Patent ID: 9407371
Filing Date: 2016-08-02
CPC Classification: G02B,H04B,H04J

Claim Text:
1. An optical multiplexer/demultiplexer comprising: at least one input waveguide that has an input part at one end; a first slab waveguide of which one end is connected to the other end of the input waveguide; an arrayed waveguide group of which one end is connected to the other end of the first slab waveguide, the arrayed waveguide group having a plurality of waveguides; a second slab waveguide of which one end is connected to the other end of the arrayed waveguide group; and at least one output waveguide of which one ends are connected to the other end of the second slab waveguide and the other ends respectively have output parts, wherein each of the waveguides of the arrayed waveguide group is configured as an S-shaped waveguide having: a first bent part of which one end is connected to the first slab waveguide, and a waveguide extending direction changes 180 degrees or more; and a second bent part of which one end is connected to the other end of the first bent part, the other end is connected to the second slab waveguide, and a waveguide extending direction changes 180 degrees or more in a direction opposite to a direction of the change of the first bent part.