Abstract

We propose a method for calibrating the frequency dependent I/Q imbalance in coherent optical transmitters. We demonstrate that with our calibration, the OSNR penalty of a 58-GBaud 256-QAM signal can be reduced by 2.5 dB.

© 2021 The Author(s)

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More Like This
Hybrid Frequency-Time Domain Tx and Rx I/Q Imbalance Compensation for Coherent Optical OFDM Transmission

Simin Chen, Abdullah Al Amin, and William Shieh
79880Q Asia Communications and Photonics Conference and Exhibition (ACP) 2010

Transmitter IQ Imbalance Compensation in Single Sideband Direct Detection System with 2x2 MIMO Equalizer

Wei Wang, Dongdong Zou, Xiaowu Wang, Zhaohui Li, and Fan Li
T4A.84 Asia Communications and Photonics Conference (ACPC) 2021

Experimental Demonstration of Accurate Machine Learning Aided IQ Imbalance Calibration for Coherent Optical Transmitters

Xiaoxiao Dai, Ming Luo, Zhixue He, Xiang Li, and Shaohua Yu
M4A.76 Asia Communications and Photonics Conference (ACPC) 2019