Optical Fiber Actuator for Link Identification
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Solution Overview
Problem
Existing optical network testing systems are inadequate for identifying individual optical communication links within arrays of optical fibers, especially over longer distances, as they rely on external light sources that can cause service interruptions and are ineffective in distinguishing between links, leading to increased downtime and resource utilization.
Innovation Solution
The system uses an actuator device to physically manipulate a section of the optical fiber, causing changes in the polarization state of the optical signal, which is then detected by a detector device at the receiver end, allowing for the identification of individual optical communication links without external light sources, thus reducing downtime and resource requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external light sources are used to test optical fibers, then the testing can be performed, but service interruptions occur and downtime increases
Solution Approach 1:
The system uses the optical signal already traveling through the fiber for communication purposes to perform the testing function. The actuator manipulates the fiber to modulate the existing signal, and the detector identifies the signal changes, allowing the fiber to serve both communication and testing functions simultaneously without requiring external light sources or service interruptions.
2Length of stationary object
If infrared light is used to test optical fibers over longer distances, then the testing range is extended, but individual links cannot be distinguished within an array
Solution Approach 1:
The actuator applies localized manipulation to specific sections of the optical fiber, creating local changes in the optical signal that can be detected and correlated to identify individual links. By targeting specific locations and applying controlled disturbances, the system achieves both long-range detection capability and precise link identification within arrays.
Solution Approach 2:
The actuator mechanically manipulates the optical fiber, potentially introducing vibrations or oscillations that modulate the optical signal. These mechanical disturbances create detectable signal variations that allow identification of individual links even over long distances, combining the reach of infrared testing with the specificity needed for link differentiation.
3Ease of manufacture
If field technicians disconnect optical fibers to inject external light sources, then testing can be performed, but unwanted service interruptions and damage risks increase
Solution Approach 1:
The system eliminates the need to disconnect fibers by using the existing optical signal within the fiber for testing purposes. The actuator and detector work together to modulate and detect changes in the ongoing signal, allowing testing to be performed while the fiber remains connected and operational, thus avoiding service interruptions and connection-related damage risks.
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 field technicians to identify optical communication links more efficiently, using existing optical signals to test fibers of varying lengths without disrupting service, thereby reducing costs and resource allocation associated with equipment and workforce.
Implementation Method 1
causing changes in the polarization state of the optical signal
Implementation Method 2
a detector device at the receiver end to detect changes in intensity in the optical signal
Data Source
AI summary
An actuator device can include a plate, an actuator, a connector, and a power unit. The plate can retain a section of an optical fiber at the transmitter end of an optical communication link. The section of the optical fiber can be wrapped in at least a partial loop and held or retained by the plate. The connector can be a mechanical connector that couples the plate to the actuator and enables the plate to move about at least one axis to cause a change in a polarization state of the optical signal carried by the optical fiber. The change in the polarization state is identifiable by a polarized photodetector near a receiver end of the optical communication link. The power unit can provide power to at least the actuator.