Use of First-Order Diffraction Wavelengths Corresponding to Dual-Grating Periodicities in a Single Fiber Bragg Grating for Simultaneous Temperature and Strain Measurement
Yam, Sui Pan and Brodzeli, Zourab and Wade, Scott A and Baxter, Gregory W and Collins, Stephen F (2009) Use of First-Order Diffraction Wavelengths Corresponding to Dual-Grating Periodicities in a Single Fiber Bragg Grating for Simultaneous Temperature and Strain Measurement. Measurement Science and Technology, 20 (3). ISSN 0957-0233Full text for this resource is not available from the Research Repository.
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.
|Uncontrolled Keywords:||ResPubID: 16150, Fiber Bragg grating sensor, Bragg wavelength, simultaneous temperature, strain measurement|
|Subjects:||FOR Classification > 1099 Other Technology
Faculty/School/Research Centre/Department > Centre for Telecommunications and Micro-Electronics (CTME)
SEO Classification > 8615 Instrumentation
|Date Deposited:||19 Jan 2010 04:50|
|Last Modified:||05 Sep 2011 05:24|
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|Citations in Scopus:||8 - View on Scopus|
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