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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 7 — Apr. 3, 2006
  • pp: 3073–3082

Coherent Fourier transform electrical pulse shaping

Shijun Xiao and Andrew M. Weiner  »View Author Affiliations


Optics Express, Vol. 14, Issue 7, pp. 3073-3082 (2006)
http://dx.doi.org/10.1364/OE.14.003073


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Abstract

Fourier synthesis pulse shaping methods allowing generation of programmable, user defined femtosecond optical waveforms have been widely applied in ultrafast optical science and technology. In the electrical domain, arbitrary waveform generation is well established at frequencies below approximately 1 GHz, but is difficult at higher frequencies due to limitations in digital-to-analog converter technology. In this paper we demonstrate a method for electrical waveform synthesis at substantially higher frequencies (approximately 20 GHz electrical bandwidth) by combining Fourier optical pulse shaping (extended to hyperfine frequency resolution) and heterodyne optical to electrical conversion. Our scheme relies on coherent manipulation of fields and phases at all stages, both for processing in the optical domain and for conversion from the optical to the electrical domain. We illustrate this technique through a number of examples, including programmable retardation or advancement of short electrical pulses in time over a range exceeding ten pulse durations. Such optically implemented, coherent Fourier transform electrical pulse shaping should open new prospects in ultrawideband electromagnetics.

© 2006 Optical Society of America

OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(320.5540) Ultrafast optics : Pulse shaping
(350.4010) Other areas of optics : Microwaves

ToC Category:
Ultrafast Optics

History
Original Manuscript: January 27, 2006
Revised Manuscript: March 20, 2006
Manuscript Accepted: March 23, 2006
Published: April 3, 2006

Citation
Shijun Xiao and Andrew M. Weiner, "Coherent Fourier transform electrical pulse shaping," Opt. Express 14, 3073-3082 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-7-3073


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