400gbps PM-16QAM系统中改进型宽线性滤波器的IQ偏差容限研究

2021 Photonics North (PN) Pub Date : 2021-05-31 DOI:10.1109/PN52152.2021.9597944

Lakshmi Narayanan Venktasubramani, Rekha Yadav, R. D. Koilpillai, D. Venkitesh

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引用次数: 0

摘要

在448 Gbps PM-16QAM系统中，采用联合均衡器进行极化解复用、IQ增益和相位不平衡，并采用改进的宽线性自适应滤波器进行载波恢复，研究了接收机IQ偏斜对系统的影响。通过数值模拟，我们表明联合均衡器算法的性能在标准HD-FEC极限3.8 x 10−3误码率范围内，OSNR为24 dB，歪斜容限高达符号持续时间的70%。

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IQ Skew Tolerance Study of Modified Widely Linear Filter in 400 Gbps PM-16QAM System

We study the effect of receiver IQ skew in the 448 Gbps PM-16QAM system employing a joint equalizer for polarization demultiplexing, IQ gain and phase imbalance and carrier recovery with a modified widely linear adaptive filter. Through numerical simulations, we show the performance of the joint equalizer algorithm is within the standard HD-FEC limit of 3.8 x 10−3 BER at an OSNR of 24 dB and skew tolerance upto ~ 70% of symbol duration.

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2021 Photonics North (PN)

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