Abstract

In this paper we present the results of an in-depth analysis of the problem of Gaussian beam excitation of optical fibers at normal incidence. The method entails the application of the continuity conditions at the interface located at the fiber end using Gaussian beams with different spot sizes as our excitation source. Next, the simultaneous set of equations obtained is numerically solved for the reflected, guided, and radiated modal coefficients and their corresponding powers.

© 1975 Optical Society of America

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