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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 17 — Sep. 1, 2013
  • pp: 3245–3248

True time-delay line with high resolution and wide range employing dispersion and optical spectrum processing

Yunlong Song, Shangyuan Li, Xiaoping Zheng, Hanyi Zhang, and Bingkun Zhou  »View Author Affiliations


Optics Letters, Vol. 38, Issue 17, pp. 3245-3248 (2013)
http://dx.doi.org/10.1364/OL.38.003245


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Abstract

True time-delay line with a high resolution and wide range is proposed and demonstrated. Tunable lasers and dispersion fibers are employed to control the time delay coarsely. An optical spectrum processor is utilized to realize high-resolution time-delay control by adding a quadratic optical phase shift, which compensates the group velocity dispersion of the fiber simultaneously. A coarse tuning range of 1717 ps is realized by changing the wavelength of the optical carrier, and a high resolution of 0.67 ps is achieved by translating the symmetry axis of the quadratic phase shift.

© 2013 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(260.2030) Physical optics : Dispersion
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Physical Optics

History
Original Manuscript: June 17, 2013
Revised Manuscript: July 25, 2013
Manuscript Accepted: July 29, 2013
Published: August 20, 2013

Citation
Yunlong Song, Shangyuan Li, Xiaoping Zheng, Hanyi Zhang, and Bingkun Zhou, "True time-delay line with high resolution and wide range employing dispersion and optical spectrum processing," Opt. Lett. 38, 3245-3248 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-17-3245

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