Following are the drawbacks or disadvantages of a Fiber Bragg Grating (FBG) Sensor: It is thermally sensitive. It is difficult to demodulate wavelength shift. It is difficult to discriminate wavelength shift due to temperature and strain. They have many advantages over conventional sensors, such as immunity to electromagnetic interference, high sensitivity, and long transmission distance. Fiber optic sensors work by modulating one or more properties of the light wave, such as intensity, phase, polarization, and frequency. This work reviews the fiber‐optic sensors based on Bragg gratings. Abstract—Chromatic dispersion is a significant limitation in optical fiber communication, as it causes pulse broadening, which negatively impacts transmission distance and data rates, both of which are critical for meeting the high-speed demands of 5G optical networks. This review provides a comprehensive overview of FBG sensor technology.
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