Experimental examinations of changes influence of the Brillouin backscattering spectrum in optical fibers on their characteristics

The results of experimental examination of the strain (mechanical stresses) characteristics of different type optical fibers based on Brillouin backscattering spectrum analysis are presented. Also here are discussed temperature dependences of Brillouin backscattering spectrum changes of the optical fibers. The received results confirmed a possibility to detect problem (mechanical stressed) sections and estimations of the optical fiber strain degree on the basis of the Brillouin reflectometry method at different mechanical influences.