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Iterative refinement technique for reconstructing refractive index profiles from mode indices

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5 Author(s)
Oven, R. ; Electron. Eng. Labs., Kent Univ., Canterbury, UK ; Batchelor, S. ; Ashworth, D.G. ; Gelder, D.
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A method is presented whereby the refractive index profile of a planar, surface, dielectric optical waveguide may be reconstructed from a measured set of effective refractive indices in a way that is consistent with the Helmholtz equation. Profiles are compared with those obtained by conventional techniques which use the Wentzel-Kramers-Brillouin (WKB) approximation

Published in:

Electronics Letters  (Volume:31 ,  Issue: 3 )