Title :
New finite-difference scheme for simulations of step-index waveguides with tilt interfaces
Author :
Xia, Jinsong ; Yu, Jinzhong
Author_Institution :
Inst. of Semicond., Chinese Acad. of Sci., Beijing, China
Abstract :
A new finite-difference scheme is presented for the second derivative of a semivectorial field in a step-index optical waveguide with tilt interfaces. The present scheme provides an accurate description of the tilt interface of the nonrectangular structure. Comparison with previously presented formulas shows the effectiveness of the present scheme.
Keywords :
finite difference methods; optical waveguide theory; vectors; finite-difference scheme; nonrectangular structure; second derivative; semivectorial field; step-index optical waveguide; step-index waveguides; tilt interfaces; Anisotropic magnetoresistance; Computational modeling; Dielectrics; Finite difference methods; Optical propagation; Optical refraction; Optical variables control; Optical waveguides; Transmission line matrix methods; Wet etching;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.816128
