Electromechanical analysis for a piezo-optical fiber subjected to harmonic loading

Abstract

This article investigates the electromechanical responses of a piezocoated optical fiber subjected to time-harmonic excitation of mechanical load as a sensor or to electric voltages as an actuator. Piezoelectric coatings, functioning as sensors or actuators, have potential in the development of acousto-optic devices. Despite the growing demand for optical fibers coated with piezoelectric materials, pertinent research work on their electromechanical responses in integrated systems still remains very scarce indeed. By application of Hamilton’s principle to piezoelectric fundamentals, the equations of motion under dynamic excitations are solved with proper boundary conditions to give the analytical forms of the integrated system’s electromechanical responses. For numerical illustration of the responses, an example is investigated to give the instantaneous response for the direct and converse effects.