ANALYTICAL STUDIES ON RESONATOR CONSTRUCTION FOR PRODUCING GAUSSIAN BEAMS

Abstract

Recently, a number of publications have considered resonators with complicated mirror surfaces and/or reflectivity aiming at high discrimination against higher-order modes and low loss for the fundamental mode. In this paper, an analytical approach is developed to study resonators for producing Gaussian-shaped beams both for the stripe and circular geometry. Explicit expressions are obtained for the fundamental mode loss and modal discrimination by assuming a Gaussian-shaped reflectivity for the output plane mirror.