Research hotspots of distributed optic fiber sensor based on Brillouin scattering

The development of distributed optic fiber sensors based on Brillouin scattering was reviewed.After introducing the measurement principles of this technique,several research hot spots in this field were introduced,such as spatial resolution improvement,cross sensitivity for several parameters measurement,elimination of polarization fading for higher precision.Both advantages and disadvantages of each solution were pointed out.Finally some predictions of its future development were also presented.