Title :
Numerical analysis of three-parallel embedded optical waveguides
Author :
Kubo, Hiroshi ; Yasumoto, Kiyotoshi
Author_Institution :
Dept. of Comput. Sci. & Commun. Eng., Kyushu Univ., Fukuoka, Japan
fDate :
12/1/1989 12:00:00 AM
Abstract :
Three parallel embedded dielectric waveguides are investigated numerically. The mode-matching method that matches the boundary conditions in the sense of least squares is applied to this problem, using the hybrid-modal representation. Precise numerical results for the dispersion relations and field distributions are presented for the lowest three modes near the cutoff. The frequency range in which only the three modes can propagate and the differences in their propagation constants are discussed at length, in order to highlight the available frequency range and the coupling length of the configuration with respect to its use as a directional coupler
Keywords :
directional couplers; dispersion relations; numerical analysis; optical couplers; optical waveguide theory; optical waveguides; directional coupler; dispersion relations; field distributions; hybrid-modal representation; least squares; mode-matching method; parallel embedded dielectric waveguides; Boundary conditions; Dielectrics; Dispersion; Frequency; Least squares methods; Mode matching methods; Numerical analysis; Optical sensors; Optical waveguides; Propagation constant;
Journal_Title :
Lightwave Technology, Journal of
