This review provides a comprehensive overview of FBG sensor technology, focusing on their operating principles, key advantages such as high sensitivity and immunity to electromagnetic interference, and common challenges like temperature-strain cross-sensitivity and the high. This review provides a comprehensive overview of FBG sensor technology, focusing on their operating principles, key advantages such as high sensitivity and immunity to electromagnetic interference, and common challenges like temperature-strain cross-sensitivity and the high. Fiber Bragg grating (FBG) sensors have emerged as advanced tools for monitoring a wide range of physical parameters in various fields, including structural health, aerospace, biochemical, and environmental applications. This review provides a compre-hensive overview of FBG sensor. Abstract—Fiber Bragg Grating (FBG) sensors are categorized as a reliable solution for industrial temperature monitoring due to their exceptional sensitivity, immunity to electromagnetic interference, and multiplexing capabilities. Interrogation techniques encompasses optical interferometry, optical edge filtering, time division multiplexing, optical spectrum analysis (OSA) and wavelength division.
