Experimental researches of temperature dependences of Brillouin backscatter spectrum in optical fibers of various types

The results of experimental researches of the temperature influence on characteristics of the Brillouin backscatter spectrum and the strain of the single-mode optical fibers of different types are presented in this work. The reflectogrames and graphic dependences for the next types of optical fibers: G.652, G.653, G.655 and G.657, which were obtained during the experimental research are shown. As a result of Brillouin backscatter spectrum temperature dependence was built for different types of optical fibers. Linear dependence of the Brillouin frequency shift and the respective temperature characteristics of the strain was observed for all types of fibers. Analysis of the experiments results showed that the temperature dependence of the Brillouin frequency shift and strain of the dispersion-shifted (G.653) and non-zero dispersion-shifted (G.655) fibers significantly shifted down relative to the dependencies for the usual fiber (G.652). Characteristics of fiber G.657 and G.652 are slightly different.