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 cost of. 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 cost of. Following are the drawbacks or disadvantages of a Fiber Bragg Grating (FBG) Sensor: It is thermally sensitive. It is difficult to demodulate wavelength shift. 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. However, they. Fiber Bragg gratings are periodic variations in the refractive index inscribed along the core of an optical fiber. These variations are created using a process involving ultraviolet laser irradiation. They help check the safety of bridges and machines.
