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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 2 — Jan. 10, 2006
  • pp: 343–352

Multigigahertz range-Doppler correlative signal processing in optical memory crystals

Todd L. Harris, Kristian D. Merkel, R. Krishna Mohan, Tiejun Chang, Zachary Cole, Andy Olson, and Wm. Randall Babbitt  »View Author Affiliations


Applied Optics, Vol. 45, Issue 2, pp. 343-352 (2006)
http://dx.doi.org/10.1364/AO.45.000343


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Abstract

Analog optical signal processing of complex radio-frequency signals for range-Doppler radar information is theoretically described and experimentally demonstrated using crystalline optical memory materials and off-the-shelf photonic components. A model of the range-Doppler processing capability of the memory material for the case of single-target detection is presented. Radarlike signals were emulated and processed by the memory material; they consisted of broadband ( > 1 GHz ) , spread-spectrum, pseudorandom noise sequences of 512 bits in length, which were binary phase-shift keyed on a 1.9 GHz carrier and repeated at 100 kHz over 7.5 ms . Delay (range) resolution of 8 ns and Doppler resolution of 130 Hz over 100 kHz were demonstrated.

© 2006 Optical Society of America

OCIS Codes
(070.4550) Fourier optics and signal processing : Correlators
(090.7330) Holography : Volume gratings

ToC Category:
Fourier optics and signal processing

Citation
Todd L. Harris, Kristian D. Merkel, R. Krishna Mohan, Tiejun Chang, Zachary Cole, Andy Olson, and Wm. Randall Babbitt, "Multigigahertz range-Doppler correlative signal processing in optical memory crystals," Appl. Opt. 45, 343-352 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-2-343

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