A Comprehensive Study on Highly Sensitive Photonics Based Acoustic Sensors for Under Water Applications

By referring few researcher works which is related to the work of optical sensor and able to detect the acoustic signal, this review paper provides the detailed study of acoustic signal in under water. Researchers has worked with the optical sensor and emerged as great promising sensing device. From various research papers it is observed that the detection of acoustic signal is done with the help of various optical sensors. The various sensors are fiber bragg grating (FBG) sensor, fiber optic interferometric sensor and Mach zehnder interferometer (MZI) sensor. So this review paper covers all these sensors and their application with a particular focus on the different structure of optical sensor. The structure of the various sensors and their application is discussed from the different research paper. The overall work is reported and corresponding result is demonstrated. From the demonstrated work it has been observed that with good quality and proper sensitivity in all optical sensors are able to detect the acoustic signal for under water due to their compact size and able to provide accurate results.