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Efficient FIR Filter Configuration to Joint IQ Imbalance and Carrier-Phase Recovery in 16-QAM Coherent Receivers

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We propose an efficient configuration of FIR-filter for joint quadrature-imbalance (IQ) compensation and carrier-phase-recovery 16-QAM optical coherent receivers. Through computer simulation we demonstrate proposed scheme can mitigate wide-range of phase-noise and IQ-mismatch of optical front-end.

© 2014 Optical Society of America

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