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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 20, Iss. 1 — Jan. 1, 1995
  • pp: 112–114

Low-cost high-speed multichannel fiber-optic correlator

Adrian Gh. Podoleanu, Ryan K. Harding, and David A. Jackson  »View Author Affiliations


Optics Letters, Vol. 20, Issue 1, pp. 112-114 (1995)
http://dx.doi.org/10.1364/OL.20.000112


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Abstract

It is shown that, for stationary signals, by use of a microwave switchable delay line the number of channels in a multichannel fiber-optic correlator may be simply expanded. By replacing one optical tree with an electrical tree and by performing the AND operation with double-gate metal-oxide semiconductor field-effect transistors, we demonstrate two methods of reducing the cost of a multichannel architecture without a reduction in speed. Using optical implementation for delays longer than 5 ns and microwave implementation for delays shorter than 5 ns, we obtain 20 points of the correlation function of a 500-MHz signal.

© 1995 Optical Society of America

History
Original Manuscript: August 17, 1994
Published: January 1, 1995

Citation
Adrian Gh. Podoleanu, Ryan K. Harding, and David A. Jackson, "Low-cost high-speed multichannel fiber-optic correlator," Opt. Lett. 20, 112-114 (1995)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-20-1-112


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References

  1. D. A. Jackson, J. D. C. Jones, Opt. Lett. 11, 824 (1986). [CrossRef] [PubMed]
  2. D. D. Sampson, D. A. Jackson, Opt. Lett. 16, 1899 (1991). [CrossRef] [PubMed]
  3. D. D. Sampson, W. T. Dove, D. A. Jackson, Appl. Opt. 32, 3905 (1993). [PubMed]
  4. D. D. Sampson, “High-bandwidth temporal correlation using optical fibre networks,” Ph.D. dissertation (University of Kent at Canterbury, Kent, UK, 1992).
  5. A. Gh. Podoleanu, R. K. Harding, D. A. Jackson, in Proceedings of the Sixth Joint European Physical Society-American Physical Society International Conference on Physics Computing, R. Gruber, M. Tomassini, eds. (European Physical Society, Geneva, 1994), p. 531.
  6. K. P. Jackson, S. A. Newton, B. Moslehi, M. C. C. Cutler, J. W. Goodman, H. J. Shaw, IEEE Trans. Microwave Theory Tech. MTT-33, 193 (1985). [CrossRef]

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