T. Huynh, W. Ng, A. Nguyen, L. Nguyen, L. Rusch, L. Barry
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Tracking excess noise from a monolithic tunable laser in coherent communication systems
We demonstrate the tracking of white-FM noise and 1/fα excess noise from a SGDBR laser in a coherent system. The performance of 2nd-order phase-locked loop was experimentally examined in 16-QAM system at 16 Gbaud.