Measuring Method for Differential Sensing Gratings Modulated with Matching Grating
In order to increase the sensitivity, a new measuring method is proposed that two sensing fiber gratings change differentially modulated with a matching grating. The simulation of this method indicates that it can raise the sensitivity one time higher than that of a sensing fiber grating, as well as restrict the effect of temperature.
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
J. Shao et al., "Measuring Method for Differential Sensing Gratings Modulated with Matching Grating", Advanced Materials Research, Vols. 291-294, pp. 2639-2642, 2011