[OPTICAL REVIEW Vol. 8, No. 5 (2001) 351-357]
Synchronization of Chaotic Oscillations in Mutually Coupled Semiconductor Lasers
Hitoshi FUJINO1,2 and Junji OHTSUBO1,*
1Faculty of Engineering, Shizuoka University, 3-5-1, Johoku, Hamamatsu, 432-8561 Japan
(Received January 18, 2001; Accepted July 16, 2001)
Synchronization of chaotic oscillations in mutually coupled semiconductor lasers is experimentally investigated. Synchronization of chaotic outputs from mutually injected lasers is observed not only in low frequency fluctuation regimes but also in high frequency fluctuation regions on the nano-second time scale. It is shown that the synchronization of our results is based not on complete chaos synchronization but on injection phenomena in laser systems, so called generalized chaos synchronization.
Key words : chaos synchronization, semiconductor lasers, optical injection, low frequency fluctuations