Optical and Quantum Electronics

, 41:137

Synchronization of chaotic semiconductor lasers by optical injection with random phase modulation


    • NTT Communication Science Laboratories
    • Physics DepartmentLancaster University
  • Peter Davis
    • NTT Communication Science Laboratories
  • Kazuyuki Yoshimura
    • NTT Communication Science Laboratories
  • Atsushi Uchida
    • Department of Information and Computer SciencesSaitama University

DOI: 10.1007/s11082-009-9333-y

Cite this article as:
Goto, S., Davis, P., Yoshimura, K. et al. Opt Quant Electron (2009) 41: 137. doi:10.1007/s11082-009-9333-y


It is shown that identical synchronization of two chaotic semiconductor lasers can be achieved by injection of a common optical signal with randomly varying phase. An optical signal with randomly modulated phase is injected into two semiconductor lasers which have chaotic oscillations due to optical feedback. Strong correlation between complex intensity oscillations of the two lasers is observed even though the intensity of the common injection signal is constant. Characteristic properties of this type of synchronization are shown, in particular, the dependence of the synchronization threshold on the injection strength and the rate of phase modulation, and the dependence of the intensity correlation on the difference in phase of optical feedback.


Semiconductor lasersLaser diodesDynamics of nonlinear optical systemsOptical instabilitiesOptical chaos and complexityOptical spatio-temporal dynamicsSynchronizationCoupled oscillators


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© Springer Science+Business Media, LLC. 2009