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SPATIAL PARALLELISM OF HIGH-SPEED TRANSMISSION
OF INFORMATION OVER OPTICAL FIBRES
Vladimir N. Korshunov, Moscow Technical University of Communications and Informatics, Moscow, Russia, mes@mtuci.ru
Irina A. Ovchinnikova, All-Russian Research Institute of Cable Industry, Moscow, Russia, irovchinnikova@gmail.com
Nadezhda A. Shishova, Moscow Technical University of Communications and Informatics, Moscow, Russia, n.a.shishova@mtuci.ru
Abstract
The article introduces and applies the parameter P – factor of parallelism, gives expressions for calculating the spectral efficiency and data transfer rate, provides examples of the implementation of spatial parallelism. Parallelism of information transmission in optical fibers is carried out through the use of polarization, spectral, mode, core multiplexing with multiplexing coefficients – parallelism multipliers Pi. The multiplier of spatial parallelism of Psp corresponds to the number of spatial channels created by methods and means of mode and core multiplexing. Elementary, complex and integral parallelism multipliers allow estimating the bandwidth of optical fiber, including software-configurable optical networks with a choice of route, modulation format, spectrum width, fiber cores involved. The spatial parallelism multiplier in optical fiber as part of an optical cable which is integrated in a fiber-optic transmission system is used to calculate the values of the spectral efficiency components and the aggregated data rate. The spectral efficiency components are formed by comparing the result and resource of the optical fiber bandwidth shaping operation. Expressions are given to calculate the spectral efficiency and to determine the transmission rate in the conditions of optical signals propagation spatial parallelism realization.
Keywords: the parallelism of information transfer, concurrency multiplier, spatial multiplexing, spectral efficiency, data rate.
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Information about authors:
Vladimir N. Korshunov, Moscow Technical University of Communications and Informatics, full doctor of technical science, professor of the «Telecommunication Systems» chair, Moscow, Russia
Irina A. Ovchinnikova, All-Russian Research Institute of Cable Industry, Director of Scientific Direction – Head of the Department of Cables and Wires for Telecommunications and Informatization, candidate of sciences in technology, Moscow, Russia
Nadezhda A. Shishova, Moscow Technical University of Communications and Informatics, PhD, associate professor, head of the «Telecommunication Systems» chair, Moscow, Russia