Modeling of Birefringent Photonic Waveguide Based Sensor

Abstract

In this work, we have studied the influence of the source's wavelength, geometrical and physical parameters on the sensitivity of uniaxial anisotropic planar optical sensor. Our study was concerned LiNbO3 as wave guiding film. The results show that, for both TE and TM modes, the increase of the source's wavelength, cover and the core refractive indices induce the increase of maximal sensitivity. On the contrary, the increase of the core thickness and the substrate refractive index induces the decrease of the sensor sensitivity.