Title :
Variational coupled-mode theory of optical couplers
Author :
Huang, Weiping ; Chaudhuri, Sujeet K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
10/1/1990 12:00:00 AM
Abstract :
A scalar coupled-mode theory is developed from the variational principle. The formulation is variational in the sense that the mode parameters are adjustable and can be optimized subject to the coupling between the guides. The theory is applied to slab and fiber couplers. In comparison with the conventional scalar coupled-mode theory in which only the amplitudes of the modes in the individual guides are adjustable, the variational scalar coupled-mode theory predicts more accurate propagation constants and field patterns of the normal modes of the couplers
Keywords :
fibre optics; optical couplers; optical waveguide theory; variational techniques; coupled-mode theory; fiber couplers; field patterns; normal modes; optical couplers; propagation constants; slab couplers; variational principle; variational scalar coupled-mode theory; Maxwell equations; Optical coupling; Optical fiber couplers; Optical fiber theory; Optical sensors; Optical surface waves; Optical waveguide theory; Optical waveguides; Propagation constant; Slabs;
Journal_Title :
Lightwave Technology, Journal of
