Why do fiber optic cables vibrate
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Mechanical vibrations and acoustic noise acting on the optical fiber cause changes in the strain and the refractive index of the fiber core. These changes can subsequently be detected by several methods and converted into an electrical signal followed by acoustic reproduction. To this end, the effectiveness of vibration analysis for fault detection in a half-submerged module on fiber optic cable manufacturing was studied through theo-retical methods, measurement techniques, mathematical tools, and a series of ex-periments. Fiber optic cables are increasingly being used in harsh environments where they are subjected to vibration. Understanding the degradation in performance under these conditions is essential for integration of the fibers into the given application.