Investigation of the long-term stability of arc-induced gratings heat treated at high temperatures |
| |
| Authors: | Gaspar Rego,Paulo Caldas,Oleg Ivanov,José Luí s Santos |
| |
| Affiliation: | a Escola Sup. de Tecnologia e Gestão, IPVC, Av. do Atlântico, 4900-348 Viana do Castelo, Portugalb UOSE INESC-Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugalc Fac. de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugald Ulyanovsk Branch of Kotel'nikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences, ul. Goncharova 48, Ulyanovsk 432011, Russiae Ulyanovsk State University, ul. Tolstogo, 42, Ulyanovsk 432000, Russia |
| |
| Abstract: | A long-period grating written in the SMF-28 fibre was heat treated at 1000 °C for 15 days. The spectrum of the grating shifted to longer wavelengths and the resonances depth decreased as a result of structural relaxation. The background loss increased considerably for times longer than 200 h, and this loss is caused by devitrification of the fibre. |
| |
| Keywords: | Optical fibre Fibre gratings Long-period fibre gratings Optical fibre sensors High temperature sensors |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
