Sumitomo Electric Industries, Limited

Kaoru Oomori

Takashi Kojima

An optical apparatus includes: a semiconductor optical device integrating an optical coupler, an optical element, and an electrical circuit; and a printed circuit board including a main body and a metal piece. The body has first and second openings. The first opening, the metal piece and the second opening are arranged in a direction of a first axis. The first and second openings extend from the front and back faces of the body along the direction to the first and second faces of the metal piece, respectively. The metal piece is supported by the body. The semiconductor optical device is mounted on the first face of the metal piece in the first opening. The body has a supporting face connecting the first side of the first opening with the second side of the second opening and supporting the second face of the metal piece in the first opening.

Optical device, printed circuit board

A printed circuit board includes a main body of laminate structures, and a metal piece. The main body has a first opening and a second opening. The metal piece is held by the laminate structures of the main body. The metal piece has a first face and a second face opposite to the first face. The first opening and the second opening respectively extend to the first face and the second face of the metal piece. A semiconductor optical device can be mounted on the first face of the metal piece, in the first opening.

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Yokohama, Japan

Kaoru Oomori