Abstract
A sensing system utilizing a standard optical fiber as a distributed
sensor for the detection and localization of mechanical vibrations is
presented. Vibrations can be caused by various external factors, like
moving people, cars, trains, and other objects producing mechanical
vibrations that are sensed by a fiber. In our laboratory we have designed
a sensing system based on the Φ-OTDR (phase sensitive Optical Time Domain
Reflectometry) using an extremely narrow laser and EDFAs.
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