Dual-stage cascaded frequency offset estimation for digital coherent receivers

S. Zhang; L. Xu; J. Yu; M. F. Huang; P. Y. Kam; C. Yu; T. Wang

doi:10.1109/LPT.2010.2040171

Dual-stage cascaded frequency offset estimation for digital coherent receivers

S. Zhang, L. Xu, J. Yu, M. F. Huang, P. Y. Kam, C. Yu, T. Wang

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Frequency offset estimation is a key function in carrier phase recovery to enable digital coherent reception. We propose a novel, feed-forward, dual-stage frequency offset estimator, and demonstrate its performance through both simulation and experiment. Our simulation results show that the estimation range can be as large as ±9 GHz for a 10.7-GBaud polarization-multiplexed (PolMux) quadrature phase-shift keying (QPSK) system. In addition, the widest range of ±0.5 times the system symbol rate is achieved for the first time in an experimental 42.8-Gb/s coherent PolMux QPSK receiver.

Original language	English (US)
Article number	5401069
Pages (from-to)	401-403
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	22
Issue number	6
DOIs	https://doi.org/10.1109/LPT.2010.2040171
State	Published - Mar 15 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Keywords

Coherent optical communication
Frequency offset
Timing recovery

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10.1109/LPT.2010.2040171

Cite this

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title = "Dual-stage cascaded frequency offset estimation for digital coherent receivers",

abstract = "Frequency offset estimation is a key function in carrier phase recovery to enable digital coherent reception. We propose a novel, feed-forward, dual-stage frequency offset estimator, and demonstrate its performance through both simulation and experiment. Our simulation results show that the estimation range can be as large as ±9 GHz for a 10.7-GBaud polarization-multiplexed (PolMux) quadrature phase-shift keying (QPSK) system. In addition, the widest range of ±0.5 times the system symbol rate is achieved for the first time in an experimental 42.8-Gb/s coherent PolMux QPSK receiver.",

keywords = "Coherent optical communication, Frequency offset, Timing recovery",

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doi = "10.1109/LPT.2010.2040171",

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T1 - Dual-stage cascaded frequency offset estimation for digital coherent receivers

AU - Zhang, S.

AU - Xu, L.

AU - Yu, J.

AU - Huang, M. F.

AU - Kam, P. Y.

AU - Yu, C.

AU - Wang, T.

PY - 2010/3/15

Y1 - 2010/3/15

N2 - Frequency offset estimation is a key function in carrier phase recovery to enable digital coherent reception. We propose a novel, feed-forward, dual-stage frequency offset estimator, and demonstrate its performance through both simulation and experiment. Our simulation results show that the estimation range can be as large as ±9 GHz for a 10.7-GBaud polarization-multiplexed (PolMux) quadrature phase-shift keying (QPSK) system. In addition, the widest range of ±0.5 times the system symbol rate is achieved for the first time in an experimental 42.8-Gb/s coherent PolMux QPSK receiver.

AB - Frequency offset estimation is a key function in carrier phase recovery to enable digital coherent reception. We propose a novel, feed-forward, dual-stage frequency offset estimator, and demonstrate its performance through both simulation and experiment. Our simulation results show that the estimation range can be as large as ±9 GHz for a 10.7-GBaud polarization-multiplexed (PolMux) quadrature phase-shift keying (QPSK) system. In addition, the widest range of ±0.5 times the system symbol rate is achieved for the first time in an experimental 42.8-Gb/s coherent PolMux QPSK receiver.

KW - Coherent optical communication

KW - Frequency offset

KW - Timing recovery

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Dual-stage cascaded frequency offset estimation for digital coherent receivers

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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