Synchronization of two unidirectionally coupled multimode semiconductor lasers

摘要

The synchronization of two unidirectionally coupled multimode semiconductor lasers was reported in the feedback/injection configuration. The transmitter was subjected to a weak-to-moderate optical feedback. Multimode chaotic output exhibited antiphase dynamics and multiple coexisting attractors. Results showed that the antiphase dynamics eliminated the need for modal output synchronization. The possibility of synchronization collapsed for identical lasers operating with identical or different parameters.