Behaviour of long-period grating in a fibre with parabolic-index cladding: theoretical description

0304203 - URE-Y 20030076 ES eng A - Abstract
Čtyroký, Jiří - Chomát, Miroslav - Matějec, Vlastimil
Behaviour of long-period grating in a fibre with parabolic-index cladding: theoretical description.
Badajoz: FORMATEX, 2003. Book of Abstracts 1st International Meeting on Applied Physics. s. 915
[APHYS-2003 /1./. 13.10.2003-18.10.2003, Badajoz]
R&D Projects: GA ČR GA102/03/0475
Institutional research plan: CEZ:AV0Z2067918
Keywords : optical fibres * optical sensors
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

Long-period gratings /LPG/ in single-mode fibres with a regular parabolic-index profile in the fibre cladding were analyzed theoretically. By using a 2D-bidirectional mode expansion and propagation /BEP/ method for planar waveguides for numerical modelling, LPG transmission spectra were obtained. It has been found that the core-cladding modal coupling is stronger than in comparable standard step-index fibres and that the LPG tranmission spectra are basically unaffected by the external refractive index.
Permanent Link: http://hdl.handle.net/11104/0114344