Novel interrogating system for fibre Bragg grating sensors using an acousto-optic tunable filter
- 19 August 1993
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 29 (17) , 1510-1511
- https://doi.org/10.1049/el:19931006
Abstract
A new technique for the interrogation of in-fibre Bragg grating sensors using an acousto-optic tunable filter (AOTF) is demonstrated. The scheme involves frequency shift keying (FSK) of the RF drive to the AOTF to track the wavelength shifts of a Bragg grating. Experimental results are presented for temperature measurement. This technique provides a frequency-agile system, capable of rapid, random access and very wide tuning range.Keywords
This publication has 1 reference indexed in Scilit:
- Fiber Optic Bragg Grating SensorsPublished by SPIE-Intl Soc Optical Eng ,1990