Patent ID: 11955772
Assignee: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 14:
15. The semiconductor light emitting element of claim 14, further comprising:
a left second optical loss layer;
a right second optical loss layer;
a low reflection film located on a rearward side of the element;
a high reflection film located on a forward side of the element;
a first waveguide extending forward from the low reflection film;
a second waveguide extending rearward from the high reflection film; and
a multi-mode optical interference waveguide (MMI) connecting the first waveguide to the second waveguide,
wherein the first optical loss layers extend forward from the low reflection film, sandwich the first waveguide, and terminate before reaching the MMI,
wherein the second optical loss layers extend rearward from the high reflection film, sandwich the second waveguide, and terminate before reaching the MMI.