Abstract

Large scale semiconductor laser networks are highly relevant systems, essential for fundamental investigations and for multiple technological applications. In the field of nonlinear network dynamics, semiconductor lasers are one of the most-studied model systems. In information processing, networks of coupled lasers are highly attractive for the implementation of neuro-inspired computing¹ or all-optical Ising-machines². Arrays of phase-locked lasers would boost the brightness of material-processing systems. Regardless of this broad interest, no scheme for scalable optical networks exists which provides control over essential parameters such as the network's coupling topology. As a consequence, experimental results are lacking. We report on a novel scheme based on diffractive coupling, allowing for the formation optical networks consisting of large numbers of optical emitters with adjustable coupling weights. Our scheme is scalable up to millimeter sized laser arrays.

© 2015 IEEE