We discuss the optical properties of a novel phase-coupled 8 × 8 grid contact vertical-cavity surface-emitting laser array. In addition to the usual out-of-phase array mode, we demonstrate for the first time to our knowledge in-phase surface-emitting laser-array coupling. Four array modes, (1, 1), (1, N), (N, 1), and (N, N) are characterized by comparing far-field distributions and spectra. We introduce a simple physical model to describe our experimental results.
© 1993 Optical Society of America
Original Manuscript: September 4, 1992
Published: March 1, 1993
Robert A. Morgan and Keisuke Kojima, "Optical characteristics of two-dimensional coherently coupled vertical-cavity surface-emitting laser arrays," Opt. Lett. 18, 352-354 (1993)