EP0591941A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

An optical waveguide component and a manufacturing method therefor

Assignee: Furukawa Electric Co Ltd

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Filing: 1993-10-06

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Granted: —

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Expires: 2013-10-06

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Abstract

Abstract Provided is an optical waveguide component which has end faces to be connected with optical fiber connectors by means of guide pins, comprising an optical waveguide component body formed having an optical waveguide core portion, and a resin mold portion covering all the faces of the optical waveguide component body except the end faces, each end face of the resin mold portion being formed having guide pin holes with the optical waveguide core portion used as a positioning reference. Since the guide pin holes for connection with the optical fiber connectors are formed in the resin mold portion which covers the optical waveguide component body, the guide pin holes and a substrate can be restrained from being broken even though they are subjected to a load after connection. Marker portions for the arrangement of the guide pins, unlike conventional ones, need not be deep grooves in the upper surface of a cladding portion. Even in the case of a component whose optical waveguide core portion has a two-dimensional pattern, therefore, the marker portions can be formed without cutting the core pattern into pieces.

Inventors

👤 Toshihiko c/o The Furukawa Electric Co. Ltd Ohta
👤 Takashi c/o The Furukawa Electric Shigematsu
👤 Takeo c/o The Furukawa Electric Co. Ltd. Shimizu
👤 Shiro c/o The Furukawa Electric Co. Ltd Nakamura

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-11-06 01:30

CPC Classifications

G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3865; G02B6/26; G02B6/30; G02B6/3873

Claims Analysis

Total Claims: 3

Claim 1

Independent Claim 75 words

An optical waveguide component which has end faces to be connected with optical fiber connectors by means of guide pins, comprising: an optical waveguide component body formed having an optical waveguide core portion; and a resin mold portion formed covering all the faces of the body except the end faces, each end face of the resin mold portion being formed having guide pin holes with the optical waveguide core portion used as a positioning reference.

Claim 2

Independent Claim 159 words

A method for manufacturing an optical waveguide component, comprising steps of: forming an optical waveguide component body by forming a cladding portion on the surface of a substrate and then bonding and fixing a hold-down plate member on the cladding portion or the back of the substrate, the cladding portion having an optical waveguide core portion embedded therein; forming marker portions on the hold-down plate member of the optical waveguide component body with the optical waveguide core portion used as a positioning reference; injecting a molding resin into a mold after loading the optical waveguide component body into the mold, the mold having cores for guide pins arranged with the marker portions used as positioning references; and taking out the resulting cast article from the mold and removing the cores, thereby forming guide pin holes in each end face of a resin mold portion covering all the faces of the optical waveguide component body except both end faces thereof.

Claim 3

Independent Claim 179 words

A method for manufacturing an optical waveguide component, comprising steps of: arranging guide pins and optical fiber ferrules, having optical fibers set therein, at the upper portion of a mold so as to be positioned with respect to one another, the mold having at least three pin rods capable of fine motion at the bottom thereof; placing an optical waveguide component body, having an optical waveguide core portion embedded therein, on the at least three pin rods in a manner such that the end faces of the optical waveguide core portion are opposed to the respective end faces of the optical fiber ferrules; injecting a molding resin into the mold after finely adjusting the motion of the pin rods to align the optical waveguide core portion with the optical fibers in the optical fiber ferrules; and taking out the resulting cast article from the mold and removing the guide pins, thereby forming guide pin holes in each end face of a resin mold portion covering all the faces of the optical waveguide component body except both end faces thereof.

References Cited (Backward Citations)

JPS62276513A Cited

JPH01291204A Cited

JPH02251918A Cited

EP0458608A1 Cited

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