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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 6 — Mar. 16, 2009
  • pp: 4773–4781

Opto-VLSI-based photonic true-time delay architecture for broadband adaptive nulling in phased array antennas

Budi Juswardy, Feng Xiao, and Kamal Alameh  »View Author Affiliations

Optics Express, Vol. 17, Issue 6, pp. 4773-4781 (2009)

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This paper proposes a novel Opto-VLSI-based tunable true-time delay generation unit for adaptively steering the nulls of microwave phased array antennas. Arbitrary single or multiple true-time delays can simultaneously be synthesized for each antenna element by slicing an RF-modulated broadband optical source and routing specific sliced wavebands through an Opto-VLSI processor to a high-dispersion fiber. Experimental results are presented, which demonstrate the principle of the true-time delay unit through the generation of 5 arbitrary true-time delays of up to 2.5 ns each.

© 2009 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2340) Fiber optics and optical communications : Fiber optics components
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(350.4010) Other areas of optics : Microwaves

ToC Category:
Fiber Optics

Original Manuscript: October 31, 2008
Revised Manuscript: March 4, 2009
Manuscript Accepted: March 5, 2009
Published: March 11, 2009

Budi Juswardy, Feng Xiao, and Kamal Alameh, "Opto-VLSI-based photonic true-time delay architecture for broadband adaptive nulling in phased array antennas," Opt. Express 17, 4773-4781 (2009)

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