Patent ID: 11194087

Abstract:
A waveguide coupler may be coupled to a multi-beam light source, such as an array of superluminescent light-emitting diodes. The waveguide coupler includes a substrate having an end facet and a surface, e.g. a top flat surface, adjoining the end facet. At least one tilted reflector is supported by the substrate. A plurality of waveguides supported by the substrate extend between the end facet and the at least one tilted reflector. The at least one tilted reflector is configured to redirect light propagating in the plurality of waveguides to the surface of the substrate. In this manner, the waveguide coupler may provide an array of surface emission points on a substrate. All the surface emission points are disposed in one plane and may be suitably configured for subsequent joint collimation for use e.g. in a scanning projector display.