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A PMD Monitoring Scheme for Direct-Detection Optical OFDM Systems Using Code-Assisted Optical Subcarriers

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Abstract

A PMD monitoring scheme is proposed for direct-detection optical OFDM systems by adding a pair of code-assisted optical subcarriers. Code correlation technique is used to retrieve DGD values over 0-25ps with <2-ps average monitoring error.

© 2014 Optical Society of America

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