Wang Zhe, Qiao Yaojun, Xu Yanfei, Ji Yuefeng
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China.
Opt Express. 2013 Jul 29;21(15):18034-42. doi: 10.1364/OE.21.018034.
We show for the first time through comprehensive simulations under both uncompensated transmission (UT) and dispersion managed transmission (DMT) systems that the statistical distribution of the nonlinear interference (NLI) within the polarization multiplexed 16-state quadrature amplitude modulation (PM-16QAM) Coherent Optical OFDM (CO-OFDM) system deviates from Gaussian distribution in the absence of amplified spontaneous emission (ASE) noise. We also observe that the dependences of the variance of the NLI noise on both the launch power and the transmission distance (logrithm) seem to be in a simple linear way.
我们首次通过在未补偿传输（UT）和色散管理传输（DMT）系统下的全面模拟表明，在不存在放大自发辐射（ASE）噪声的情况下，偏振复用16状态正交幅度调制（PM-16QAM）相干光正交频分复用（CO-OFDM）系统内非线性干扰（NLI）的统计分布偏离高斯分布。我们还观察到，NLI噪声方差对发射功率和传输距离（对数）的依赖性似乎呈简单的线性关系。
