λ-selection strategy in C+L band 1-Pbit/s (448 WDM/19-core/128 Gbit/s/channel) flex-grid space division multiplexed transmission

Abstract

In this paper, an inter-core crosstalk based wavelength selection scheme has been proposed for flex-grid super-channels in space division multiplexed transmission. The two λ-selection strategies are categorized as: (a) aligned wavelength super-channels (Aλ-SCs), where all super-channels are placed at same λ in all the cores and (b) interleaved wavelength super-channels (Iλ-SCs), where all super-channels are placed at different λ in all the neighboring cores. It is depicted that system performance is improved for DP-16QAM channels in 1-Pbit/s (448 WDM/19 Core/128 Gbit/s/channel) 60 km fiber link, when Iλ-SCs scheme is implemented.