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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 10, Iss. 11 — Nov. 1, 1971
  • pp: 2476–2481

New Multichannel Optical Correlator

G. J. M. Aitken and L. Wang  »View Author Affiliations


Applied Optics, Vol. 10, Issue 11, pp. 2476-2481 (1971)
http://dx.doi.org/10.1364/AO.10.002476


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Abstract

This paper describes a multichannel optical correlator that uses two spatial dimensions to achieve multichannel capability and operates in real time. Given I signals, r i (t), and J signals, s j (t), it can produce the I × J cross products, r i (t)s j (t), averaged over some interval. Multiplication is based on the fact that the square of the sum of two signals contains their cross product. Light fields modulated by the signals are added and their sum squared by measuring its intensity. An experimental correlator and its performance are described along with applications.

© 1971 Optical Society of America

History
Original Manuscript: May 20, 1971
Published: November 1, 1971

Citation
G. J. M. Aitken and L. Wang, "New Multichannel Optical Correlator," Appl. Opt. 10, 2476-2481 (1971)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-10-11-2476

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