Title :
Anticipating synchronization based on optical injection-locking in chaotic semiconductor lasers
Author :
Kusumoto, Kenji ; Ohtsubo, Junji
Author_Institution :
Fac. of Eng., Shizuoka Univ., Hamamatsu, Japan
Abstract :
Numerical studies for anticipating chaos synchronization in semiconductor lasers with optical feedback are presented. Anticipating chaos synchronization in a delay-differential system is believed to occur when all chaos parameters between the two systems are perfectly coincident with each other. However, we find new schemes of anticipating chaos synchronization when the parameters between the two systems have mismatches. Under these conditions, the time lag between the two laser outputs is equal to that of anticipating chaos synchronization, but the physical origin of the phenomenon comes from optical injection-locking or amplification in laser systems. We show the evidence of such chaotic synchronization using trajectories in the phase space of the phase difference and the carrier density in the laser oscillations.
Keywords :
carrier density; chaotic communication; laser feedback; optical chaos; optical communication; semiconductor lasers; synchronisation; time series; carrier density; chaos synchronization; chaotic semiconductor lasers; chaotic time series; delay-differential system; laser oscillations; optical feedback; optical injection-locking; phase difference; phase space; secure communications; time lag; Chaos; Chaotic communication; Frequency synchronization; Laser feedback; Laser theory; Nonlinear optics; Optical feedback; Optical receivers; Optical transmitters; Semiconductor lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2003.819558
