Pluggable Connector Latch Mechanism for Optical Module Testing

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Solution Overview

Problem

Existing cable connectors for optoelectronic modules lack the ability to be easily attached and removed, making modular level testing difficult.

Innovation Solution

A pluggable connector system that includes a clip to securely attach and detach a ferrule-based optical cable to an optoelectronic module without disassembling the module, allowing for easy engagement and disengagement of optical fibers with a lens assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cable connector is permanently attached to the optoelectronic module, then connection reliability is improved, but ease of operation for modular testing deteriorates

Engineering Contradiction:
Improveconnection reliabilityVSAvoidease of attachment and removal
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connector employs a latch mechanism that transitions between engaged and disengaged states, allowing the connection to be dynamically changed from permanent to removable as needed. The latch can be actuated to release the connector from the receptacle, enabling easy attachment and removal for modular testing while maintaining secure connection during operation.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the connector structure is simplified for easy attachment, then ease of operation is improved, but device complexity increases to achieve removable functionality

Engineering Contradiction:
Improveease of attachment and removalVSAvoidconnector structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The connector is divided into separate components including a connector body, latch mechanism, and ferrule assembly. This segmentation allows the complex functionality to be distributed across multiple simple parts that work together, making the overall system easier to manufacture and assemble while providing the required removable attachment capability.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3155465B1Pluggable connector
Publication Date: 2020.02.19 FINISAR CORP
  • EP3155465B1 patent drawingFigure 1~2
  • EP3155465B1 patent drawingFigure 3~4
  • EP3155465B1 patent drawingFigure 5A

AI summary

In an embodiment, a pluggable connector configured to removably couple an end of an optical cable to an optoelectronic module includes a first portion and a second portion. The first portion is configured to engage a latch slot of the optoelectronic module to retain within the optoelectronic module a ferrule optically coupled to optical fibers of the optical cable. The second portion is configured to engage the ferrule to prevent removal of the ferrule from within the optoelectronic module when the first portion engages the latch slot.