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: 2021.2

: Determination of the MandelstamBrillouin scatter spectrum profile in optical fibers of various types

The research results of the frequency characteristics of the MandelstamBrillouin scattering in
single-mode optical fibers are presented in this article. A method for obtaining the distribution
characteristics of optical and acoustic modes in single-mode optical fibers is considered. The procedure for determining the profile of the MandelstamBrillouin scatter spectrum with known fiber structure is demonstrated. The profiles of the MandelstamBrillouin scatter spectrum of singlemode optical fibers obtained during experimental studies are presented.

I. V. Bogachkov

single-mode optical fiber, fiber core structure, acoustic mode, early diagnostic of the
fiber state, Brillouin reflectometry, MandelstamBrillouin scatter spectrum profile.