Development of Fiber Bragg Grating-Based Temperature Insensitive Novel All Optical Tilt Sensor

A novel design strategy for the development of FBG based all optical, temperature insensitive tilt sensor is proposed. Response characteristics of the proposed sensor is theoretical analyzed and experimentally established. An excellent sensitivity of 0.0415 nm degrees, that can be further tuned to the desired value, along with remarkable accuracy of +/- 0.024 degrees, extremely low maximum discrepancy of +/- 0.001 nm and an angular resolution of 0.012 degrees are observed for the sensor. Sensor is also characterized with high degree of reversibility, reliability and repeatability.