Home List of Titles Use of first-order diffraction wavelengths corresponding to dual-grating periodicities in a single fibre Bragg grating for simultaneous temperature and strain measurement
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/197550
- Use of first-order diffraction wavelengths corresponding to dual-grating periodicities in a single fibre Bragg grating for simultaneous temperature and strain measurement
- Yam, Sui P.; Brodzeli, Zourab; Wade, Scott A.; Rollinson, Claire M.; Baxter, Greg W.; Collins, Stephen F.
- A fibre Bragg grating (FBG) sensor, fabricated using a phase mask with 536 nm uniform pitch, for simultaneous temperature and strain measurement is presented. Two peaks/dips occur, at 785 and 1552 nm, due to reflection/transmission at the Bragg wavelength and at twice the Bragg wavelength, and arising primarily from FBG periodicities associated with half the phase mask periodicity and the phase mask periodicity, respectively. This grating was simple to fabricate and by having greater reflectivity at 785 nm, compared with 1552 nm, it is better suited for long-distance operation compared with similar schemes where the greater fibre attenuation at 785 nm is a significant limitation.
- Publication type
- Journal article
- Measurement Science and Technology: paper presented at the 19th International Conference on Optical Fibre Sensors (OFS-19), Perth, Western Australia, Australia, 15-18 April 2009, Vol. 20, no. 3 (Mar 2009), paper no. 034008
- Publication year
- FOR Code(s)
- 02 Physical Sciences; 09 Engineering
- Bragg wavelength; FBG; Fibre Bragg grating
- Institute of Physics Publishing
- Publisher URL
- Copyright © 2009 IOP Publishing Ltd.
- Peer reviewed