Photonic Sensors, 2014, 4 (3): 198, Published Online: Jul. 10, 2014
Advanced Fiber-Optic Acoustic Sensors
Abstract
Acoustic sensing is nowadays a very demanding field which plays an important role in modern society, with applications spanning from structural health monitoring to medical imaging. Fiber-optics can bring many advantages to this field, and fiber-optic acoustic sensors show already performance levels capable of competing with the standard sensors based on piezoelectric transducers. This review presents the recent advances in the field of fiber-optic dynamic strain sensing, particularly for acoustic detection. Three dominant technologies are identified-fiber Bragg gratings, interferometric Mach-Zehnder, and Fabry-Perot configurations-and their recent developments are summarized.
Joao G. V. TEIXEIRA, Ivo T. LEITE, Susana SILVA, Orlando FRAZAO. Advanced Fiber-Optic Acoustic Sensors[J]. Photonic Sensors, 2014, 4(3): 198.