Numerical analysis of current measurement error due to localized vibration effects on reciprocal fiber optic polarimetric current sensor

The accuracy of current measurement in an optical fiber current sensor is affected by the environment perturbations to the sensing fiber such as mechanical vibrations, acoustic perturbations, and temperature changes. This paper presents a novel mathematical model for numerical investigation of current measurement error due to localized vibration (on a section of the sensing fiber) effects on a reciprocal fiber optic polarimetric current sensor. The environmental vibrations affect birefringence properties of the single-mode sensing fiber and cause current measurement error.