Please use this identifier to cite or link to this item: https://doi.org/10.1109/LPT.2010.2040171
Title: Dual-stage cascaded frequency offset estimation for digital coherent receivers
Authors: Zhang, S.
Xu, L.
Yu, J.
Huang, M.-F.
Kam, P.Y. 
Yu, C. 
Wang, T.
Keywords: Coherent optical communication
Frequency offset
Timing recovery
Issue Date: 15-Mar-2010
Source: Zhang, S., Xu, L., Yu, J., Huang, M.-F., Kam, P.Y., Yu, C., Wang, T. (2010-03-15). Dual-stage cascaded frequency offset estimation for digital coherent receivers. IEEE Photonics Technology Letters 22 (6) : 401-403. ScholarBank@NUS Repository. https://doi.org/10.1109/LPT.2010.2040171
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. © 2006 IEEE.
Source Title: IEEE Photonics Technology Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/55709
ISSN: 10411135
DOI: 10.1109/LPT.2010.2040171
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