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Simultaneous Monitoring of Frequency-dependent IQ Imbalances in a Dual-polarization IQ Modulator by using a Single Photodetector: A Phase Retrieval Approach

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Abstract

A low-complexity frequency-dependent IQ imbalance monitoring technique for a dual-polarization (DP) IQ modulator by using a single photodetector is proposed based on phase retrieval and demonstrated experimentally with a 63.25-Gbaud DP-16QAM signal.

© 2021 The Author(s)

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