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Nonlinear Impairment Compensation Using Expectation Maximization for PDM 16-QAM Systems

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Abstract

We show experimentally that by using non-linear signal processing based algorithm, expectation maximization, nonlinear system tolerance can be increased by 2 dB. Expectation maximization is also effective in combating I/Q modulator nonlinearities and laser linewidth.

© 2012 Optical Society of America

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