Publication detail
Bragg waveguide grating as a 1D photonic bandgap structure: COST 268 modelling task
ČTYROKÝ, J. HELFERT, S. PREGLA, R. BIENSTMAN, P. BAETS, R. RIDDER, R. STOFFER, R. KLAASSE, G. PETRÁČEK, J. LALANNE, P. HUGONIN, J. DE LA RUE, R.
Czech title
Braggovská vlnovodná mřížka jako jednorozměrná struktura s fotonickým zakázaným pásem: úkol COST 268
English title
Bragg waveguide grating as a 1D photonic bandgap structure: COST 268 modelling task
Type
journal article - other
Language
en
Original abstract
Modal reflection, transmission and loss of deeply etched Bragg waveguide gratings were modelled by six European laboratories using independently developed 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 bandgap structures in slab waveguides is briefly discussed.
Czech abstract
Byla modelována vidová odrazivost, propustnost a ztráty v hluboce leptané braggovské vlnovodné mřížce. Modelování se zúčastnilo 6 evropských pracovišť se svými, nezávisle vyvinutými, numerickými programy, které byly založeny na 4 různých metodách. Vzájemné porovnání výsledků prokázalo velmi dobrý souhlas jednotlivých metod.
English abstract
Modal reflection, transmission and loss of deeply etched Bragg waveguide gratings were modelled by six European laboratories using independently developed 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 bandgap structures in slab waveguides is briefly discussed.
Keywords in English
Photonic bandgap structure, photonic crystal, optical waveguide modelling, waveguide grating
RIV year
2003
Released
01.05.2002
ISSN
0306-8919
Volume
34
Number
5/6
Pages count
470
BIBTEX
@article{BUT41968,
author="Jiří {Čtyroký} and Stephan {Helfert} and Reinhold {Pregla} and Peter {Bienstman} and Roel {Baets} and René {Ridder} and Remco {Stoffer} and G. {Klaasse} and Jiří {Petráček} and Pierre {Lalanne} and Jean-P {Hugonin} and Richard {De La Rue},
title="Bragg waveguide grating as a 1D photonic bandgap structure: COST 268 modelling task",
year="2002",
volume="34",
number="5/6",
month="May",
issn="0306-8919"
}