Title :
A novel beam propagation method for large refractive index steps and large propagation distance
Author :
Splett, A. ; Majd, M. ; Petermann, K.
Author_Institution :
Inst. fuer Hochfrequenztechnik, Tech. Univ. Berlin, Germany
fDate :
5/1/1991 12:00:00 AM
Abstract :
Within the accuracy of the scalar equation, a novel beam propagation method (BPM) is proposed for the calculation of integrated optical waveguide structures with large refractive index steps Delta n. Propagation increments in excess of a wavelength are possible for Delta n approximately=2.5. In this way, high stability and accuracy can be maintained over a large total propagation length. The calculation time is kept low by using a finite-difference scheme.<>
Keywords :
difference equations; integrated optics; optical waveguide theory; refractive index; beam propagation method; calculation time; finite-difference scheme; high stability; integrated optical waveguide structures; large propagation distance; large refractive index steps; scalar equation; Finite difference methods; Integrated optics; Optical propagation; Optical refraction; Optical surface waves; Optical variables control; Optical waveguides; Partial differential equations; Refractive index; Stability;
Journal_Title :
Photonics Technology Letters, IEEE
