"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Numerical investigationson wavelength-tunable and bandwidth-controllable chaotic signal generation based on a WRC-FPLD subject to FBGfiltered feedback

CHUN-XIAHU1,2, UANG-QIONGXIA1, TAODENG1, ELUMALAI JAYAPRASATH1, ZAI-FUJIANG1, WEN-YANYANG1,3, ZHENG-MAOWU1,*

Affiliation

  1. School of Physics, Southwest University, Chongqing400715, China
  2. College of Mobile Telecommunications Chongqing University of Posts and Telecom,Chongqing401520, China
  3. School of Mathematics and Physics, Chongqing University of Science and Technology, Chongqing401331, China

Abstract

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS Vol. 22, No. 9-10, September –October 2020, p. 477 -482Numerical investigationson wavelength-tunable and bandwidth-controllable chaotic signal generation based on a WRC-FPLD subject to FBGfiltered feedbackCHUN-XIAHUa,b, GUANG-QIONGXIAa, TAODENGa, ELUMALAIJAYAPRASATHa, ZAI-FUJIANGa,WEN-YANYANGa,c, ZHENG-MAOWUa,*aSchool of Physics, Southwest University, Chongqing400715, ChinabCollege of Mobile Telecommunications Chongqing University of Posts and Telecom,Chongqing401520, China cSchool of Mathematics and Physics, Chongqing University of Science and Technology, Chongqing401331, ChinaIn this paper, we propose a modified multi-mode rate equationmodel to numerically study the chaotic dynamics of a weak resonant-cavity Fabry-Perot laser diode (WRC-FPLD) subject to fiber Bragg grating (FBG) feedback. The simulated results show that, by adjusting the Bragg wavelength of FBG, different longitudinal mode of the WRC-FPLD can be chosen to become alasing mode. Under suitable feedback strength, such a lasing mode can operate at a chaotic state, and thebandwidth of the chaotic signalincreases firstly and then decreaseswith the increase of k,which is consistent with our previously reported experimental results. Furthermore, the influences of the reflected bandwidth of FBG and the frequency detuning between the central wavelength of FBG and the lasing longitudinal mode on the chaotic bandwidth are investigated systematically, and the results demonstrate that the wavelength and bandwidth of the chaotic signal can be controlled to a certain extent throughadjusting the related parameters of FBG.

Keywords

Weak resonant-cavity Fabry-Perot laser diode (WRC-FPLD),Chaossignal,Wavelength tunability, Bandwidth controllability, Fiber Bragg grating (FBG), Filtered feedbac.

Submitted at: Oct. 15, 2019
Accepted at: Oct. 22, 2020

Citation

CHUN-XIAHU, UANG-QIONGXIA, TAODENG, ELUMALAI JAYAPRASATH, ZAI-FUJIANG, WEN-YANYANG, ZHENG-MAOWU, Numerical investigationson wavelength-tunable and bandwidth-controllable chaotic signal generation based on a WRC-FPLD subject to FBGfiltered feedback, Journal of Optoelectronics and Advanced Materials Vol. 22, Iss. 9-10, pp. 477-482 (2020)