Analysis of Phase Locking in Diffraction-Coupled Arrays of Semiconductor Lasers With Gain/Index Coupling

摘要

We develop an analytical model of the phase-locking mechanism for diffraction-coupled arrays of semiconductor lasers. While the phase-locking range is found to be limited by nonuniformities between the individual lasers, increasing the gain-index coupling can expand this range. Detailed computer simulations confirm these predictions. Recommendations are made for using arrays of surface-emitting lasers to improve the stability of phase locking.