Brillouin Optical Time Domain Analysis Integrated Fiber-Bragg-Grating for Distributed and Point-to-Point Fiber Sensing

Distributed fiber sensing combines point-to-point fiber sensing is schematically proposed and experimentally demonstrated. The concept is based on Brillouin-optical-time-domain-analysis (BOTDA) system integrates fiber-Bragg-gratings for multiple parameters sensing in a 16km standard fiber with 3m resolution.