Abstract

Semiconductor lasers subject to external perturbations often exhibit deterministic chaotic behaviour. Optical delayed self-feedback is a common way to induce chaotic laser emission. In recent years, chaotic semiconductor lasers have proven to be useful in a number of practical applications, ranging from chaos communications and secure key distribution to random bit generation or LIDAR systems [1]. In particular, chaos communications and secure key distribution rely on the synchronization or two or more lasers operating in the chaotic regime [2]. Thus, a high degree of synchronization is desired for practical applications.

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