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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 2 — Jan. 10, 1997
  • pp: 470–483

Implementation of a non-zero-order joint-transform correlator by use of phase-shifting techniques

Guowen Lu, Zheng Zhang, Shudon Wu, and F. T. S. Yu  »View Author Affiliations


Applied Optics, Vol. 36, Issue 2, pp. 470-483 (1997)
http://dx.doi.org/10.1364/AO.36.000470


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Abstract

The implementation of non-zero-order joint-transform correlators (JTC’) is presented. The zero-order spectra (i.e., the autocorrelation power spectra) are removed from the joint-transform power spectrum by use of phase-shifting techniques by which the output diffraction and input spatial domain can more efficiently be utilized. Applications of the phase-shifting techniques to both conventional JTC’ and phase-transformed input JTC’ (PJTC’) are discussed. Compared with the conventional JTC, the PJTC has the advantages of higher light efficiency, a better signal-to-clutter ratio, and the simplicity to realize phase shifting. We anticipate that the proposed non-zero-order JTC’ should have a significant impact on the future development of more efficient JTC’.

© 1997 Optical Society of America

History
Original Manuscript: February 29, 1996
Revised Manuscript: August 1, 1996
Published: January 10, 1997

Citation
Guowen Lu, Zheng Zhang, Shudon Wu, and F. T. S. Yu, "Implementation of a non-zero-order joint-transform correlator by use of phase-shifting techniques," Appl. Opt. 36, 470-483 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-2-470


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