The spectral properties of a single-mode planar deep waveguide Bragg grating (DWBG) operating on the first diffraction order are investigated by a spatial harmonics theoretical approach. This analytical method allows us to evaluate the most important features of the propagating fields. In particular, the slowdown of the group electromagnetic propagation near the photonic band-edges is accurately modelled with a minimal computational effort, which makes this tool useful for preliminary analysis of periodic waveguides.
Spatial Harmonics analysis of Deep Waveguide Bragg Gratings
BELLANCA, Gaetano;
2004
Abstract
The spectral properties of a single-mode planar deep waveguide Bragg grating (DWBG) operating on the first diffraction order are investigated by a spatial harmonics theoretical approach. This analytical method allows us to evaluate the most important features of the propagating fields. In particular, the slowdown of the group electromagnetic propagation near the photonic band-edges is accurately modelled with a minimal computational effort, which makes this tool useful for preliminary analysis of periodic waveguides.File in questo prodotto:
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