An Optimization Process for Raman-Amplified Long-Span Transmission

Abstract

We propose a decomposition of bidirectionally pumped Raman-amplified long spans into two independent amplifiers. This decomposition leads to a simple optimization process of the transmission. An example of a 10-Gb/s wavelength-division multiplexed system, consisting of 14 200-km spans, is described. It presents the optimization of cogain and countergain levels, including constraints from double Rayleigh backscattering and repeaters. We also generalize this procedure to other span lengths.

Multi-level optimization of a fiber transmission system via nonlinearity management

“…In previous works [3][4][5][6][7][8][9][10][11], a variety of optimization approaches have been proposed and discussed. In the methodology proposed here we develop and combine for the first time different techniques into a coherent, detailed and self-contained strategy for the optimization of an entire optical transmission system.…”