Open AccessSynchronization of polarization chaos in mutually coupled free-running VCSELs
Author(s) -
Ziruo Wang,
Pu Li,
Zhiwei Jia,
Wenjie Wang,
Bingjie Xu,
K.A. Shore,
Yuncai Wang
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.425674
Subject(s) - physics , optics , laser linewidth , optical chaos , synchronization (alternating current) , semiconductor laser theory , polarization (electrochemistry) , injection locking , birefringence , coupling coefficient of resonators , laser , computer science , telecommunications , channel (broadcasting) , chemistry , resonator
We numerically demonstrate and analyze polarization chaos synchronization between two free-running vertical cavity surface emitting semiconductor lasers (VCSELs) in the mutual coupling configuration under two scenarios: parallel injection and orthogonal injection. Specifically, we investigate the effect of external parameters (the bias current, frequency detuning and coupling coefficient) and internal parameters (the linewidth enhancement factor, spin-flip relaxation rate, field decay rate, carrier decay rate, birefringence and dichroism) on the synchronization quality. Finally simulation results confirm that in the parallel injection, chaotic synchronization can reach a cross-correlation coefficient of 0.99 within a range of parameter mismatch ±12%. On the other hand, the chaos synchronization for orthogonal injection only reaches a cross-correlation coefficient of 0.95 within a range of parameter mismatch ±3%.