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Low Complexity Blind Level Discrimination Carrier Phase Recovery Algorithm in Optical Coherent Receiver

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We propose and demonstrate a low complexity blind Level Discrimination Carrier Recovery Algorithm (LD-CRA) for optical coherent receivers. Through optimization of step size parameter we found that LD-CRA has below 2 dB OSNR penalty for 14Gbaud 16-QAM signal for 600 kHz line width laser.

© 2012 Optical Society of America

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