Abstract
The dynamics of two mutually delay-coupled semiconductor lasers has been frequently studied experimentally, numerically, and analytically either for weak or strong detuning between the lasers. Here, we present a systematic numerical investigation spanning all detuning ranges. We report high-resolution stability diagrams for wide ranges of the main control parameters of the laser, as described by the Lang–Kobayashi model. In particular, we detail the parameter influence on dynamical performance and map the distribution of chaotic pulsations and self-generated periodic spiking with arbitrary periodicity. Special attention is given to the unfolding of regular pulse packages for both symmetric and non-symmetric configurations with respect to detuning. The influence of the delay –time on the self-organization of periodic and chaotic laser phases as a function of the coupling and detuning is also described in detail.
Highlights
The investigation of mutually coupled semiconductor lasers has attracted much interest in the last few years [1,2,3]
Of particular interest is the understanding of a pair of mutually delay-coupled lasers, since such systems display a plethora of useful and intriguing behaviors like localized synchronization [14], quasiperiodicity [15], couplinginduced synchronized chaotic dynamics and spontaneous symmetry–breaking [16, 17], chaotic achronal synchronization [18], bubbling [19], and many others [1, 2]
For the case of a single laser with delayed feedback from an external cavity, which is analogous to the symmetric configuration we are considering here, this sequence of transitions was explained before [29]: the increasing of τ leads to the creation and destabilization of external cavity modes (ECMs), a solution with constant amplitude and inversion, and a linear variation of the phase with time, which strongly influences the system dynamics
Summary
Any further distribution of The dynamics of two mutually delay-coupled semiconductor lasers has been frequently studied this work must maintain experimentally, numerically, and analytically either for weak or strong detuning between the lasers. Attribution to the author(s) and the title of Here, we present a systematic numerical investigation spanning all detuning ranges. Resolution stability diagrams for wide ranges of the main control parameters of the laser, as described by the Lang–Kobayashi model. We detail the parameter influence on dynamical performance and map the distribution of chaotic pulsations and self-generated periodic spiking with arbitrary periodicity. The influence of the delay – time on the self-organization of periodic and chaotic laser phases as a function of the coupling and detuning is described in detail
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