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Novel Method of Generating QAM-16 Signals at 21.3 Gbaud and Transmission Over 480 km

Makovejs, S; Millar, DS; Mikhailov, V; Gavioli, G; Killey, RI; Savory, SJ; Bayvel, P; (2010) Novel Method of Generating QAM-16 Signals at 21.3 Gbaud and Transmission Over 480 km. IEEE PHOTONIC TECH L , 22 (1) 36 - 38. 10.1109/LPT.2009.2035633.

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Abstract

In this letter, we report on a novel method of generating a square quadrature amplitude modulation (QAM-16) signal at 21.3 Gbaud and its subsequent transmission over 480 km. The proposed scheme generates a QAM-16 signal by optically processing a quadrature phase-shift-keying signal using a phase-stabilized fiber interferometer. We also discuss the inherent advantages and limitations of optical and electrical generation methods of QAM-16 signals, and digital signal processing algorithms used in the experiment.

Type:Article
Title:Novel Method of Generating QAM-16 Signals at 21.3 Gbaud and Transmission Over 480 km
DOI:10.1109/LPT.2009.2035633
Keywords:Advanced optical modulation formats, coherent detection, optical signal processing, quadrature amplitude modulation (QAM)
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering

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