Optical Cable Signaling via Mandrel Bending Loss
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Solution Overview
Problem
Conventional optical fiber testers require unplugging cables to trace or identify endpoints, leading to misconfiguration challenges in data centers, where efficient and non-intrusive endpoint identification is crucial for maintaining high availability.
Innovation Solution
A method involving monitoring a parameter of an optical signal transmitted through an optical fiber, allowing the physical position and orientation of the fiber to be manipulated without disconnecting endpoints, using a high order mode filter with a variable diameter to modulate the signal, enabling data transmission and identification without unplugging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional optical fiber testers are used to trace or identify endpoints, then cable identification can be achieved, but the cable must be unplugged from the source which disrupts service and increases misconfiguration risks
Solution Approach 1:
A mandrel is introduced as an intermediary device that physically manipulates the optical cable to induce bending losses. The mandrel allows the cable to be traced and identified by monitoring optical power changes at the endpoint without requiring unplugging, thus maintaining service availability while enabling accurate cable identification
Solution Approach 2:
The patent replaces the mechanical action of unplugging and reconnecting cables with an optical-based detection method. By monitoring optical power parameters and correlating them with physical cable manipulation (bending around the mandrel), the system identifies cables through optical signal changes rather than physical disconnection, thereby maintaining service continuity
2Reliability
If optical cable tracing is performed without unplugging endpoints, then service availability is maintained, but conventional testers cannot identify cables non-intrusively
Solution Approach 1:
The system employs mechanical manipulation of the optical cable by wrapping it around a mandrel, which induces controlled bending. This physical manipulation creates detectable changes in optical power transmission, enabling cable identification while the cable remains connected and service continues uninterrupted
Solution Approach 2:
The endpoint device continuously monitors optical power parameters and provides feedback when changes are detected. When the cable is manipulated (wrapped around the mandrel), the optical power changes, and this feedback mechanism allows the system to identify the cable in real-time without disrupting service
3Loss of information
If cable endpoints are unplugged to trace cables, then cable identification is possible, but misconfiguration errors increase and cable management efficiency decreases
Solution Approach 1:
The endpoint device performs self-identification by monitoring its own optical power parameters. When a cable is manipulated externally (wrapped around the mandrel), the endpoint detects the power change and automatically identifies itself, eliminating the need for manual unplugging and reconnection operations
Solution Approach 2:
The system establishes baseline optical power parameters before any manipulation occurs. By having the endpoint device ready to monitor and detect changes in advance, the system enables immediate cable identification when manipulation occurs, without requiring preliminary unplugging or preparation that would disrupt service
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 non-intrusive tracing and identification of optical fibers, reducing misconfiguration risks and improving cable management efficiency in data centers by allowing endpoint data association without disrupting service.
Implementation Method 1
an optical signal transmitted between two endpoints via an optical fiber
Implementation Method 2
A portion of the optical fiber may be wrapped around a high order mode filter (HOMF)
Data Source
AI summary
An optical cable signaling system includes an optical cable and an endpoint device that is connected to the optical cable. An optical cable signaling device is provided in the optical cable signaling system for signaling using the optical cable, and includes a first optical cable manipulation subsystem and a second optical cable manipulation subsystem. An optical cable signaling actuator on the optical cable signaling device is configured to move the first optical cable manipulation subsystem relative to the second optical cable manipulation subsystem to physically manipulate the optical cable such that a parameter of an optical signal transmitted through the optical cable changes. An optical cable signaling engine in the optical cable signaling device is configured to actuate the optical cable signaling actuator to communicate information to the endpoint device via changes in the parameter of the optical signal transmitted through the optical cable.