Floating Sleeve MPO Connector for TMT Ferrule Compatibility
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Solution Overview
Problem
Conventional MPO connectors are unable to accommodate newer, smaller TMT ferrules, and there is a need to use TMT ferrules within legacy MPO housings without requiring a complete reconstruction of the housing.
Innovation Solution
A multi-fiber fiber optic connector design featuring an inner sleeve with a spring-biased floating configuration, allowing the TMT ferrule to be used within standard MPO housings, with features like sleeve shoulders, centering elements, and guide pins for proper alignment and insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional MPO connector housing is used, then compatibility with standard MT ferrules is maintained, but inability to accommodate smaller TMT ferrules occurs
Solution Approach 1:
The connector is divided into separate functional components: a standard MPO housing for compatibility, and a floating inner assembly (sleeve + ferrule) that can be independently configured. This segmentation allows the outer housing to remain standard while the inner components adapt to different ferrule types including TMT.
Solution Approach 2:
The TMT ferrule is nested within a custom sleeve, which is in turn nested within the standard MPO housing. This nested structure allows the smaller TMT ferrule to be accommodated within the larger standard housing footprint without requiring housing modification.
2Area of moving object
If TMT ferrule is used to reduce footprint, then higher fiber density is achieved, but incompatibility with legacy MPO housings occurs
Solution Approach 1:
A custom sleeve acts as an intermediary component between the TMT ferrule and the standard MPO housing. The sleeve provides the necessary interface and adaptation mechanisms, allowing the TMT ferrule to function within legacy housings without direct modification to either the ferrule or housing.
Solution Approach 2:
The floating inner assembly design creates a universal interface that can accommodate multiple ferrule types (MT and TMT) within the same standard MPO housing, making the system multi-functional and backward compatible while supporting newer smaller ferrules.
3Ease of operation
If floating configuration with spring is used, then ease of insertion is improved, but device complexity increases
Solution Approach 1:
The inner sleeve and ferrule assembly is made dynamic through the spring mechanism, allowing it to float and self-adjust during insertion. This dynamic configuration automatically centers the ferrule and maintains proper alignment without requiring complex external alignment mechanisms.
Solution Approach 2:
The spring-biased floating assembly provides self-centering and self-alignment capabilities during insertion. The mechanism automatically compensates for minor misalignments and maintains optimal positioning without external intervention or complex control systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the use of TMT ferrules in existing MPO connectors, maintaining compatibility with standard MPO housings and allowing for the use of standard ferrule pushes, facilitating easy insertion into pre-populated adapters.
Implementation Method 1
a spring positioned rearward of and exerting a force on a rear end of the inner sleeve to bias the multi-fiber fiber optic ferrule and the inner sleeve in a forward direction
Data Source
AI summary
A fiber optic connector for fiber optic ferrule has an outer housing, an inner housing at least partially disposed within the outer housing, an inner sleeve positioned within the inner housing and engageable with a rear facing surface inside the inner housing, the ferrule engaged by a rearward facing surface of the inner sleeve, and a spring positioned rearward of and exerting a force on a rear end of the inner sleeve to bias the ferrule and the inner sleeve in a forward direction, wherein the combination of the inner sleeve and the ferrule is in a floating configuration inside the connector.