Multi-Core Optical Splitter Layout for Dense ONT Connectivity
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Solution Overview
Problem
Current optical distribution network (ODN) solutions in fiber to the home networks require multiple fiber access terminals (FATs) due to limited connectivity, increasing investment costs and construction difficulty in high user density scenarios.
Innovation Solution
An optical splitting device with multi-core input and output interfaces and multiple optical splitters, allowing for increased connectivity to optical network terminals (ONTs) by supporting multiple optical fibers and enabling plug-and-play fiber connector integration, reducing the need for splicing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple fiber access terminals (FATs) are deployed to support more ONTs in high user density scenarios, then the connectivity to ONTs is improved, but the investment costs and construction difficulty increase
Solution Approach 1:
The patent merges multiple optical splitting functions into a single integrated device. The optical splitting device combines a first optical splitter and a second optical splitter within one housing, with multi-core optical interfaces that can connect to multiple ONTs simultaneously. This consolidation eliminates the need for multiple separate FATs, reducing construction complexity while maintaining high connectivity capacity.
Solution Approach 2:
The optical splitting device performs multiple functions within a single unit: it provides optical signal splitting through multiple splitters, interfaces with multiple ONTs via multi-core optical interfaces, and supports both isometric and non-isometric splitting ratios. This multi-functionality replaces what previously required multiple specialized devices, reducing both cost and construction difficulty.
2Adaptability or versatility
If multiple fiber access terminals (FATs) are deployed to support more ONTs in high user density scenarios, then the connectivity to ONTs is improved, but the investment costs increase
Solution Approach 1:
The patent merges multiple optical splitting functions into a single integrated device. The optical splitting device combines a first optical splitter and a second optical splitter within one housing, with multi-core optical interfaces that can connect to multiple ONTs simultaneously. This consolidation eliminates the need for multiple separate FATs, reducing construction complexity while maintaining high connectivity capacity.
Solution Approach 2:
The optical splitting device performs multiple functions within a single unit: it provides optical signal splitting through multiple splitters, interfaces with multiple ONTs via multi-core optical interfaces, and supports both isometric and non-isometric splitting ratios. This multi-functionality replaces what previously required multiple specialized devices, reducing both cost and construction difficulty.
Data Source
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AI summary
Embodiments of this application disclose an optical splitting device and an optical splitting system, so that the optical splitting device can be connected to more ONTs, and investment costs and construction difficulty are reduced in a scenario with relatively high user density. The optical splitting device includes a housing, at least one first optical splitter, a multi-core input optical interface, a multi-core output optical interface, and at least one single-core output optical interface. The multi-core input optical interface, the multi-core output optical interface, and the at least one single-core output optical interface are disposed on an outer wall of the housing, the at least one first optical splitter is disposed in the housing, and each first optical splitter includes an input end, a first output end, and at least one second output end. The multi-core input optical interface is connected to an input end of the at least one first optical splitter, the first output end of each first optical splitter is connected to the multi-core output optical interface, and the second output end of each first optical splitter is connected to the single-core output optical interface in a one-to-one correspondence.