Temperature Insensitive Fiber Optic Sensor for Acoustic Wave Detection

Intelligent Structures Research at Virginia Tech

“…Analysis indicates that for shot noise limited detector performance, a 1.OHz bandwidth, and reasonable laboratory equipment parameters, the minimum detectable strain is on the order of micro-microstrain per centemeter of fiber sensor length [9]; this demonstrates the excellent sensitivity of interferometric fiber sensor devices. Although conventional interferometric fiber sensor designs are impeded by indistinguishable multiparameter influences on output signal response, alternative configurations which we have studied avoid such problems by compensated mechanical designs or postdetection signal processing [10,11].…”