Patent ID: 11971579
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A multi-mode interferometric optical waveguide device, comprising:
a multi-mode interferometric optical waveguide which includes a reflective portion;
a first single-mode waveguide; and
a second single-mode waveguide, wherein
the reflective portion includes a first reflective surface,
the multi-mode interferometric optical waveguide is a 1×1 multi-mode interferometric optical waveguide,
the multi-mode interferometric optical waveguide has a first end, a second end opposite the first end, a first side connecting the first end and the second end, and a second side opposite the first side, the second side connecting the first end and the second end,
the first single-mode waveguide is connected to the first end,
the first reflective surface is disposed at the second end,
the second single-mode waveguide is opposite the first reflective surface, and connected to the first side at a connecting portion, and
when light enters the first single-mode waveguide, the light is self-imaged in the connecting portion.