Sumitomo Electric Industries, Limited

Sumitomo Electric Device Innovations, Inc.

Kazuaki Mii

Hiroshi Hara

Fumihiro Nakajima

Tomomi Sano

Toshio Takagi

Kazunori Tanaka

Kyohei Maekawa

Ryouta Teranishi

Keitaro Koguchi

Toru Hirayama

An optical module of the present disclosure includes an optical element, a first optical component that is optically coupled to the optical element, a second optical component that is optically coupled to the first optical component, a receptacle to which an optical fiber that transmits the incident light to the second optical component is connected, a terminal unit that electrically outputs an output signal of the optical element to the outside, and a package that accommodates the optical element, the first optical component, and the second optical component and is provided with the receptacle on a first surface and the terminal unit on a second surface facing the first surface, wherein the wiring extends from the first surface side to the second surface side and electrically connects the second optical component and the terminal unit.

Optical module

A package for an optical receiver module is disclosed. The package includes a housing having electrically conductive walls including a rear wall and a pair of side walls, and a feed-through provided in the rear wall. The feed-through includes an internal portion having an upper rear face and a lower rear face, and an external portion protruding from the upper rear face and the lower rear face outwardly and having a top face and/or a back face continuous to the upper rear face and/or the lower rear face of the internal portion, a first top face, a second back face, and a pair of side faces, the rear face and the side faces connecting the first top face with the second back face, the first top face including DC lines, the second back face including transmission lines, and the transmission lines.

Package for optical receiver module

A wavelength de-multiplexing system that receives a wavelength multiplexed signal and generates electrical signals corresponding to the optical signals is disclosed. The optical receiver module includes a lens, a lens unit, and an optical de-multiplexer (O-DeMux). The lens converts the wavelength multiplexed signal into a quasi-collimated beam. The lens unit narrows a diameter of the quasi-collimated beam. The O-DeMux de-multiplexes the narrowed quasi-collimated beam coming from the lens unit by wavelength selective filters (WSFs) each having optical distances from the lens unit different from each other.

Wavelength de-multiplexing system and optical receiver module

A package for an optical receiver module is disclosed. The package includes a housing having electrically conductive walls including a rear and a pair of side walls, and a feed-through provided in the rear wall. The feed-through includes an internal portion, and an external portion protruding from the internal portion. The internal portion has a top face and a back face, the top face including ground lines, the back face including transmission lines with signal lines and ground lines.

A method to manufacture an optical module is disclosed, wherein the optical module has an optically active device on a lead frame and a lens co-molded with the active device and the lead frame by a transparent resin as positioning the lens with respect to the lead frame. The molding die of the present invention has a positioning pin to support the lens during the molding. Because the lead frame is aligned with the molding die, the precise alignment between the active device on the lead frame and the lens is not spoiled during the molding.

Growing community of inventors

Osaka, Japan

Kazuaki Mii