Abstract
A new bidirectional beam propagation method is developed for numerical simulation of wave-guiding structures with multiple longitudinal reflecting interfaces. It is an iterative method that works on the wave field components directly. Operator rational approximations developed in the one-way beam propagation method are used together with a modern Krylov subspace iterative method. Compared with earlier bidirectional beam propagation methods based on the transfer matrix formulation, the new method is numerically stable and models evanescent modes better.
| Original language | English |
|---|---|
| Pages (from-to) | 1533-1535 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 14 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 2002 |
Research Keywords
- Approximation methods
- Numerical analysis
- Optical propagation
- Optical waveguides
- Rational approximation
- Scattering
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