Enhanced sensitivity fibre optic long period grating temperature sensor
Abstract
Surrounding a long period grating (LPG), fabricated in a standard optical fibre, with a material with a high thermo-optic coefficient enhances the temperature sensitivity of the LPG. Temperature sensitivities as high as 19 nm °C-1 are reported over a temperature range of 1.1 °C. The temperatures at which the LPG exhibits enhanced sensitivity may be tailored by a suitable choice of material.
- Publication:
-
Measurement Science and Technology
- Pub Date:
- May 2002
- DOI:
- 10.1088/0957-0233/13/5/318
- Bibcode:
- 2002MeScT..13..792K