFBG feedback at κf=3.55. (a) Optical spectrum; (b) spectrum; (c) time series; (d) autocorrelation

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    Bandwidth and TDS as a function of optical feedback strength at Δλ=-0.20 nm. (a) 3 dB bandwidth; (b) TDS

    Fig. 6. Bandwidth and TDS as a function of optical feedback strength at Δλ=-0.20 nm. (a) 3 dB bandwidth; (b) TDS

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    Bandwidth and TDS as a function of wavelength detuning at κf=3.55. (a) 3 dB bandwidth; (b) TDS

    Fig. 7. Bandwidth and TDS as a function of wavelength detuning at κf=3.55. (a) 3 dB bandwidth; (b) TDS

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    Xiangyu Wang, Longsheng Wang, Yuanyuan Guo, Zhiwei Jia, Anbang Wang, Yuncai Wang. Generation of Wideband Chaos Without Time-Delay Signature via Cascaded Chirped Fiber Bragg Grating Feedback[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0314006

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Apr. 22, 2021

    Accepted: May. 18, 2021

    Published Online: Jan. 24, 2022

    The Author Email: Wang Anbang (wanganbang@tyut.edu.cn)

    DOI:10.3788/LOP202259.0314006

    Topics

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