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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 21 — Oct. 11, 2010
  • pp: 22599–22613

Broadband true time delay for microwave signal processing, using slow light based on stimulated Brillouin scattering in optical fibers

Sanghoon Chin, Luc Thévenaz, Juan Sancho, Salvador Sales, José Capmany, Perrine Berger, Jérôme Bourderionnet, and Daniel Dolfi  »View Author Affiliations


Optics Express, Vol. 18, Issue 21, pp. 22599-22613 (2010)
http://dx.doi.org/10.1364/OE.18.022599


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Abstract

We experimentally demonstrate a novel technique to process broadband microwave signals, using all-optically tunable true time delay in optical fibers. The configuration to achieve true time delay basically consists of two main stages: photonic RF phase shifter and slow light, based on stimulated Brillouin scattering in fibers. Dispersion properties of fibers are controlled, separately at optical carrier frequency and in the vicinity of microwave signal bandwidth. This way time delay induced within the signal bandwidth can be manipulated to correctly act as true time delay with a proper phase compensation introduced to the optical carrier. We completely analyzed the generated true time delay as a promising solution to feed phased array antenna for radar systems and to develop dynamically reconfigurable microwave photonic filters.

© 2010 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 13, 2010
Revised Manuscript: September 27, 2010
Manuscript Accepted: September 28, 2010
Published: October 8, 2010

Citation
Sanghoon Chin, Luc Thévenaz, Juan Sancho, Salvador Sales, José Capmany, Perrine Berger, Jérôme Bourderionnet, and Daniel Dolfi, "Broadband true time delay for microwave signal processing, using slow light based on stimulated Brillouin scattering in optical fibers," Opt. Express 18, 22599-22613 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-21-22599


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References

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