All-fibre interrogation technique for fibreBragg sensors using a biconical fibre filter
- 15 February 1996
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 32 (4) , 382-383
- https://doi.org/10.1049/el:19960260
Abstract
A passive self-referencing all-fibre technique for Bragg wavelength shift detection using a biconical fibre filter is described. This filter, basically a tapered depressed-cladding fibre, exhibits a periodic spectral power dependence which permits direct tracking of wavelength shifts in a 20 nm unambiguous range. Dynamic strain resolution of 1.5 µstrain/√Hz has been achieved.Keywords
This publication has 6 references indexed in Scilit:
- Use of highly overcoupledcouplers to detect shifts in BraggwavelengthElectronics Letters, 1995
- All-fibre Bragg grating strain-sensor demodulationtechnique using a wavelength division couplerElectronics Letters, 1994
- Interrogation and multiplexing techniques for fiber Bragg grating strain sensorsPublished by SPIE-Intl Soc Optical Eng ,1993
- Novel interrogating system for fibre Bragg grating sensors using an acousto-optic tunable filterElectronics Letters, 1993
- A passive wavelength demodulation system for guided-wave Bragg grating sensorsIEEE Photonics Technology Letters, 1992
- High-resolution fibre-grating based strain sensor with interferometric wavelength-shift detectionElectronics Letters, 1992