Generation of square or hexagonal 16-QAM signals using a dual-drive IQ modulator driven by binary signals

Shuangyi Yan, Xuan Weng, Yuliang Gao, Chao Lu, Pak Tao Lau, Yu Ji, Lei Liu, Xiaogeng Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

9 Citations (Scopus)


We propose a simple square or hexagonal 16-QAM signal generation technique using a commercially available dual-drive IQ modulator driven by four binary electrical signals with properly designed amplitudes. We analytically derive the required driving signal amplitudes for square and hexagonal 16-QAM and characterize its implementation penalty. Polarization-multiplexed (PM)-16-QAM signals at 28 Gbuad are experimentally demonstrated and stable performance is achieved with simple bias control.
Original languageEnglish
Pages (from-to)29023-29034
Number of pages12
JournalOptics Express
Issue number27
Publication statusPublished - 17 Dec 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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