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Versatile offset-free 16-QAM single dual-drive IQ modulator driven by binary signals

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Abstract

A customized IQ modulator driven by equal-amplitude binary signals for generating offset-free 16-quadrature amplitude modulation (QAM) is proposed and validated through simulations. The incorporation of tunable splitters demonstrates the feasibility of the transmitter and enables more efficient constellations such as hexagonal 16-QAM.

© 2012 Optical Society of America

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