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Nonlinear effects in high-spectral-efficiency transmission using differential polarization-phase-shift keying

机译:使用差分极化相移键控的高光谱效率传输中的非线性效应

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摘要

The effect of optical nonlinearities on the fiber transmission of differential polarization-phase-shift keying (DPolPSK) signals is analyzed. For single-channel transmission, the effect of self-phase modulation depends on the order of the DPolPSK. In dense wavelength-division multiplexing, the dominant nonlinear effect is cross-phase-modulation-induced polarization scattering, which exists even if there is no intensity noise. It is found that differential detection greatly reduces the effect of polarization scattering in DPolPSK. Unlike in conventional polarization-division-multiplexed intensity-modulated direct-detection systems, the effect of polarization scattering strongly depends on the channel spacing and bit rate.
机译:分析了光学非线性对差分偏振相移键控(DPolPSK)信号的光纤传输的影响。对于单通道传输,自相位调制的效果取决于DPolPSK的顺序。在密集波分复用中,主要的非线性效应是交叉相位调制引起的偏振散射,即使没有强度噪声也存在。发现差分检测大大降低了DPolPSK中偏振散射的影响。与传统的偏振-分割-复用强度调制直接检测系统不同,偏振散射的效果在很大程度上取决于信道间隔和比特率。

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