3-Way Branching Unit Switch Module for Undersea Fiber Optics
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Solution Overview
Problem
Undersea fiber optic telecommunications systems face challenges in maintaining reliable and robust transmission capacity due to the high cost and difficulty of deploying, upgrading, or repairing submarine cables, which are prone to degradation, necessitating enhanced route diversity solutions.
Innovation Solution
The implementation of a 3-way switching function (3WS) in branching units within submarine fiber optic telecommunications systems, allowing for flexible redirection of traffic between multiple fiber pairs to ensure continuous connectivity and maximize capacity while minimizing system size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional branching units are used to provide route diversity, then transmission reliability is improved, but device size and cost increase
Solution Approach 1:
The patent combines multiple switching functions into a single integrated 3-way switching module. The module integrates three 1×2 optical switches and three 2×1 optical couplers into one compact unit, merging the functions of multiple separate components into a single device that provides route diversity while minimizing footprint.
Solution Approach 2:
The 3-way switching module performs multiple functions within a single device: it provides route diversity, enables traffic redirection between multiple fiber pairs, and maintains transmission capacity. The module can handle three different routing configurations simultaneously, making it a universal solution for various branching unit requirements.
2Reliability
If more switching components are added to enhance route diversity, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent segments the switching function into a modular 3-way switching unit that can be independently deployed. The module is divided into three 1×2 optical switches and three 2×1 optical couplers, each performing a specific switching function. This segmentation allows for simplified control and management compared to a monolithic switching system.
Solution Approach 2:
The switching module employs dynamic control through electronic control signals that can reconfigure the optical switches in real-time. The system can adaptively redirect traffic between different fiber pairs based on transmission conditions, providing dynamic route diversity without requiring complex manual reconfiguration.
3Adaptability or versatility
If undersea cables are deployed to expand network coverage, then telecommunications capacity is improved, but deployment cost and difficulty increase
Solution Approach 1:
The 3-way switching module enables self-service capabilities by automatically detecting transmission degradation and rerouting traffic through alternative paths without requiring manual intervention. The system monitors transmission quality and dynamically adjusts routing decisions, reducing the need for human operators to physically access and reconfigure undersea equipment.
4Productivity
If existing undersea cables are upgraded to increase capacity, then transmission capacity is improved, but upgrade cost and difficulty increase
Solution Approach 1:
The patent changes the routing parameters dynamically to optimize transmission capacity. By adjusting which fiber pairs are active and how traffic is distributed across available routes, the system can increase effective capacity without physically upgrading the cable infrastructure. The electronic control signals modify switching states to maximize utilization of existing resources.
Data Source
AI summary
Aspects of the present disclosure describe a three-way branching unit switch module having a small footprint suitable for application in an undersea application.