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Orthogonal Basis Expansion-Based Phase Noise Estimation and Suppression for CO-OFDM Systems

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3 Author(s)
Chuanchuan Yang ; State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Peking Univ., Beijing, China ; Feng Yang ; Ziyu Wang

In coherent optical orthogonal frequency-division-multiplexing systems, the laser phase noise which induces common phase error (CPE) and intercarrier interference (ICI) is a major impairment to the system's performance. In this letter, we propose an orthogonal basis expansion-based phase noise suppression algorithm which can mitigate CPE as well as ICI effectively. The proposal can significantly reduce the bit-error-rate floor caused by ICI.

Published in:

IEEE Photonics Technology Letters  (Volume:22 ,  Issue: 1 )