Optical Fiber Connection Detection via Wavelength-Modulated Label Signals
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Solution Overview
Problem
Manual identification of optical fiber connection relationships in optical fiber communications systems is inefficient and prone to errors, especially in systems with many reconfigurable optical add/drop multiplexers (ROADMs), leading to heavy workloads and reduced accuracy.
Innovation Solution
An optical fiber connection detection method that involves a network device generating and modulating label information onto an optical signal within a specific wavelength range, allowing for automatic detection of connection relationships between optical output and input interfaces without manual intervention, using label information and wavelength indication to accurately identify and manage connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual identification of optical fiber connection relationship is used, then flexibility and adaptability are maintained, but efficiency and accuracy of connection detection deteriorate due to heavy workload and human error
Solution Approach 1:
The optical fiber connection detection system performs self-detection by automatically generating detection signals, modulating label information, transmitting through optical fibers, and analyzing returned signals to identify connection relationships without manual intervention, enabling the system to service itself
Solution Approach 2:
The patent replaces manual mechanical identification processes with an automated optical detection system that uses light transmission and photoelectric conversion to automatically detect and identify optical fiber connection relationships
2Measurement precision
If manual identification of optical fiber connection relationship is used, then simplicity of operation is maintained, but accuracy of connection detection deteriorates due to high probability of errors
Solution Approach 1:
The detection system transmits optical signals through optical fibers and receives feedback signals from the far end, analyzing the returned signals to accurately determine connection relationships, ensuring high detection accuracy through closed-loop verification
Solution Approach 2:
The patent uses optical signals as intermediaries to carry label information through optical fibers, enabling accurate indirect detection of connection relationships without direct manual intervention at each connection point
3Reliability
If detection signals are transmitted across optical networks, then connection detection capability is improved, but interference with optical service signals may occur
Solution Approach 1:
The patent segments the optical spectrum by assigning different wavelength ranges to detection signals and service signals, allowing simultaneous transmission without interference through spectral separation
Solution Approach 2:
The detection system uses wavelength-specific optical signals tailored to each optical output interface's wavelength range, ensuring detection signals are locally optimized and do not interfere with service signals in other wavelength bands
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 method significantly improves the efficiency and accuracy of optical fiber connection detection by automating the process, reducing manual workload and minimizing interference with optical service signals, and enabling effective network management.
Implementation Method 1
the first network device modulates the first label information onto the optical signal, to generate a modulated optical signal
Implementation Method 2
an optical fiber serves as a transmission medium, and light is used to transmit information through photoelectric conversion
Implementation Method 3
light is used to transmit information through photoelectric conversion
Data Source
AI summary
Embodiments of the present application disclose an optical fiber connection detection method and a related device. A first network device obtains first label information, which indicates a target optical output interface, and the target optical output interface is one of at least one optical output interface of the first network device; the first network device generates an optical signal, where a wavelength of the optical signal is within a wavelength range corresponding to the target optical output interface; the first network device modulates the first label information onto the optical signal, to generate a modulated optical signal; and the first network device sends the modulated optical signal from the target optical output interface to a target optical input interface of a second network device, to detect an optical fiber connection relationship between the target optical output interface and the target optical input interface.