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|Title:||Dual-stage cascaded frequency offset estimation for digital coherent receivers|
|Keywords:||Coherent optical communication|
|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|
|Appears in Collections:||Staff Publications|
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