Power-over-Fiber Routing for Bypassing Transmission Faults
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Solution Overview
Problem
Current optical power supply systems require further improvement in efficiency, particularly in photoelectric conversion efficiency at both the power supplying and receiving sides.
Innovation Solution
A power over fiber system incorporating a semiconductor laser for generating feed light, photoelectric conversion elements for converting feed light into electric power, and optical fiber cables with optical switches that can form multiple transmission routes, including a detector to identify and bypass poor transmission points, ensuring efficient power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single transmission route is used for feed light, then the system structure is simple, but the system cannot bypass poor transmission points and maintains low reliability
Solution Approach 1:
The patent segments the single transmission route into multiple alternative routes (Route 1, Route 2, etc.) by introducing optical switches at different connection points. This allows the system to divide the power transmission path into selectable segments, enabling bypass of poor transmission points while maintaining overall system functionality.
Solution Approach 2:
The patent implements dynamic route selection by using optical switches that can change connection states based on transmission quality detection. The system transitions from a static single route to a dynamic multi-route configuration, allowing real-time adaptation when poor transmission points are detected through the detector and control device.
2Reliability
If photoelectric conversion efficiency is improved by optimizing materials, then conversion efficiency increases, but the system lacks adaptability when transmission routes deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where the detector continuously monitors transmission quality on active routes and feeds this information to the control device. Based on this feedback, the control device automatically switches to alternative routes when degradation is detected, creating a closed-loop system that adapts to changing transmission conditions.
Solution Approach 2:
The patent changes the operational parameter from a fixed transmission route to a variable route configuration. The system can alter which physical path the feed light takes through the optical network, allowing adaptation to different transmission conditions without changing the photoelectric conversion materials themselves.
3Reliability
If multiple transmission routes are configured with optical switches, then the system can bypass poor transmission points, but the device complexity increases
Solution Approach 1:
The optical switches in the patent serve multiple functions: they act as route selectors for normal operation, as bypass mechanisms when transmission degradation occurs, and as integration points for the detection system. This multi-functionality reduces the need for separate dedicated components for each function.
Solution Approach 2:
The control device acts as an intermediary between the detector and the optical switches. It receives detection signals, processes the transmission quality information, and generates appropriate switching commands, thereby mediating the interaction between monitoring and actuation components.
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
Enhances optical power supply efficiency by improving photoelectric conversion efficiency and allowing for quick recovery from poor transmission points, ensuring stable and efficient electric power supply.
Implementation Method 1
a semiconductor laser that oscillates with electric power, thereby outputting feed light
Implementation Method 2
a photoelectric conversion element that converts the feed light into electric power
Data Source
AI summary
A power over fiber system includes a power sourcing equipment, a powered device, optical fiber cables, optical switches, a detector and a control device. The power sourcing equipment includes a semiconductor laser that oscillates with electric power, thereby outputting feed light. The powered device includes a photoelectric conversion element that converts the feed light into electric power. The optical fiber cables transmit the feed light. The optical switches selectively connect the optical fiber cables. The optical fiber cables and the optical switches can form at least two transmission routes of the feed light. The detector detects a poor transmission point on a transmission route among the transmission routes of the feed light. The control device controls the optical switches so as to form another transmission route among the transmission routes of the feed light in accordance with the poor transmission point, the transmission route bypassing the poor transmission point.