Indian Institute of Science (IISc)
C M Chandrashekhar | QOQI Lab
"Underwater pressure acoustic sensor with a Bragg grated optical fibre as the core sensing element is fabricated with simple cylindrical sidehole structure. The sensor contains no electronic component or any current carrying element. In this demonstration, acoustic waves are generated in a watertank and the signal is received by a FBG Hydrophone made in our lab."