Serena P, Rossi N, Bononi A
Dept. of Information Engineering, Università degli Studi di Parma, 43124 Parma, Italy.
Opt Express. 2012 Mar 26;20(7):7895-900. doi: 10.1364/OE.20.007895.
We compare by simulation the performance of 100 Gbit/s PDM-iRZ-QPSK and PS-QPSK transmission both in homogeneous and hybrid QPSK/OOK DM links. We detail the reasons of the overall performance investigating each nonlinear effect (SPM, XPM and XPolM) individually. Moreover, we compare the accuracy of the noise loading method with the more realistic use of noisy in-line amplifiers. Results shows that i) PDM-iRZ-QPSK and PS-QPSK have same reach in both homogeneous and hybrid setups, ii) correct simulations must include distributed ASE.
我们通过仿真比较了100 Gbit/s偏振复用归零四相相移键控（PDM-iRZ-QPSK）和伪四相相移键控（PS-QPSK）在均匀和混合四相相移键控/开关键控（QPSK/OOK）双二进制调制链路中的传输性能。我们详细研究了每种非线性效应（自相位调制、交叉相位调制和交叉偏振调制）对整体性能的影响。此外，我们将噪声加载方法的精度与使用更逼真的带噪在线放大器的情况进行了比较。结果表明：i）在均匀和混合设置中，PDM-iRZ-QPSK和PS-QPSK具有相同的传输距离；ii）正确的仿真必须包括分布式放大自发辐射（ASE）。
