Title :
Beam propagation method tailored for step-index waveguides
Author_Institution :
Bell Labs., Lucent Technol., Holmdel, NJ, USA
fDate :
2/1/2001 12:00:00 AM
Abstract :
We present a scalar beam propagation method (BPM) that is tailored for step-index waveguides. For many structures, especially periodic ones such as star couplers, it is many times faster than and avoids the spatial quantization of existing BPMs. It can handle large propagation angles but not very large effective index steps and does not perfectly preserve energy. We provide the two-dimensional version in C-language code.
Keywords :
C language; Fourier transform optics; finite difference methods; optical arrays; optical couplers; optical planar waveguides; optical waveguide theory; periodic structures; physics computing; C-language code; beam propagation method; effective index steps; periodic structures; propagation angles; scalar beam propagation method; spatial quantization; star couplers; step-index waveguides; two-dimensional version; Couplers; Finite difference methods; Fourier transforms; Optical filters; Optical propagation; Optical switches; Optical waveguides; Periodic structures; Quantization; Switching circuits;
Journal_Title :
Photonics Technology Letters, IEEE
