Laser Raman spectrum of optical fiber and the measurement of temperature field in space

The temperature effect of laser Raman scattering spectrum of optical fiber was researched. We applied the optical time domain reflection technique of optical fiber, laser Raman scattering spectrometry, bi-wavelength two channel detection technique, high speed instantaneous state wave-shape sample average technique and computer technique to the distributed optical fiber sensor temperature system, use it for the measurement of temperature field in space.