聊城大学学报（自然科学版）2018，Vol.31Issue(4)：1-6,6.DOI:10.19728/j.issn1672-6634.2018.04.001
高速短距离光互联系统中基于概率整形的SOA非线性损伤抑制
Probabilistic Shaping-PAM4 for the Nonlinear Effect Suppression in HighBit Rate Short Reach Optical Transmission System
摘要
Abstract
SOA is a promising component in future short reach transmission system due to its low cost and easy integration, which can be extensively used for booster and pre-amplifier.However, an additional drawback of SOA is that the saturation power can be low, and SOA amplified signals suffer from a considerable spectral broadening when the input power exceeds gain saturation limit.Specifically, this nonlinear effect induced pulse distortion is larger for the higher amplitude than for the lower amplitude.Thus, aiming to solve this problem, we firstly proposed to utilize probabilistic shaping PAM4 (transmitting different amplitude levels with different probability).Fortunately, the simulation result verifies that PS-PAM4 can improve BER performance effectively compared with PAM4.关键词
概率整形/PAM4/半导体光放大器Key words
probabilistic shaping/PAM4/SOA分类
数理科学引用本文复制引用
付妍,忻海云,胡卫生..高速短距离光互联系统中基于概率整形的SOA非线性损伤抑制[J].聊城大学学报（自然科学版）,2018,31(4):1-6,6.基金项目
国家自然科学基金项目 (61431009, 61521062, 61575123) 资助 （61431009, 61521062, 61575123）
