The method for a measurement of the excess fiber length on the cable delivery length by using the polarization reflectometry

摘要

In present paper is considered the method for measuring the excess fiber length in the loose-tube optical cable. This method based on measurements of backscattering characteristics with one polarization of optical fibers under sub-zero temperature. The correctness of the method was evaluated by the errors of linear approximation of the dependence of the excess fiber length from temperature under climatic test of optical cable delivery length at sub-zero temperatures. The results of the method verification are presented in this paper.