OTDR Combined Trace Display for Fiber Event Analysis
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Solution Overview
Problem
The complexity of trace analysis in optical time-domain reflectometry (OTDR) increases with multiple pulse widths and wavelengths, making it difficult for users to characterize optical fibers effectively.
Innovation Solution
The OTDR device generates a combined trace based on multiple pulse widths and wavelengths, using algorithms to select and merge trace sections that include optical events, reducing the number of traces displayed and improving analysis efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple pulse widths and wavelengths are used for optical fiber characterization, then measurement precision and detection capability are improved, but device complexity and trace analysis difficulty increase
Solution Approach 1:
The patent combines multiple individual traces obtained from different pulse widths and wavelengths into a single composite trace. This merging process integrates the detection capabilities of multiple measurements while presenting a unified, simplified view to the user, thereby maintaining high measurement precision without the complexity of analyzing multiple separate traces.
Solution Approach 2:
The composite trace serves multiple functions simultaneously: it consolidates information from various pulse widths and wavelengths, provides a unified visualization interface, and enables comprehensive optical event detection. This multi-functional approach allows the system to handle diverse measurement conditions through a single integrated display mechanism.
2Measurement precision
If multiple pulse widths and wavelengths are used for optical fiber characterization, then detection capability is improved, but ease of operation deteriorates
Solution Approach 1:
By merging multiple traces into one composite trace, the system eliminates the need for users to manually analyze and correlate multiple separate traces. This consolidation significantly improves ease of operation while preserving the enhanced detection capability provided by using multiple pulse widths and wavelengths.
3Loss of information
If multiple traces are displayed for different pulse widths and wavelengths, then information completeness is improved, but productivity deteriorates
Solution Approach 1:
The composite trace merges information from multiple traces while maintaining completeness of optical event data. This approach allows users to obtain full information about all detected events in a single unified display, eliminating the time-consuming process of analyzing multiple separate traces and thereby significantly improving analysis productivity.
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 simplifies trace analysis by consolidating multiple traces into a single combined trace, enhancing the detection and characterization of optical events along the fiber while reducing complexity and improving data clarity.
Implementation Method 1
the sensor may extract light that is scattered or reflected back from points along the optical fiber
Implementation Method 2
the sensor may extract light that is scattered or reflected back from points along the optical fiber
Data Source
AI summary
In some examples, an optical time-domain reflectometer (OTDR) device may include a laser source to emit a plurality of laser beams. Each laser beam may include a different pulse width. A control unit may analyze, for each laser beam, a backscattered signal from a device under test (DUT). The control unit may generate, for each backscattered signal, a trace along the DUT. Further, the control unit may generate, based on an analysis of each trace along the DUT, a combined trace that identifies optical events detected along the DUT.