Indexing Terminal Arrangement for Passive Optical Networks
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Solution Overview
Problem
Passive optical networks face challenges in efficiently managing and indexing multiple optical fibers within terminal housings, leading to complexity and potential reliability issues due to the lack of active electronic devices, which affects the delivery of high-bandwidth communication.
Innovation Solution
The indexing terminal arrangement includes an optical power splitter, multi-fiber and single-fiber optical adapters, and a pass-through multi-fiber optical connector within a terminal housing, which splits and routes optical signals to various ports, enabling efficient indexing and alignment of optical fibers, thereby reducing complexity and enhancing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple optical fibers are managed within terminal housings, then high-bandwidth communication capability is achieved, but device complexity increases
Solution Approach 1:
The terminal housing is divided into multiple compartments, each dedicated to specific optical fiber routing and connection functions. The optical power splitter is segmented into multiple splitter units, each handling specific fiber groups. This segmentation allows high-bandwidth communication through multiple fibers while maintaining organized, low-complexity management through functional separation.
Solution Approach 2:
Optical adapters and connectors serve as intermediary components between the input optical fibers and the splitter units. These intermediaries provide standardized interfaces and alignment mechanisms, simplifying the connection process and reducing the complexity of managing multiple optical fibers while maintaining high bandwidth capability.
2Reliability
If passive optical networks are used to deliver high-speed communication data, then network reliability is improved, but device complexity increases
Solution Approach 1:
Active electronic devices such as amplifiers and repeaters are extracted from the network architecture, leaving only passive optical components. This extraction improves reliability by eliminating potential failure points in active devices while the remaining passive components (splitters, adapters, connectors) provide the necessary functionality with reduced complexity.
Solution Approach 2:
The passive optical network system performs its functions without requiring active electronic control or power supply for signal amplification. The optical signals are distributed and managed through passive components that operate automatically based on their physical properties, reducing both complexity and failure risks associated with active devices.
3Productivity
If optical signals are split onto multiple splitter pigtails, then signal distribution is improved, but device complexity increases
Solution Approach 1:
The optical adapters and connector assemblies serve multiple functions: fiber alignment, connection, and integration with the splitter units. This multi-functionality reduces the number of separate components needed, simplifying the overall device complexity while maintaining efficient signal distribution across multiple splitter pigtails.
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
This solution allows for the efficient splitting and routing of optical signals, simplifying the network architecture, reducing costs, and increasing reliability by eliminating the need for active electronic devices, while maintaining high-bandwidth communication capabilities.
Implementation Method 1
The optical power splitter is configured to split optical signals carried by the optical fiber of the input cable onto a plurality of splitter pigtails
Data Source
AI summary
An indexing terminal arrangement includes a terminal housing that receives an input cable; an optical power splitter disposed within the interior of the terminal housing; a first multi-fiber optical adapter coupled to the terminal housing; a first single-fiber optical adapter coupled to the terminal housing; and a pass-through multi-fiber optical adapter coupled to the terminal housing. Split optical signals are provided to the first multi-fiber optical adapter and the first single-fiber optical adapter. Unsplit and indexed optical signals are provided to the pass-through optical adapter.