An Improved Feed-Forward Carrier Recovery Algorithm for Coherent Receivers With M -QAM Modulation Format

An improved feed-forward carrier phase recovery method is proposed for coherent receivers using M-ary quadrature amplitude modulation-based modulation formats. It is shown that by introducing multiple cascaded feed-forward carrier recovery stages, the required compute power can be significantly redu...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 22; no. 14; pp. 1051 - 1053
Main Author Zhou, Xiang
Format Journal Article
LanguageEnglish
Published IEEE 15.07.2010
Subjects
Carriers
Coherence
Coherent receiver
Conferences
feed-forward
Feedforward systems
Fiber optics
High speed optical techniques
Laser feedback
Laser noise
Maximum likelihood estimation
Modulation
modulation format
optical
Optical fibers
Optical receivers
Phase estimation
Phase modulation
phase recovery
Quadrature amplitude modulation
quadrature amplitude modulation (QAM)
Receivers
Recovery
Testing
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Summary:An improved feed-forward carrier phase recovery method is proposed for coherent receivers using M-ary quadrature amplitude modulation-based modulation formats. It is shown that by introducing multiple cascaded feed-forward carrier recovery stages, the required compute power can be significantly reduced compared to the prior art using the single-stage-based blind phase search method.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-2
ObjectType-Feature-1
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SourceType-Conference Papers & Proceedings-1
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ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2010.2049644