High-sensitivity Fiber Bragg Grating Temperature Sensorwith Polymer Jacket

Temperature sensor is studied using a fiber Bragg grating fixed on polymer substrate.The wavelengths of reflected light from fiber Bragg gratings are measured in the temperature range from 2CTC to 100□.By driving effect of the polymer substrate, the temperature sensitivity was 83.07×10-6/□, that is 12.3 times as that of a bare fiber grating.