Co-LSTM-based fiber link modeling with ASE noise tracking for long-haul coherent optical transmission
Jiayu Zheng, T. K. Zhang, Fan Zhang
Abstract
In this Letter, a novel, to the best of our knowledge, channel modeling scheme based on cascading chromatic dispersion-nonlinearity feature decoupling modules is proposed with the center-oriented long short-term memory (Co-LSTM) network structure adopted for modeling nonlinearity of each optical fiber span. By tracking the amplified spontaneous emission (ASE) noise at the output of each fiber span, the Co-LSTM-based channel modeling scheme achieves high waveform accuracy for long-haul coherent optical transmission compared with the conventional split-step Fourier transform method (SSFM) while saving calculation time by almost one order of magnitude.
Topics & Concepts
Amplified spontaneous emissionComputer scienceWaveformElectronic engineeringTransmission (telecommunications)Span (engineering)Nonlinear systemNoise (video)OpticsTelecommunicationsPhysicsArtificial intelligenceEngineeringLaserImage (mathematics)Quantum mechanicsRadarCivil engineeringOptical Network TechnologiesAdvanced Photonic Communication SystemsAdvanced Fiber Laser Technologies