Research of distributed optical fiber temperature sensor based on Raman scattering

The working principle and temperature measurement of distributed optical fiber temperature sensor based on Raman scattering is introduced.The progress of distributed optical fiber temperature sensor based on Raman scattering is outlined from several aspects such as temperature resolution,spatial resolution,measuring distance,temperature accuracy and stability,et al.In order to the wider application of the sensor,its current inadequacies and there future trends are discussed.