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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2222–2224

Compressive sensing in a photonic link with optical integration

Ying Chen, Xianbin Yu, Hao Chi, Xiaofeng Jin, Xianmin Zhang, Shilie Zheng, and Michael Galili  »View Author Affiliations

Optics Letters, Vol. 39, Issue 8, pp. 2222-2224 (2014)

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In this Letter, we present a novel structure to realize photonics-assisted compressive sensing (CS) with optical integration. In the system, a spectrally sparse signal modulates a multiwavelength continuous-wave light and then is mixed with a random sequence in optical domain. The optical signal passes through a length of dispersive fiber, the dispersion amount of which is set to ensure that the group delay between the adjacent wavelength channels is equal to the bit duration of the applied random sequence. As a result, the detected signal is a delay-and-sum version of the randomly mixed signal, which is equivalent to the function of integration required in CS. A proof-of-concept experiment with four wavelengths, corresponding to a compression factor of 4, is demonstrated. More simulation results are also given to show the potential of the technique.

© 2014 Optical Society of America

OCIS Codes
(250.4745) Optoelectronics : Optical processing devices
(320.7085) Ultrafast optics : Ultrafast information processing

ToC Category:
Ultrafast Optics

Original Manuscript: December 30, 2013
Revised Manuscript: February 28, 2014
Manuscript Accepted: March 8, 2014
Published: April 2, 2014

Ying Chen, Xianbin Yu, Hao Chi, Xiaofeng Jin, Xianmin Zhang, Shilie Zheng, and Michael Galili, "Compressive sensing in a photonic link with optical integration," Opt. Lett. 39, 2222-2224 (2014)

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