Luminescent Jacket for Fiber Optic Cable Fault Detection
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Solution Overview
Problem
Current fiber optic cable fault detection methods are inefficient for identifying faulty cables within a bundle, as they only diagnose issues at the receiving end and require significant manual intervention.
Innovation Solution
A fiber optic cable system incorporating a VCSEL laser source and LED light diagnostics, with a transparent or luminescent jacket for self-identification of faults, allowing for minimal user intervention and automated detection of breaks or damage along the cable length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current transceiver assemblies with loss-of-light diagnostic feature are used, then the receiving end of the cable can be identified, but the cable along its entire length cannot be identified and manual intervention is required
Solution Approach 1:
The patent applies color changes by incorporating a luminescent compound-containing layer into the cable jacket. When cracks or faults occur, this layer emits visible light or changes color to indicate the fault location, enabling precise identification of faults along the entire cable length without manual inspection. This directly addresses the limitation of current methods that can only identify the receiving end.
Solution Approach 2:
The cable system performs self-diagnosis through the luminescent compound-containing layer that automatically detects and indicates faults along its length. This eliminates the need for manual intervention or external diagnostic equipment to locate faults, allowing the cable to identify its own problems without human assistance.
2Measurement precision
If manual identification of faulty cables in bundles is performed, then fault location can be determined, but the process is time-consuming and tedious
Solution Approach 1:
The luminescent compound-containing layer provides immediate visual indication of fault locations through light emission or color change, allowing rapid identification of faulty cables within a bundle. This eliminates time-consuming manual inspection while maintaining accurate fault location detection.
Solution Approach 2:
The cable system automatically indicates its own faults through the luminescent layer, eliminating the need for time-consuming manual identification processes. The self-diagnostic capability provides immediate fault location information, significantly reducing the time required to identify and respond to cable failures.
3Extent of automation
If a luminescent compound-containing layer is incorporated into the cable structure, then automated fault identification along the entire cable length is enabled, but the cable structure becomes more complex
Solution Approach 1:
The luminescent compound-containing layer is integrated into the existing cable jacket structure, merging the diagnostic function with the protective outer layer. This combination approach enables automated fault detection along the entire cable length without adding separate complex diagnostic systems, thereby minimizing structural complexity while maximizing automation.
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
Enables rapid and automated identification of faulty cables within bundles without infrastructure downtime, reducing manual effort and enhancing diagnostic capabilities.
Implementation Method 1
a core for receiving laser light emitted from a vertical cavity surface emitting laser (VCSEL) laser source
Implementation Method 2
the cladding having an index of refraction differential with the core thereby allowing containment of light within the core by total internal reflection within the core
Implementation Method 3
a buffer disposed around the cladding, the buffer for receiving light emitting diode (LED) emitted light
Implementation Method 4
a jacket disposed around the braiding layer, the jacket having optical properties to receive LED light transmitted down the buffer in response to VCSEL light having been unsuccessfully transmitted down the core
Data Source
AI summary
Fiber optic cable systems and methods incorporating a luminescent compound-containing layer to identify cracks. Exemplary embodiments include a fiber optic cable apparatus including a core for receiving laser light emitted from a VCSEL for the detection of faults in the fiber optic cable, a cladding disposed around the core, the cladding having an index of retraction differential with the core thereby allowing containment of light within the core by total internal reflection within the core, a buffer disposed around the cladding, the buffer capable of receiving LED emitted light for the detection of faults in the fiber optic cable, a braiding layer disposed around the buffer and configured to allow LED light to transmit from the buffer, and a jacket disposed around the braiding layer, the jacket having optical properties to receive LED light transmitted down the buffer in response to VCSEL light having been unsuccessfully transmitted down the core.