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US 6,665,330 B1Granted
Semiconductor device having a semiconductor ring laser with a circularly formed ridge optical waveguide
AssigneeCanon Kabushiki Kaisha
InventorTakahiro Numai
Life of this patent
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Abstract
A semiconductor device having a semiconductor ring laser and a base member with an electrode. The semiconductor ring laser has a circularly formed ridge optical waveguide. A concave region exists at the inside or outside of the waveguide. An electrode layer is provided over the waveguide and concave region, and the electrode and the electrode layer are electrically connected to each other through a conductive member existing in the concave region.
Claims11
A semiconductor device comprising:
- a semiconductor ring laser having a circularly formed ridge optical waveguide having an active layer, and a concave portion located inside of the optical waveguide;
- and
- a base member having an electrode on a surface thereof,
- wherein an electrode layer is provided on the optical waveguide and the concave region, and the electrode and the electrode layer are electrically connected to each other through a conductive member existing in the concave region.
1 more element
Dependencies are inferred from the claim text.