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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 12 — Jun. 15, 2008
  • pp: 1294–1296

Generation of pure electrical quadrature amplitude modulation with photonic vector modulator

Juan L. Corral, Rakesh Sambaraju, Miguel A. Piqueras, and Valentín Polo  »View Author Affiliations


Optics Letters, Vol. 33, Issue 12, pp. 1294-1296 (2008)
http://dx.doi.org/10.1364/OL.33.001294


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Abstract

A photonic vector modulator architecture for generating pure quadrature amplitude modulation (QAM) signals is presented. An electrical quadrature-modulated signal at microwave-millimeter-wave frequencies is generated from its corresponding baseband in-phase ( I ) and quadrature ( Q ) components. In the proposed scheme, no electrical devices apart from the electrical tone oscillator are needed in the generation process. In addition, the purity of the generated signal is increased, and the hardware requirements are reduced when compared with previously proposed architectures so a highly compact low-cost architecture can be implemented. A pure 1.25 Gbit s 4-QAM signal has been experimentally generated at a 42 GHz carrier frequency.

© 2008 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 12, 2008
Manuscript Accepted: April 23, 2008
Published: June 5, 2008

Citation
Juan L. Corral, Rakesh Sambaraju, Miguel A. Piqueras, and Valentín Polo, "Generation of pure electrical quadrature amplitude modulation with photonic vector modulator," Opt. Lett. 33, 1294-1296 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-12-1294


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References

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  7. R. Sambaraju, M. A. Piqueras, V. Polo, J. L. Corral, and J. Marti, in Proceedings of European Conference on Optical Communications 2007 (VDE Verlag, 2007), paper Tu5.4.7.

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