Oleg V. Butov, Konstantin M. Golant, Yaroslav V. Gousev, Alexandr N. Sokolov, Pierre Niay, Arif Hidayat, Marc Douay
The results of thermal tests of high-temperature Bragg gratings written in a nitrogen-doped-silica-core fiber are presented. The gratings were produced by the conventional technique using an ArF excimer laser and a phase mask at various exposure regimes. The possible physical mechanisms responsible for thermal decay of the gratings are analyzed. Based on the results obtained, high-temperature sensors of physical quantities have been developed. The sensors can withstand heating up to 900°C.
Fiber Optics Research Center, GPI, RAS, Moscow, 38 Vavilov Street, Russian Federation; Business-Unitech Co. Ltd., Moscow, 1 Stromynka Street, Russian Federation; Laboratoire de PhLAM, UMR 8253, Bâtiment P5, 59655 Villeneuve d'Ascq Cedex, France; Jurusan Fisika Institute, FMIPA, Universitas Negeri Malang 65145, Malang, Indonesia
