Title:
FREQUENCY DOMAIN OPTICAL CHANNEL ESTIMATION
Document Type and Number:
WIPO Patent Application WO/2017/092586
Kind Code:
A1
Abstract:
An optical transceiver in an optical communications network, comprising a receiver configured to receive an optical signal comprising an X-polarization component that comprises a first frame and a Y-polarization component that comprises a second frame. The optical transceiver also comprises a processor coupled to the receiver and configured to determine, in a time domain, a phase estimate according to the first frame and the second frame, determine, in a frequency domain, a channel estimate for the optical signal according to a relationship between the first frame, the second frame, and the phase estimate, and determine a compensated optical signal according to the channel estimate. The optical transceiver further comprises a transmitter coupled to the processor and configured to transmit the compensated optical signal to a downstream component in the optical communications network.
Inventors:
KRISHNAN MURALI (US)
GUO QING (US)
CHOWDHURY SAMINA (US)
ZHU FEI (US)
BAI YU SHENG (US)
GUO QING (US)
CHOWDHURY SAMINA (US)
ZHU FEI (US)
BAI YU SHENG (US)
Application Number:
PCT/CN2016/106813
Publication Date:
June 08, 2017
Filing Date:
November 22, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B10/61; H04B10/2513
Domestic Patent References:
| WO2014180495A1 | 2014-11-13 |
Foreign References:
| CN104904141A | 2015-09-09 | |||
| US20120114341A1 | 2012-05-10 | |||
| US20100142952A1 | 2010-06-10 |
Other References:
CHEN ZHU ET AL.: "Two-Stage Frequency Domain Blind Equalization for Coherent Pol-Mux 16-QAM System with CD Prediction and Dual-Mode Adaptive Algorithm", IEEE PHOTONICS CONFERENCE (IPC, 2012, XP032269154, ISSN: 1092-8081
CHEN ZHU ET AL.: "Frequency-Domain Blind Equalization for Long-Haul Coherent Pol-Mux 16-QAM System With CD Prediction and Dual-Mode Adaptive Algorithm", IEEE PHOTONICS JOURNAL, vol. 4, no. 5, 31 October 2012 (2012-10-31), XP011485372, ISSN: 1943-0655
CHEN ZHU ET AL.: "Frequency-Domain Blind Equalization for Long-Haul Coherent Pol-Mux 16-QAM System With CD Prediction and Dual-Mode Adaptive Algorithm", IEEE PHOTONICS JOURNAL, vol. 4, no. 5, 31 October 2012 (2012-10-31), XP011485372, ISSN: 1943-0655
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