Abstract

A theoretical method is described from which the thickness of an arbitrary layer in a dielectric multilayer stack is determined if all other thicknesses and all refractive indices are given, such that a prescribed effective index for a given mode of the stack is obtained. The same theory can determine the optimal cover thickness of such a stack for prism coupling. Experimental verification shows effective indices that are in agreement with the designed values.

© 1990 Optical Society of America

Effective thickness, group velocity, power flow, and stored energy in a multilayer dielectric planar waveguide

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