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Multilevel Amplitude and Phase Regeneration in a Nonlinear Amplifying Loop Mirror with a Phase-Sensitive Amplifier

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A novel regenerator scheme for all-optical multilevel simultaneous amplitude and phase noise suppression is proposed. For a star-8QAM signal, consisting of two amplitude and four phase states, EVM reduction is 4 dB and 2.5 dB for the high- and low-power states, respectively. The limiting effects of the regenerator performance have been considered.

© 2012 Optical Society of America

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