Progress on developing a multiaxis fiber optic strain sensor

This paper overviews recent progress made on the development of a 3 axis fiber optic strain sensor that has the potential to measure temperature as well. Initial efforts have been conducted to demonstrate the performance potential of an approach using dual overlaid fiber gratings written at 1300 and 1550 nm written onto conventional polarization maintaining fiber. This paper reports on some of the results of this study and indicates the direction of future efforts to develop a multiplexable, single point three axis strain and temperature fiber grating sensor.