Thermal dependence of the strain response of optical fibre Bragg gratings.
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O'Dwyer, Martin
Ye, Chen-Chun
James, Stephen W.
Tatam, Ralph P.
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0957-0233
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Martin J O'Dwyer, Chen-Chun Ye, Stephen W James and Ralph P Tatam; Thermal dependence of the strain response of optical fibre Bragg gratings, Measurement Science and Technology, Vol. 15, No. 8, Special Issue: Optical Fiber Sensors 16, August 2004, pp1607-1613
Abstract
The temperature dependence of the strain sensitivity of fibre Bragg gratings written into a number of different fibre types has been investigated. It was found that the strain response changed on average by 0.21 ± 0.03 fm µε-1 °C-1 over a range of temperatures between 100–400 °C. These results were in agreement with predictions based on material parameters.
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Keywords
Bragg gratings, strain response, temperature dependence