National Institute of Advanced Industrial Science and Technology

Kyocera Corporation

Takeru Amano

Akihiro Noriki

Masatoshi Tsunoda

A circuit board () has a first surface (). A semiconductor chip () (first semiconductor chip) is located at the first surface side () of the circuit board (). An insulating layer () covers the first surface () of the circuit board () and the semiconductor chip (). A conductive path () (first conductive path) is electrically connected to the semiconductor chip () and extends in the insulating layer (). A waveguide () is optically coupled to the semiconductor chip () and extends in the insulating layer ().

Opto-electronic integrated circuit and computing apparatus

Provided is an optical connector used for connecting an optical waveguide substrate and an optical-fiber connector member, where the optical connector comprises a plurality of positioning structures, each having a cylindrical hole for inserting another end of a pin which has an end inserted into the connector member, and a groove formed on a second surface perpendicular to a first surface on which an open end of the hole is located, and where the groove and the hole are continuous, the groove has an arc-shaped cross section, and a center of a circle formed by a cross section of the hole and a center of an arc formed by the cross section of the groove are identical, and when the optical connector is coupled to the optical waveguide substrate that comprises a plurality of protrusions having a rectangular cross section, in each of the plurality of positioning structures, at least two corners of a corresponding protrusion among the plurality of protrusions are supported by an inner wall of the groove.

Optical connector and apparatus equipped therewith

An optical circuit includes a substrate, a waveguide, and a mirror. The substrate includes a first surface. The waveguide includes a first core. The first core is formed of a semiconductor material. The waveguide is over a first surface of the substrate. The mirror reflects light emitted from the waveguide in a direction away from the first surface of the substrate. The mirror is a concave mirror. The waveguide includes a region that functions as an SSC.

Optical circuit and optical device

There is provided a semiconductor light-emitting element and a method of producing the same including high density and high quality quantum dots emitting light at a wavelength of 1.3 &#x3bc;m. A semiconductor light-emitting element has a first GaAs layer, a second InAs thin film layer having the plurality of InAs quantum dots formed on the first GaAs layer, a third InGaAs layer formed on the second InAs thin film layer having the plurality of InAs quantum dots, and a fourth GaAs layer formed on the third InGaAs layer, wherein the As source is As.

Growing community of inventors

Ibaraki, Japan

Takeru Amano