Feasibility study of fiber taper acoustic sensor by utilizing time domain reconstruction

A fiber taper acoustic sensor utilize the ability of taper structure to modulate vibration signal into the fiber transmission power. Currently, there is a lack of detailed study on the bending effect of fiber taper to the fiber transmission power. In this paper, wide-angle propagation method is used to simulate the effect of fiber taper bending. The reconstructed time-domain signal and time-domain signal modulated from vibration has a nonlinear negative relationship and has a correlation coefficient value of 0.9979.