| Authors: | J. Ctyroky, S. Helfert, R. Pregla, P. Bienstman, R. Baets, R. De Ridder, R. Stoffer, G. Klaasse, J. Petracek, P. Lalanne, J.-P. Hugonin, R.M. De La Rue | | Title: | Bragg waveguide grating as a 1D photonic band gap structure: COST 268 modelling task | | Format: | International Journal | | Publication date: | 6/2002 | | Journal/Conference/Book: | Optical and Quantum Electronics
| | Editor/Publisher: | Kluwer Academic Publishers, | | Volume(Issue): | 34(5/6) p.455-470 | | DOI: | 10.1007/bf02892610 | | Citations: | 31 (Dimensions.ai - last update: 14/4/2024)
13 (OpenCitations - last update: 3/5/2024)
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Abstract
Modal reflection, transmission and loss of deeply etched Bragg waveguide gratings were modelled by six European laboratories using independently developed two-dimensional (2D) numerical codes based on four different methods, with very good mutual agreement. It was found that (rather weak) material dispersion of the SiO2/Si3N4 system does not significantly affect the results. The existence of lossless Floquet-Bloch modes in deeply etched gratings was confirmed. Based on reliable numerical results, the physical origin of out-of-plane losses of 1D or 2D photonic band gap structures in slab waveguides is briefly discussed. Related Research Topics
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