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Pilot-aided blind phase search for coherent optical orthogonal frequency-division multiplexing systems
Author(s): Mingzhi Mao; Rongrong Chen; Qianwu Zhang; Min Wang
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Paper Abstract

A downconversion scheme using a pilot-aided blind phase search (PA-BPS) algorithm for phase noise compensation is proposed and experimentally evaluated in coherent optical orthogonal frequency-division multiplexing systems based on optical comb and heterodyne detection. The proposed method can increase the systems bandwidth utilization efficiency and reduce the receiver complexity. Experimental results show that, based on the method, a receiver sensitivity as low as 27    dBm can be achieved in the transmission systems considered. Meanwhile, in each PA-BPS calculation, the method only requires 2 pilots and 10 testing phases.

Paper Details

Date Published: 31 October 2017
PDF: 6 pages
Opt. Eng. 56(10) 106117 doi: 10.1117/1.OE.56.10.106117
Published in: Optical Engineering Volume 56, Issue 10
Show Author Affiliations
Mingzhi Mao, Shanghai Univ. (China)
Rongrong Chen, Shanghai Univ. (China)
Qianwu Zhang, Shanghai Univ. (China)
Min Wang, Shanghai Univ. (China)

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