Introduction to Optical Waveguides
Abstract This chapter presents an introduction to the optical waveguides including planar and nonplanar structures. Additionally, an analysis of planner waveguides based on ray-optical approach and
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A three layer planar waveguide structure, consisting of a light guiding ferroelectric lead zirconate titanate thin film, embedded between two transparent zinc oxide electrodes, was elaborated and studied by m-lines spectroscopy. A comparison has been made between the physical-optic approach and the ray-optic approach in descr bing light propagation in a waveguide. However, unlike electrical current that flows through a metal strip according to Ohm's law, optical waves.
