Synchronization of optical-feedback-induced chaos in semiconductor lasers by optical injection - art. no. 031802

We study the synchronization of feedback-induced chaos in semiconductor las ers by the optical injection scheme that consists of a transmitter laser wi th external optical feedback and a receiver laser with optical injection fr om the transmitter laser. The stable synchronization condition and the effe cts of the frequency detuning between the transmitter and the receiver lase rs are investigated using numerical simulation. The results show that posit ive and negative frequency detuning exert different influences on the synch ronization. A time lag between the waveforms of the transmitter and the rec eiver lasers in the case of a large frequency detuning is found and its exp erimental significance is commented on.