View Fiber Optic Sensors Research Papers on Academia. Electromagnetism and Telecom Department, University of Mons, 7000 Mons, Belgium Foundation for Research and Technology Hellas (FORTH), Institute of Electronic Structure and Laser (IESL), 70013 Heraklion, Greece School of Sciences, European University Cyprus/EUC Research Centre, 1516 Nicosia, Cyprus. This work reviews the ber-optic sensors based on Bragg gratings, long fi period gratings, interferometers, surface plasmon resonance, uorescence, and light fl diffusion. Brief theory of sensing principle, fabrication method, applications, advantages and disadvantages of the different ber-optic. Index Terms— Fiber optics, optical fiber sensing, fiber sensor application. Laser systems could send a much larger amount of data than microwave, and other electrical systems. Optical Interrogation Methods We greatly acknowledge the research funding and support from the Nuclear Energy University Program (NEUP) and National Energy Technology. Because of the fiber-optic sensor's (FOS) inherent distinctive advantages (such as small size, lightweight, immunity to electromagnetic interference (EMI) and corrosion, and embedding capability), a significant number of innovative sensing systems have been exploited in the civil engineering for. Fiber optic sensors are devices that utilize optical fibers to measure physical parameters such as temperature, pressure, and strain. They operate by detecting changes in light transmission through the fiber, enabling high sensitivity and accuracy in various applications, including structural.