Ferrule, optical connector, and method for manufacturing optical connector

The ferrule design with grooves and continuous internal spaces addresses the issue of inadequate material filling in thin-diameter optical fibers, ensuring uniform fiber arrangement and preventing optical performance degradation.

JP2026031205APending Publication Date: 2026-02-24SUMITOMO ELECTRIC INDUSTRIES LTD
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Patent Information

Application Number
JP2024134585
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-09
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

The reduction in pitch of optical fibers and fiber holes in ferrules due to thinner coating diameters leads to increased flow resistance and inadequate material filling, resulting in suboptimal formation of optical connectors, which can degrade optical performance.

Method used

A ferrule design with grooves and continuous internal spaces that allow for larger, open areas for optical fiber placement, reducing the need for filling narrow spaces and ensuring uniform material distribution during manufacturing.

Benefits of technology

Prevents degradation of optical characteristics by ensuring proper material filling and consistent fiber arrangement, maintaining optimal optical performance.

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Abstract

To provide a ferrule, an optical connector, and a manufacturing method of the optical connector capable of preventing deterioration of optical characteristics.SOLUTION: The ferrule includes a front end surface and a rear end surface located opposite to each other in a first direction, a first main surface and a second main surface located opposite to each other in a second direction intersecting the first direction, a plurality of grooves arranged in a third direction intersecting the first direction and the second direction between the front end surface and the rear end surface and each extending along the first direction, and an internal space formed on the plurality of grooves. An end of each of the plurality of grooves opens in the front end face. The internal space is continuous in the third direction and opens at the first main surface and the front end surface.SELECTED DRAWING: Figure 4
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Citation Information

Patent Citations

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    JP2006119622A