We study the role of the modulation format in the interaction between mode dispersion and the fiber nonlinear interference (NLI) in space-division multiplexed (SDM) systems with strongly-coupled spatial modes. We show that the interplay between mode dispersion and the modulation format has a significant impact on the magnitude of cross-phase modulation (XPM). We propose a simple formula that accounts for the modulation-format dependence of the XPM variance in the presence of arbitrary levels of mode dispersion, thus extending the ergodic Gaussian noise model. (c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Dependence of nonlinear interference on mode dispersion and modulation format in strongly-coupled SDM transmissions / Lasagni, Chiara; Serena, Paolo; Bononi, Alberto; Mecozzi, Antonio; Antonelli, Cristian. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 31:11(2023), pp. 17122-17136. [10.1364/OE.484302]
Dependence of nonlinear interference on mode dispersion and modulation format in strongly-coupled SDM transmissions
Lasagni, Chiara;Serena, Paolo;Bononi, Alberto;
2023-01-01
Abstract
We study the role of the modulation format in the interaction between mode dispersion and the fiber nonlinear interference (NLI) in space-division multiplexed (SDM) systems with strongly-coupled spatial modes. We show that the interplay between mode dispersion and the modulation format has a significant impact on the magnitude of cross-phase modulation (XPM). We propose a simple formula that accounts for the modulation-format dependence of the XPM variance in the presence of arbitrary levels of mode dispersion, thus extending the ergodic Gaussian noise model. (c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing AgreementI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
