Title :
Over 2000-km transmission of 60-Gbaud PDM-QPSK signal with heterodyne detection and SE of 4b/s/Hz
Author :
Xinying Li ; Junwen Zhang ; Fan Li ; Jiangnan Xiao
Author_Institution :
Fudan Univ., Shanghai, China
Abstract :
We experimentally demonstrate 8×240-Gb/s WDM-PDM-QPSK signal transmission on 50-GHz grid over 5×420-km SMF-28 with 4-b/s/Hz net SE adopting simplified heterodyne detection and 9QAM-like procession. 9QAM-like procession is more efficient than digital-post-filtering for this heterodyne system.
Keywords :
digital filters; heterodyne detection; light transmission; optical fibre polarisation; quadrature amplitude modulation; quadrature phase shift keying; wavelength division multiplexing; 60-Gbaud WDM-PDM-QPSK signal transmission; 9QAM-like procession; digital-post-filtering; frequency 50 GHz; heterodyne detection; Bit error rate; Filtering; Optical fibers; Optical noise; Optical polarization; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2014
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-5575-2994-7
DOI :
10.1364/OFC.2014.Th4F.4
