Multi-span OSNR and GSNR Prediction using Cascaded Learning

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Publication Date: 4/3/2025

Event: OFC 2025

Reference: Tu3I.6: 1-3, 2025

Authors: Zehao Wang, Duke University, NEC Laboratories America, Inc.; Giacomo Borraccini, NEC Laboratories America, Inc.; Andrea D’Amico, NEC Laboratories America, Inc.; Yue-Kai Huang, NEC Laboratories America, Inc.; Ting Wang, NEC Laboratories America, Inc.; Dan Kilper, CONNECT Centre, Trinity College Dublin; Tingjun Chen, Duke University

Abstract: We implement a cascaded learning framework leveraging three different EDFA and fiber component models for OSNR and GSNR prediction, achieving MAEs of 0.20 and 0.14 dBover a 5-span network under dynamic channel loading.

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