Title :
Simultaneous refractive index and temperature measurement using cascaded long-period grating in double-cladding fibre
Author :
Gwandu, Bashir A L ; Shu, Xiaokui ; Allsop, T.D.P. ; Zhang, Wensheng ; Zhang, Leiqi ; Webb, David J. ; Bennion, I.
Author_Institution :
Dept. of Electron. Eng., Aston Univ., Birmingham
fDate :
7/4/2002 12:00:00 AM
Abstract :
A compact scheme for simultaneous temperature and surrounding refractive index (SRI) measurement using two long-period gratings (LPGs) of different periods inscribed side-by-side in a single piece of a double-cladding fibre is presented. One of the LPGs is sensitive to both SRI and temperature, whilst the second is sensitive to temperature only
Keywords :
diffraction gratings; fibre optic sensors; refractive index measurement; temperature measurement; temperature sensors; cascaded long-period grating; compact scheme; double-cladding fibre; refractive index measurement; simultaneous measurement; temperature measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020498
