Optical Switch Routing for Dynamic Signal Quality Compensation
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Solution Overview
Problem
Optical fibers used in high-speed transmission suffer from chromatic dispersion, and existing quality compensation methods are inadequate for dynamically changing subscriber devices in all-photonics networks, leading to potential transmission issues.
Innovation Solution
An optical communication system with an optical switch, quality compensators, and a controller that dynamically selects and controls quality compensators based on the degree of quality deterioration to ensure optimal signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If quality compensation is performed using fixed methods for all subscriber devices, then device complexity is reduced, but transmission reliability deteriorates when subscriber devices dynamically change
Solution Approach 1:
The patent implements dynamic quality compensation by enabling the optical switch to selectively connect different quality compensators based on real-time transmission path characteristics. The system transitions from fixed to dynamic configuration, where the controller adjusts the connection between subscriber devices and quality compensators according to changing network conditions, thereby maintaining high reliability without requiring complex reconfiguration of the entire system architecture.
Solution Approach 2:
The system changes the operational parameters of quality compensation by selecting different compensators with varying compensation capabilities. The controller monitors transmission quality parameters and adjusts the selection of quality compensators accordingly, allowing the system to adapt to dynamically changing subscriber devices and transmission conditions while managing complexity through parameter-based control rather than structural redesign.
2Adaptability or versatility
If multiple quality compensators are deployed to handle dynamically changing subscriber devices, then adaptability improves, but device complexity increases
Solution Approach 1:
The optical switch serves as a universal control element that manages multiple quality compensators, enabling a single device to perform multiple functions. By using the optical switch to dynamically route different subscriber devices to appropriate quality compensators, the system achieves high adaptability without requiring each compensator to be independently controllable, thereby reducing overall system complexity while maintaining versatility.
Solution Approach 2:
The controller acts as an intermediary that coordinates between subscriber devices and quality compensators without requiring direct complex interactions between them. The controller simplifies the system by centralizing the decision-making logic for compensator selection, allowing multiple compensators to be managed through a single control interface, thus improving adaptability while managing complexity through intermediary control.
3Manufacturing precision
If chromatic dispersion compensation is optimized for each transmission path, then transmission quality improves, but control complexity increases
Solution Approach 1:
The system segments the quality compensation function by providing multiple dedicated quality compensators, each optimized for specific transmission path characteristics. The optical switch divides the control complexity by routing different subscriber devices to appropriate segmented compensators based on their specific needs, thereby achieving high compensation precision without requiring a single overly complex control mechanism.
Solution Approach 2:
The system performs preliminary configuration by pre-deploying multiple quality compensators with different optimization characteristics before transmission begins. The controller selects the appropriate pre-configured compensator for each subscriber device based on transmission path characteristics, avoiding the need for real-time complex optimization calculations and reducing control complexity while maintaining high compensation precision.
Data Source
AI summary
An optical switch having a plurality of ports outputs an optical signal, which is input from one of the plurality of ports, from another port. A quality compensator perform quality compensation of the optical signal output from the optical switch, and input the quality-compensated optical signal to the optical switch. A controller selects, among the plurality of quality compensators, a quality compensator that performs quality compensation according to the degree of quality deterioration of the optical signal when the optical signal input from a predetermined port of the optical switch is transmitted through a transmission path. The controller controls the optical switch so that the optical signal, in which quality is compensated by the selected quality compensator through the optical signal input from the predetermined port being output to the selected quality compensator, is output from the port corresponding to a transmission destination of the optical signal.