Patent ID: 11953726
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical device comprising:
a first waveguide extending in a first direction; and
a second waveguide connected to the first waveguide, the second waveguide including
a first mirror having a first reflecting surface,
a second mirror having a second reflecting surface facing the first reflecting surface, and
an optical waveguide layer between the first mirror and the second mirror, that contains a portion of the first waveguide including a leading end,

wherein
at least either the first waveguide or the second waveguide has one or more gratings in a part of a connection region in which the first mirror, the second mirror, and the first waveguide overlap one another when seen from an angle parallel with a direction perpendicular to the first reflecting surface, and
the one or more gratings is at a distance that is longer than at least either a thickness of the first mirror or a thickness of the second mirror in the first direction from an end of the first mirror or the second mirror that is in the connection region.