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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 12 — Jun. 15, 2007
  • pp: 1704–1706

Multiple-element photonic microwave true-time-delay beamforming incorporating a tunable chirped fiber Bragg grating with symmetrical bending technique

Young-Geun Han and Ju Han Lee  »View Author Affiliations


Optics Letters, Vol. 32, Issue 12, pp. 1704-1706 (2007)
http://dx.doi.org/10.1364/OL.32.001704


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Abstract

We experimentally demonstrate a novel scheme for a multiple-element photonic microwave true-time-delay device with high tunability based on a tunable chirped fiber Bragg grating without center wavelength shift. We achieve the different true time delay by controlling the grating period of a chirped fiber Bragg grating based on the symmetrical bending technique as a multiwavelength signal source is applied to carry microwave signals. The proposed method does not require the complex structure of systems, wavelength tuning, and synchronization of optical devices such as tunable bandpass filters and optical input signals. We achieve the tunabilty of the time delay for a microwave signal carried over an optical signal in a range from 1 to 230 ps .

© 2007 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

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 5, 2007
Revised Manuscript: April 4, 2007
Manuscript Accepted: April 9, 2007
Published: June 6, 2007

Citation
Young-Geun Han and Ju Han Lee, "Multiple-element photonic microwave true-time-delay beamforming incorporating a tunable chirped fiber Bragg grating with symmetrical bending technique," Opt. Lett. 32, 1704-1706 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-12-1704


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