Brillouin optical time-domain analyzer(English)

• method that allows for strain measurements in the microstrain range, with a typical spatial resolution of 1 m and a maximum sensing range of 50 km. Spatial resolution, i.e. the ability to measure deformation and temperature changes in a distributed way, can be achieved through the use of a pulsed pump beam. By recording the intensity of the Stokes radiation as a function of time, the Brillouin gain can be traced in each section
• BFS
• Photonics
• https://doi.org…mge.2015.01.008