Optical Anomaly Localization Using Dual-Wavelength Time Delay
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Solution Overview
Problem
Existing optical transmission systems face challenges in accurately locating dynamic anomalies, such as micro-bends, in optical fibers, which can cause signal degradation and network failures.
Innovation Solution
A method involving the use of two optical signals with different wavelengths to determine a time delay, which is then used in conjunction with the wavelengths to calculate the location of the dynamic anomaly within the transmission medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional single-wavelength optical signal monitoring is used, then the system complexity is low, but the anomaly location precision is insufficient
Solution Approach 1:
The patent applies parameter changes by utilizing optical signals with different wavelengths to detect anomalies. By transmitting multiple wavelengths and measuring their differential phase shifts or time delays caused by environmental changes, the system achieves precise anomaly localization without requiring complex additional hardware, thus resolving the contradiction between measurement precision and device complexity.
Solution Approach 2:
The patent uses the optical signal itself as an intermediary carrier to detect anomalies. By embedding sensing information in the optical signal's phase or time delay characteristics, the system transforms the anomaly detection function into the optical transmission process, eliminating the need for separate complex sensing devices while maintaining high measurement precision.
2Reliability
If dynamic anomaly detection is implemented, then the reliability of optical transmission is improved, but the time required for anomaly localization increases
Solution Approach 1:
The patent implements preliminary action by continuously monitoring optical signals in real-time as they traverse the transmission medium. The system is pre-configured to detect phase shifts or time delays caused by dynamic anomalies, enabling immediate identification and localization of events such as micro-bends or external disturbances, thus maintaining high reliability without significant time loss.
Solution Approach 2:
The patent employs periodic action through continuous or periodic transmission of optical signals at multiple wavelengths. By regularly sampling the optical signal characteristics and comparing them against baseline values, the system detects dynamic anomalies in real-time, ensuring high reliability while minimizing localization time through systematic periodic monitoring.
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 approach enables precise localization of dynamic anomalies, facilitating timely repair and reducing network downtime by providing accurate information on the anomaly's location.
Implementation Method 1
A first optical signal including a first wavelength and a second optical signal including a second wavelength may be used to determine a time delay
Data Source
AI summary
In an example, a method may include a first optical signal and a second optical signal being obtained by a receiving device. The first optical signal may include a first wavelength and the second optical signal may include a second wavelength. The method may also include obtaining a determination that a dynamic anomaly may be present in the transmission medium. In response to the determination that a dynamic anomaly is present in the transmission medium, a relationship between the first optical signal and the second optical signal may be determined to obtain a time delay. The method may include using the time delay, the first wavelength, and the second wavelength to determine an anomaly location in the transmission medium.