Autonomous measurement system for localization of loss-induced perturbation based on transmission-reflection analysis

摘要

The paper describes first completely autonomous measurement system based on transmission-reflection analysis (AMS-TRA). The autonomous system utilizes simple optical scheme with 2 mW Fabry-Perot diode laser and original data acquisition and processing system. The location of the loss region is determined from unique relationships between normalized transmitted and Rayleigh backscattered powers for different positions of the disturbance along the test fiber. Accuracy, temporal and thermal stability of the autonomous system with 5.6 km-length test fiber were investigated. The paper also presents the preliminary results of the autonomous measurement system implementation for gasoline leak detection and localization.