Patent ID: 8958665
Filing Date: 2015-02-17
Classification: G02B,G02F,H04J

Abstract:
1. An optical device, comprising: a substrate; an arrayed waveguide grating provided on the substrate, the arrayed waveguide grating having first and second slabs; a plurality of first waveguides extending from the first slab, the plurality of first waveguides supplying respective first optical signals to the first slab; a plurality of second waveguides extending from the second slab, the plurality of second waveguides supplying respective second optical signals to the second slab; a third waveguide extending from the second slab, the third waveguide outputting a third optical signal from the second slab, the third optical signal including the first optical signals; a fourth waveguide extending from the first slab, the fourth waveguide outputting a fourth optical signal from the first slab, the fourth optical signal including the second optical signals; one or more first scattering devices optically coupled to a portion of an edge of the first slab between the plurality of first waveguides and the fourth waveguide; and one or more second scattering devices optically coupled to a portion of an edge of the second slab between the plurality of second waveguides and the third waveguide.