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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 12 — Jun. 15, 2014
  • pp: 3402–3405

Cyclic additional optical true time delay for microwave beam steering with spectral filtering

Z. Cao, R. Lu, Q. Wang, N. Tessema, Y. Jiao, H. P. A. van den Boom, E. Tangdiongga, and A. M. J. Koonen  »View Author Affiliations


Optics Letters, Vol. 39, Issue 12, pp. 3402-3405 (2014)
http://dx.doi.org/10.1364/OL.39.003402


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Abstract

Optical true time delay (OTTD) is an attractive way to realize microwave beam steering (MBS) due to its inherent features of broadband, low-loss, and compactness. In this Letter, we propose a novel OTTD approach named cyclic additional optical true time delay (CAO-TTD). It applies additional integer delays of the microwave carrier frequency to achieve spectral filtering but without disturbing the spatial filtering (beam steering). Based on such concept, a broadband MBS scheme for high-capacity wireless communication is proposed, which allows the tuning of both spectral filtering and spatial filtering. The experimental results match well with the theoretical analysis.

© 2014 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 5, 2014
Revised Manuscript: April 24, 2014
Manuscript Accepted: April 27, 2014
Published: June 4, 2014

Citation
Z. Cao, R. Lu, Q. Wang, N. Tessema, Y. Jiao, H. P. A. van den Boom, E. Tangdiongga, and A. M. J. Koonen, "Cyclic additional optical true time delay for microwave beam steering with spectral filtering," Opt. Lett. 39, 3402-3405 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-12-3402


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References

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