Statistical characterization of intermodal crosstalk in direct detection schemes: M-PAM versus DMT

Authors: Kaoutar Benyahya¹, Amirhossein Ghazisaeidi¹, Christian Simonneau², Guillaume Labroille³, Antonin billaud³, Marianne Bigot⁴, Pierre Sillard⁴, Jérémie Renaudier¹

¹ Nokia Bell-Labs, Route de Villejust, 91620, Nozay, France, kaoutar.benyahya@nokia-bell-labs.com
² Alcatel submarine networks, paris-saclay, 7 route de Villejust, 91620, Nozay, France
³ Cailabs SAS, 38 Boulevard Albert 1er, 35200, Rennes, France
⁴Prysmian Group, Parc des industries Artois Flandres, 644 boulevard Est, 62092 Haisnes, France

Abstract

Transmissions over multimode fibers can be done using different techniques, nevertheless, inter-model crosstalk is a main limiting factor for high data rate transmissions. We characterize the statistics of the inter-modal crosstalk in direct detection M-PAM and DMT systems and assess their relative advantages and disadvantages.