Opposite-parity orthonormal function expansion for efficient full-vectorial modeling of holey optical fibers.
An improved full-vectorial method exploiting the opposite-parity property of eigenmodes based on orthonormal-functions expansion is proposed to solve the wave equation for holey optical fibers. By use of the parity property of eigenmodes in symmetric structures, the number of orthonormal function integrals involved in the calculation is reduced, and the computation efficiency is greatly enhanced. The coupling between the two transverse field components is considered, and both dominant and minor field components can be calculated for the accurate modeling of fiber modes. This method is useful for efficiently modeling holey fibers, especially those with large air holes, in which the coupling effect that is due to refractive-index discontinuities is strong.
Hsueh
Yu-Li
YL
Department of Electrical Engineering, Stanford University, 350 Serra Mall, 058 Packard Building, Stanford, California 94305, USA.
Hu
Eric Shih-Tse
ES
Marhic
Michel E
ME
Kazovsky
Leonid G
LG