Sub-40 GHz Broadband Polarization Chaos Generation Using Mutually Coupled Free-Running VCSELs

Haofan Bian; Xiaomai Zhang; Pu Li; Zhiwei Jia; Li Ma; Bingjie Xu; Keith Alan Shore; Yuwen Qin; Yuncai Wang

doi:10.3390/photonics10020219

Photonics (Feb 2023)

Sub-40 GHz Broadband Polarization Chaos Generation Using Mutually Coupled Free-Running VCSELs

Haofan Bian,
Xiaomai Zhang,
Pu Li,
Zhiwei Jia,
Li Ma,
Bingjie Xu,
Keith Alan Shore,
Yuwen Qin,
Yuncai Wang

Affiliations

Haofan Bian: Guangdong Provincial Key Laboratory of Photonics Information Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
Xiaomai Zhang: Guangdong Provincial Key Laboratory of Photonics Information Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
Pu Li: Guangdong Provincial Key Laboratory of Photonics Information Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
Zhiwei Jia: Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
Li Ma: Science and Technology on Communication Laboratory, Institute of Southwestern Communication, Chengdu 610041, China
Bingjie Xu: Science and Technology on Communication Laboratory, Institute of Southwestern Communication, Chengdu 610041, China
Keith Alan Shore: School of Computer Science and Electronic Engineering, Bangor University, Wales LL57 1UT, UK
Yuwen Qin: Guangdong Provincial Key Laboratory of Photonics Information Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
Yuncai Wang: Guangdong Provincial Key Laboratory of Photonics Information Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China

DOI: https://doi.org/10.3390/photonics10020219
Journal volume & issue: Vol. 10, no. 2
p. 219

Abstract

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We propose a simple method to generate broadband polarization chaos using two mutually coupled free-running vertical-cavity surface-emitting lasers (VCSELs). Specifically, we quantitatively investigate the effect of critical external parameters (bias current, frequency detuning and coupling coefficient) on the polarization chaos bandwidth in the scenarios of parallel injection and orthogonal injection, and reveal the physical mechanism of bandwidth enhancement in two scenarios. Final simulation results show that the bandwidth of chaotic signals obtained from parallel and orthogonal injection can reach 35.15 GHz and 32.96 GHz, respectively.

Published in Photonics

ISSN: 2304-6732 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: http://www.mdpi.com/journal/photonics

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