SEMICONDUCTOR LASER

摘要

A semiconductor laser (10) produces a plurality of spatially displaced emitting portions or cavities (33) in an active layer (16) of a semiconductor body acting as a waveguide for light wave propagation under lasing conditions. Various means (38) are disclosed to deflect and directly couple a portion of the optical wave propagation into one or more different spatially displaced emitting cavities to improve coherence and reduce beam divergence.