Stepanov D. Assessment transmission parameters of dielectric self-supporting optical cable in operating conditions

The Object - estimation of transmission parameters of the dielectric self-supporting optical cable (SSOCd) in operating conditions. Subject - the transmission parameters of different structures of the dielectric self-supporting optical cable. Methods: for the tasks solution in the work are used: the methods of the transmission lines theory for researches and optimization of structures SSOCd, the methods of optical communication physics for researches the transmission parameters of optical fiber, the methods of elasticity theory for researches of the fictitious mechanical tension optical cable and their elements, methods of computer simulation for experimental studies. Theoretical and practical results: proposed some methods and mathematical models for determining the optical and mechanical parameters of the dielectric self-supporting optical cable in a static state and under the influence of maximal periodic physical and climatic loads of different areas of operation, developed the assembly curves of installation sag, which allow to suspend the optical cable at different temperatures and are expected to provide transmission parameters for the duration of the service. For the first time developed a method for determining the transmission parameters (attenuation coefficient, dispersion and bandwidth) SSOCd, which allow to estimate the transmission characteristics of cables in the longitudinal deformation and increase the accuracy of calculating the regeneration section length of the fiber-optic transmission systems for the periodic appearance of the maximum wind load and glaze. Experimental researches of the transmission parameters SSOCd differ from the results of calculations performed in the dissertation, by 5 %, which confirms the validity of the developed method.