Coherent all-optical reservoir computing for nonlinear equalization in long-haul optical fiber communication systems

• Published in: Optics and laser technology Vol. 174; p. 110697
• Main Authors: Peng, Guanju, Liu, Yaping, Li, Zheng, Zhu, Kunpeng, Yang, Zhiqun, Li, Jianping, Zhang, Shigui, Huang, Zhanhua, Zhang, Lin
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.07.2024
• Subjects: Long-haul transmission; Nonlinear equalization; Nonlinearity mitigation; Optical fiber communication; Photonic reservoir computing; Photonic reservoir computing; Long-haul transmission; Nonlinearity mitigation; Optical fiber communication; Nonlinear equalization

•A reservoir computing (RC) is operated optically without O/E/O conversion.•The all-optical RC mitigates nonlinear distortion in a 3960-km fiber link.•Phase property enhances the RC’s performance in nonlinear signal processing.•The RC improves the Q2 factor by 2.6 dB in a single-λ system and 1.9 dB...