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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 27 — Dec. 17, 2012
  • pp: 29023–29034

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, Alan Pak Tao Lau, Yu Ji, Lei Liu, and Xiaogeng Xu  »View Author Affiliations


Optics Express, Vol. 20, Issue 27, pp. 29023-29034 (2012)
http://dx.doi.org/10.1364/OE.20.029023


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Abstract

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.

© 2012 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4080) Fiber optics and optical communications : Modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 17, 2012
Revised Manuscript: November 28, 2012
Manuscript Accepted: December 3, 2012
Published: December 14, 2012

Citation
Shuangyi Yan, Xuan Weng, Yuliang Gao, Chao Lu, Alan Pak Tao Lau, Yu Ji, Lei Liu, and Xiaogeng Xu, "Generation of square or hexagonal 16-QAM signals using a dual-drive IQ modulator driven by binary signals," Opt. Express 20, 29023-29034 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-27-29023


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