Distributed Temperature Fiber Sensing (DTS) module based on the Raman scattering principle, a single optical fiber as a transmission, the use of optical fiber inside the Stokes light and anti-Stokes light on the temperature of the different degree of sensitivity to temperature. Distributed Temperature Fiber Sensing (DTS) module based on the Raman scattering principle, a single optical fiber as a transmission, the use of optical fiber inside the Stokes light and anti-Stokes light on the temperature of the different degree of sensitivity to temperature. Distributed temperature sensing (DTS) measures temperature distribution over the length of an optical fiber cable using the fiber itself as the sensing element. These fiber optic systems precisely measure the temperature profile of an asset by interpreting the. With over 40 years of experience in fiber optic test equipment for field measurements and monitoring systems, VIAVI migrates its knowledge and technology to Distributed Fiber Sensing Applications. The VIAVI Distributed Temperature Sensing (DTS) solution is based on Raman scattering technology. Raman scattering is due to the thermal vibration of the fiber molecule, which produces a light. For distributed optical fiber temperature sensing applications, Ensure has launched integrated DTS modules with built-in acquisition cards. These modules internally integrate the DTS Raman light source, WDM, APD detector, and acquisition card, directly outputting temperature information through the.