Title :
Tapered beam propagation
Author :
Sewell, Phillip ; Benson, T.M. ; Kendall, P.C. ; Anada, Takahisa
Author_Institution :
Dept. of Electr. & Electron. Eng., Nottingham Univ.
fDate :
5/23/1996 12:00:00 AM
Abstract :
A novel beam propagation algorithm is presented that eliminates errors caused by modelling tapered optical structures with staircase approximations. In consequence, highly accurate results are obtained with a substantial improvement in computational efficiency. The algorithm is developed from a nonorthogonal coordinate system that intrinsically describes the taper geometry and can be implemented using conventional beam propagation techniques
Keywords :
finite difference methods; modelling; optical waveguide theory; optical waveguides; beam propagation algorithm; computational efficiency; errors; highly accurate results; modelling; nonorthogonal coordinate system; staircase approximations; taper geometry; tapered beam propagation; tapered optical structures;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960671
