Optical Path Control Aggregating Multi-Core Fiber Signals
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Solution Overview
Problem
Current optical network systems using multi-core fibers face challenges in efficiently accommodating paths while minimizing node scale and reducing costs, as they require a large number of components and fibers, leading to bloating and increased costs.
Innovation Solution
A path control apparatus that aggregates paths for a same receiving node into a same core of a multi-core optical transmission channel, using a control section to manage paths across nodes with transmission and reception sections, optical switches, and wavelength selectable switches, allowing for efficient path switching and reduction in node scale.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of multi-core optical transmission channels are used to accommodate more paths, then path accommodation efficiency is improved, but node scale and cost increase
Solution Approach 1:
The patent aggregates multiple paths for the same receiving node into a single core of a multi-core optical transmission channel. This merging of paths reduces the total number of cores required in the network, thereby decreasing node scale and component requirements while maintaining efficient path accommodation. The control section coordinates this aggregation by managing path assignments across multiple cores.
2Reliability
If the number of cores is increased to reduce path blocking probability, then path accommodation efficiency is improved, but the number of components and fibers increases
Solution Approach 1:
The patent combines multiple paths destined for the same receiving node into a single core, which reduces the total number of cores and associated components needed in the network. This aggregation approach maintains low path blocking probability by efficiently utilizing available cores while reducing the overall quantity of optical components and fibers required.
3Productivity
If more optical switches and wavelength selectable switches are deployed to handle increased traffic, then path accommodation efficiency is improved, but device complexity and cost increase
Solution Approach 1:
The patent reduces the number of required optical switches and wavelength selectable switches by aggregating paths into fewer cores. Since each core requires associated switching components, reducing the core count directly reduces the number of switches needed, thereby lowering device complexity and cost while maintaining efficient path accommodation through centralized control.
Data Source
AI summary
A path control apparatus (100) includes a control section (10) that aggregates paths for a same receiving node into a same core of a same multi-core optical transmission channel.