We show in this paper that N-coupled lasers can be treated as a special case of N weakly coupled nonlinear oscillators. The dynamical behaviour can be described as the evolution on N-dimensional tori. We examine the simplest case of two elements and discuss some characteristics of the coupled laser system, which include the stability of the trivial solution, the stability of the inphase and out-of-phase solutions, and some symmetry considerations.
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Jiang et al. (1992) studied this question.
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