Title :
An efficient scalar finite element formulation for nonlinear optical channel waveguides
Author :
Niiyama, Akira ; Koshiba, Masanori ; Tsuji, Yasuhide
Author_Institution :
Dept. of Electron. Eng., Hokkaido Univ., Sapporo, Japan
fDate :
9/1/1995 12:00:00 AM
Abstract :
A self-consistent numerical approach based on the scalar finite element method is described for the analysis of both TE-like and TM-like nonlinear guided waves in optical channel waveguides. In order to improve the convergence and accuracy of solutions, isoparametric elements and numerical integration formulae derived by Hammer et al. are introduced. Numerical results are presented for nonlinear elliptical core optical fibers, and it is confirmed that in this approach, highly accurate solutions can be obtained with small scale computation. Furthermore, graded-index nonlinear optical channel waveguides are also analyzed, and the influence of refractive-index profiles on propagation characteristics of the nonlinear guided waves is investigated
Keywords :
finite element analysis; gradient index optics; nonlinear optics; optical fibre theory; optical waveguide theory; refractive index; TE-like; TM-like; accuracy; convergence; graded-index nonlinear optical channel waveguides; isoparametric elements; nonlinear elliptical core optical fibers; nonlinear guided waves; nonlinear optical channel waveguides; numerical integration formulae; propagation characteristics; refractive-index profiles; scalar finite element formulation; self-consistent numerical approach; small scale computation; Fiber nonlinear optics; Finite element methods; Modal analysis; Nonlinear optics; Optical refraction; Optical sensors; Optical signal processing; Optical variables control; Optical waveguides; Planar waveguides;
Journal_Title :
Lightwave Technology, Journal of
Conference_Location :
9/1/1995 12:00:00 AM
