Complete and Low-Complexity Frequency-Dependent IQ Crosstalk Compensation for High-Baud-Rate Coherent Optical Transceiver

We propose a complete and low-complexity compensation scheme for frequency-dependent crosstalk of adjacent channels in high-baud-rate coherent optical transceivers. Through an accurate estimate of the crosstalk curve, the BER of a 64 GBaud PDM-16QAM experiment is improved from 4.09e-3 to 7.70e-4 by...

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Published in2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM) pp. 1 - 4
Main Authors Zhang, Ziheng, Dai, Longquan, Cao, Zicai, Cheng, Mengfan, Yang, Qi, Liu, Deming, Deng, Lei
Format Conference Proceeding
LanguageEnglish
Published IEEE 04.11.2023
Subjects
Asia
coherent optical communication
Crosstalk
Estimation
Frequency estimation
frequency-dependent IQ Crosstalk compensation
low-complexity
Optical crosstalk
Optical fiber communication
transceiver
Transceivers
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DOI10.1109/ACP/POEM59049.2023.10368980

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Summary:We propose a complete and low-complexity compensation scheme for frequency-dependent crosstalk of adjacent channels in high-baud-rate coherent optical transceivers. Through an accurate estimate of the crosstalk curve, the BER of a 64 GBaud PDM-16QAM experiment is improved from 4.09e-3 to 7.70e-4 by only a low-complexity 2\times 2 algorithm.
DOI:10.1109/ACP/POEM59049.2023.10368980