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US 7,889,963 B2Granted
Optical waveguide device and device for producing optical waveguide device
AssigneeMitsumi Electric Co., Ltd.
InventorKoki Sato
Life of this patent
Estimating the term…
Abstract
An optical waveguide device that is smaller in size and has higher impact resistance. The optical waveguide device (1) has a V-groove (14) formed in a groove forming surface (SF) at an end of a base board (10) where an optical waveguide section (11) is formed. An optical fiber element (22) is embedded by an adhesive layer (13) and connected to the base board (10) with an end of the optical fiber element (22) fitted in the V-groove (14).
Claims6
An optical waveguide device comprising:
- a substrate on which an optical waveguide is formed;
- a groove formed in a groove-forming face at an end of the substrate along a light transmitting direction of the optical waveguide, wherein a connection end of an optical fiber is fitted into the groove;
- and
- an adhesive layer provided on the groove-forming face of the substrate for embedding the connection end of the optical fiber such that the adhesive layer substantially covers an outer circumferential face of the optical fiber outside of the groove, wherein the adhesive layer has an upper face that is almost parallel to the groove-forming face of the substrate and is above the groove-forming face, the whole upper face of the adhesive layer is substantially flat, and the adhesive layer has a thickness such that the adhesive layer covers the outer circumferential face of the optical fiber outside of the groove.
1 more element
A method for producing an optical waveguide device, the method comprising:
- providing a substrate on which an optical waveguide is formed, wherein a groove is formed in a groove-forming face at an end of the substrate along a light transmitting direction of the optical waveguide;
- fitting a connection end of an optical fiber into the groove;
- and
- embedding the connection end of the optical fiber by an adhesive layer provided on the groove-forming face of the substrate such that the adhesive layer substantially covers an outer circumferential face of the optical fiber outside of the groove, wherein the adhesive layer has an upper face that is almost parallel to the groove forming face of the substrate and is above the groove-forming face, the whole upper face of the adhesive layer is substantially flat, and the adhesive layer has a thickness such that the adhesive layer covers the outer circumferential face of the optical fiber outside of the groove.
1 more element
Dependencies are inferred from the claim text.