Title :
Diffused waveguides: mode perturbation by thin-film cladding
Author_Institution :
University College London, Department of Electronic & Electrical Engineering, London, UK
Abstract :
Normalised parameter plots are given enabling prediction of propagation-constant perturbation in diffused optical waveguides due to a thick dielectric cladding. Refractive-index profiles of Gaussian and complementary-error-function form are treated. The variation of the number of propagating modes with time of diffusion is derived.
Keywords :
optical waveguides; diffused optical waveguides; mode perturbation; thin film cladding;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770045
