Numerical simulation of optoelectronic sensors: Fiber Bragg grating and noise

Abstract

A previous numerical model was used to simulate the interrogation of optical fiber Bragg grating sensing signals. The noise in the optoelectronic receiver, a photodiode, and transimpedance amplifier, has been incorporated into the model. The simulation results have enabled the comparison of various interrogation systems for optical fiber Bragg grating sensors. That is, utilizing the same sensing element and the same optoelectronic receiver, the choice between either edge filter detection or power detection can be compared and contrasted.