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Slow-wave finite-difference beam propagation method

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3 Author(s)
Pao-Lo Liu ; Dept. of Electr. & Comput. Eng., State Univ. of New York, Buffalo, NY, USA ; Qida Zhao ; Fow-Sen Choa

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.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:7 ,  Issue: 8 )