Optical connector, method for manufacturing optical connector, and method for manufacturing optical fiber

The optical connector achieves precise fiber positioning through protrusions and flat portions on the cladding of optical fibers, addressing misalignment issues and reducing connection loss.

JP2026028373APending Publication Date: 2026-02-20FUJIKURA LTD
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Patent Information

Application Number
JP2024130734
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-07
Publication Date
2026-02-20

AI Technical Summary

Technical Problem

In optical connectors, misalignment of optical fibers within fiber holes leads to mismatched core pitches, resulting in increased connection loss between the connector and the connection object.

Method used

The optical connector design includes optical fibers with protrusions on their claddings, which are inserted into fiber holes with matching polygonal shapes, ensuring precise positioning through contact between protrusions and flat portions with the ferrule, and optionally using an inclusion to enhance alignment.

Benefits of technology

This design allows for high-precision positioning of multiple optical fibers, reducing connection loss by maintaining accurate alignment and contact within the fiber holes.

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Abstract

To provide an optical connector capable of positioning a plurality of optical fibers inside a fiber hole with high accuracy, a method for manufacturing the optical connector, and a method for manufacturing the optical fiber.SOLUTION: The optical connector includes a plurality of optical fibers and a ferrule having fiber holes into which the plurality of optical fibers are inserted, each of the plurality of optical fibers has a core and a cladding surrounding the core, a protrusion is formed on an outer periphery of the cladding, and the protrusions of the plurality of optical fibers are in contact with each other inside the fiber holes.SELECTED DRAWING: Figure 3
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Citation Information

Patent Citations

  • Method for producing optical fiber end structure and optical fiber end structure

    JP2013125195A