Xiansong Fang

Jan 29, 2024 | opg.optica.org | Xiansong Fang |Chuanchuan Yang |fan zhang |Zhangyuan Chen

Inter-channel nonlinearity compensation plays a crucial role in wavelength division multiplexing (WDM) systems for improving transmission capacity and distance. In this work, we propose a novel, to the best of our knowledge, inter-channel nonlinearity compensation method called generalized Rayleigh quotient optimization (GRQO) method with two different working modes.

Jul 27, 2023 | opg.optica.org | Chuanchuan Yang |fan zhang |Xinyu Chen |Xiansong Fang

AbstractFiber nonlinearity mitigation is a crucial technology for extending transmission reach and increasing channel capacity in high-baud rate wavelength division multiplexing (WDM) systems. In this work, we propose a novel, to the best of our knowledge, architecture that combines learned modified digital back-propagation (L-MDBP) to compensate for intra-channel nonlinearity and a two-stage decision-directed least mean square (DDLMS) adaptive equalizer to mitigate inter-channel nonlinearity.