Chaotic optical communication with fast chaotic pulsing semiconductor lasers is experimentally demonstrated. Both a pulse stream at a 500-MHz repetition rate and a pseudorandom bit sequence at a 2.5-Gbit/s bit rate are successfully transmitted. The quality of synchronization in a chaos-modulation scheme is examined. The quality of message recovery is correlated to the quality of chaos synchronization.
© 2001 Optical Society of America
S. Tang and J. M. Liu, "Message encoding–decoding at 2.5 Gbits/s through synchronization of chaotic pulsing semiconductor lasers," Opt. Lett. 26, 1843-1845 (2001)