Use of tilted Bragg gratings to simultaneously measure sugar concentration and temperature during the production process of sugar

We will demonstrate the potential use of a 2 cm long 6° tilted Bragg grating for simultaneous refractive index and temperature sensing during the production process of sugar from sugarbeets. This sensor is easy to use and allows realtime measurements. Its accuracy falls within ± 0.1 % and ± 1°C for sugar concentration and temperature, respectively.