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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 22 — Nov. 15, 2012
  • pp: 4636–4638

Microwave spectral analysis based on photonic compressive sampling with random demodulation

Hao Chi, Yuan Mei, Ying Chen, Donghui Wang, Shilie Zheng, Xiaofeng Jin, and Xianmin Zhang  »View Author Affiliations


Optics Letters, Vol. 37, Issue 22, pp. 4636-4638 (2012)
http://dx.doi.org/10.1364/OL.37.004636


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Abstract

In this Letter, we present a photonic compressive sampling scheme based on optical sampling and random demodulation for microwave spectral analysis. A novel (to our knowledge) approach to realizing the multiplication of a pseudorandom binary sequence and the input microwave signal of interest in the optical domain is proposed, which largely simplifies the implementation of the compressive sampling. A spectrally sparse signal can be successfully captured by an electrical digitizer with a sampling rate much lower than the Nyquist rate with the help of random demodulation and the sparse reconstruction algorithm. Identification of the signals with multiple frequency components is successfully demonstrated.

© 2012 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(250.4745) Optoelectronics : Optical processing devices

ToC Category:
Optoelectronics

History
Original Manuscript: July 23, 2012
Revised Manuscript: September 18, 2012
Manuscript Accepted: September 19, 2012
Published: November 7, 2012

Citation
Hao Chi, Yuan Mei, Ying Chen, Donghui Wang, Shilie Zheng, Xiaofeng Jin, and Xianmin Zhang, "Microwave spectral analysis based on photonic compressive sampling with random demodulation," Opt. Lett. 37, 4636-4638 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-22-4636

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