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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 14 — Jul. 5, 2010
  • pp: 14752–14761

Ultrahigh dispersion of broadband microwave signals by incoherent photonic processing

Yongwoo Park and José Azaña  »View Author Affiliations


Optics Express, Vol. 18, Issue 14, pp. 14752-14761 (2010)
http://dx.doi.org/10.1364/OE.18.014752


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Abstract

We propose and demonstrate a fiber-optic incoherent signal processing scheme to achieve extraordinary dispersion amounts on arbitrary microwave signals with bandwidths over tens of GHz. Using this new scheme, we experimentally achieve microwave dispersion values approaching 24 ns/GHz (equivalent to the dispersion induced by a section of standard single-mode fiber with a length of ~185,000 km). The scheme is used for real-time Fourier transformation (linear frequency-to-time mapping) of nanosecond-long microwave signals, including a square-like waveform, a sinusoidal pulse and a double pulse waveform, with bandwidths over 20 GHz.

© 2010 OSA

OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(200.4740) Optics in computing : Optical processing
(060.5625) Fiber optics and optical communications : Radio frequency photonics
(320.7085) Ultrafast optics : Ultrafast information processing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 17, 2010
Revised Manuscript: June 12, 2010
Manuscript Accepted: June 17, 2010
Published: June 25, 2010

Citation
Yongwoo Park and José Azaña, "Ultrahigh dispersion of broadband microwave signals by incoherent photonic processing," Opt. Express 18, 14752-14761 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-14-14752


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