Slow-wave finite-difference beam propagation method
- 1 August 1995
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 7 (8) , 890-892
- https://doi.org/10.1109/68.404005
Abstract
By invoking the slow-wave approximation, the wave equation resumes the form of the Fresnel equation. Codes developed previously for the paraxial beam propagation can be extended to simulate the backward reflection and diffraction at any angle. Results of planar waveguide gratings and a beveled corner bend are presented.Keywords
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