Characteristics of the off-centered apertured mirror external cavity laser array

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Abstract
We present experimental data and a self-consistent analysis to explain the behavior of laser arrays in an off-centered apertured mirror external cavity. The eigensolutions of the composite cavity are superpositions of the orthonormal modes supported by the laser array itself. The thresholds, near- and far-field intensity distributions of the cavity modes are calculated for various mirror positions and widths. Good agreement is obtained between the calculations and the experimental data.