Anticipating synchronization based on optical injection-locking in chaotic semiconductor lasers

• Published in: IEEE journal of quantum electronics Vol. 39; no. 12; pp. 1531 - 1536
• Main Authors: Kusumoto, K., Ohtsubo, J.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.12.2003; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Chaos; Chaos theory; Chaotic communication; Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics; Exact sciences and technology; Frequency synchronization; Fundamental areas of phenomenology (including applications); Laser feedback; Laser theory; Lasers; Mathematical models; Nonlinear optics; Optical feedback; Optical receivers; Optical transmitters; Optics; Oscillations; Physics; Semiconductor lasers; Semiconductor lasers; laser diodes; Synchronism; Synchronization; Optical injection; Semiconductor lasers; Optical feedback; Laser feedback; Optical chaos; Theoretical study; Numerical method; Injection locking; Synchronization; Carrier density; Phase space
• ISSN: 0018-9197; 1558-1713
• DOI: 10.1109/JQE.2003.819558

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.