Title :
4000km transmission of 50GHz spaced, 10×494.85-Gb/s hybrid 32–64QAM using cascaded equalization and training-assisted phase recovery
Author :
Zhou, X. ; Nelson, L.E. ; Isaac, R. ; Magill, P.D. ; Zhu, B. ; Peckham, D.W. ; Borel, P. ; Carlson, K.
Author_Institution :
AT&T Labs-Research, 200 Laurel Ave South, Middletown, NJ 07748, USA
Abstract :
Employing time-domain hybrid QAM, training-assisted phase recovery and cascaded equalization, we successfully transmitted ten 494.85Gbit/s PDM-32/64QAM DWDM signals at 8.25b/s/Hz net spectral efficiency (SE) over 40×100km, achieving a record terrestrial SE⋅distance product of 33,000-km b/s/Hz.
Keywords :
Equalizers; Optical noise; Quadrature amplitude modulation; Signal to noise ratio; Time division multiplexing; Time domain analysis; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2012 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4673-0262-3
