0304028 - URE-Y 20020109 RIV US eng J - Journal Article
Čtyroký, Jiří - Helfert, S. - Pregla, R. - Bienstman, P. - Baets, R. - Ridder, D. - Stoffer, R. - Klaasse, G. - Petráček, J. - Lalanne, P. - Hugonin, J. P. - De La Rue, R. M.
Bragg waveguide gratings as a 1D photonic band gap structure: COST 268 modelling task.
Optical and Quantum Electronics. Roč. 34, 5/6 (2002), s. 455-470. ISSN 0306-8919. E-ISSN 1572-817X
R&D Projects: GA MŠMT OC 268.10; GA ČR GA202/98/P274
Grant - others:DWRC(BE) IUAPIV-13
Institutional research plan: CEZ:AV0Z2067918
Keywords : optical waveguide theory * photonic band gap * Bragg gratings
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering
Impact factor: 0.732, year: 2002

Model 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.
Permanent Link: http://hdl.handle.net/11104/0114172