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Investigation of I/Q Imbalance in Coherent Optical OFDM System

Authors: R. S. Fyath, Mustafa A. B. Al-Qadi


The inphase/quadrature (I/Q) amplitude and phase imbalance effects are studied in coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. An analytical model for the I/Q imbalance is developed and supported by simulation results. The results indicate that the I/Q imbalance degrades the BER performance considerably.

Keywords: Coherent detection, I/Q imbalance, OFDM, optical communications

Digital Object Identifier (DOI):

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