TY - JOUR

T1 - Synchronization of polarization chaos in mutually coupled free-running VCSELs

AU - Wang, Ziruo

AU - Li, Pu

AU - Jia, Zhiwei

AU - Wang, Wenjie

AU - Xu, Bingjie

AU - Shore, K. Alan

AU - Wang, Yuncai

PY - 2021/6/1

Y1 - 2021/6/1

N2 - 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 x00B1;12x0025;. 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 x00B1;3x0025;.

AB - 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 x00B1;12x0025;. 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 x00B1;3x0025;.

KW - Laser coupling

KW - Optical feedback

KW - Optical networks

KW - Ring networks

KW - Semiconductor lasers

KW - Vertical cavity surface emitting lasers

U2 - 10.1364/OE.425674

DO - 10.1364/OE.425674

M3 - Article

VL - 29

SP - 17940

EP - 17950

JO - Optics Express

JF - Optics Express

IS - 12

ER -