We examine the mutual coherence and phase dynamics of two solid-state lasers, generated adjacent to each other in a single Nd: YAG rod. The coupling of the lasers is varied by changing the separation of the pump beams. A model is formulated to interpret the experimental results, and theoretical predictions are obtained that are in excellent agreement with the measurements. PACS number(s): 42.60.v, 42.55.Rz, 42.55.Px I

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We investigate correlations of the intensity fluctuations of two-dimensional arrays of nonidentical, locally coupled lasers, numerically and experimentally. We find evidence of a power-law dependence of spatial correlations as a function of laser pair distance (or coupling strength) near the phase-locking threshold.

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