Abstract
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;.
| Original language | English |
|---|---|
| Pages (from-to) | 17940-17950 |
| Number of pages | 11 |
| Journal | Optics Express |
| Volume | 29 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Jun 2021 |
Keywords
- Laser coupling
- Optical feedback
- Optical networks
- Ring networks
- Semiconductor lasers
- Vertical cavity surface emitting lasers
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