Distributed optical fiber Raman photonic sensor system

Distributed optical fiber Raman photonic sensor(DOFRPS) system is an optical fiber network used for the real-time measurement of temperature field,strain field and pressure field in the space.Spontaneous Raman scattering photons are the carriers of temperature signal and the Rayleigh scattering photons are the carriers of strain and pressure signal. DOFRPS system is a special optical fiber communication system, as well as a kind of optical fiber radar. The configuration and demodulation method of the DOFRPS system are discussed in the paper along with the selection of LD wavelength and signal noise ratio