Linewidth-Tolerant and Low-Complexity Two-Stage Carrier Phase Estimation Using QPSK Constellation Transformation for 112 Gb/s PM 16-QAM Systems

Jian Hong Ke; Kang Ping Zhong; Kang Ping Zhong; John C. Cartledge

doi:10.1364/ECEOC.2012.Mo.1.A.3

European Conference and Exhibition on Optical Communication
OSA Technical Digest (online) (Optica Publishing Group, 2012),
paper Mo.1.A.3
•https://doi.org/10.1364/ECEOC.2012.Mo.1.A.3

Linewidth-Tolerant and Low-Complexity Two-Stage Carrier Phase Estimation Using QPSK Constellation Transformation for 112 Gb/s PM 16-QAM Systems

Jian Hong Ke, Kang Ping Zhong, and John C. Cartledge

European Conference and Exhibition on Optical Communication 2012

Amsterdam Netherlands
16–20 September 2012
ISBN: 978-1-55752-950-3

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Carrier & Timing Recovery (Mo.1.A)

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J. H. Ke, K. P. Zhong, and J. C. Cartledge, "Linewidth-Tolerant and Low-Complexity Two-Stage Carrier Phase Estimation Using QPSK Constellation Transformation for 112 Gb/s PM 16-QAM Systems," in European Conference and Exhibition on Optical Communication, OSA Technical Digest (online) (Optica Publishing Group, 2012), paper Mo.1.A.3.

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Abstract

The performance of QPSK constellation transformation based two-stage carrier phase estimation algorithms is assessed for 16-ary quadrature-amplitude-modulation. Experimentally the linewidth tolerance of the algorithms is shown to be comparable to the blind phase search algorithm, but with a reduction in the hardware complexity by factors of about 3-8.

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