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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 20 — Oct. 15, 2013
  • pp: 4256–4259

Photonic generation of pulsed microwave signals with tunable frequency and phase based on spectral-shaping and frequency-to-time mapping

Fangzheng Zhang, Xiaozhong Ge, Shilong Pan, and Jianping Yao  »View Author Affiliations


Optics Letters, Vol. 38, Issue 20, pp. 4256-4259 (2013)
http://dx.doi.org/10.1364/OL.38.004256


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Abstract

A scheme for photonic generation of pulsed microwave signals with tunable frequency and phase based on optical spectral-shaping and frequency-to-time mapping is proposed and experimentally demonstrated. The spectral shaping is realized by a tunable optical comb filter consisting of a differential group delay (DGD) element, a polarization modulator (PolM), and a polarizer. By passing a short optical pulse through the tunable comb filter and a dispersive element (DE), a pulsed microwave signal is generated after optical-to-electrical conversion. The phase of the generated microwave signal can be continuously tuned by tuning the voltage applied to the PolM. The frequency of the microwave signal can be tuned by changing the DGD and/or the dispersion of the DE. An experiment is performed. The generation of a pulsed microwave signal with tunable frequency and phase is demonstrated.

© 2013 Optical Society of America

OCIS Codes
(060.7140) Fiber optics and optical communications : Ultrafast processes in fibers
(320.5540) Ultrafast optics : Pulse shaping
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 21, 2013
Revised Manuscript: September 16, 2013
Manuscript Accepted: September 17, 2013
Published: October 15, 2013

Citation
Fangzheng Zhang, Xiaozhong Ge, Shilong Pan, and Jianping Yao, "Photonic generation of pulsed microwave signals with tunable frequency and phase based on spectral-shaping and frequency-to-time mapping," Opt. Lett. 38, 4256-4259 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-20-4256

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