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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 13 — May. 1, 1997
  • pp: 2929–2935

Imaging detector of temporally coherent radiation

Duane A. Satorius and Timothy E. Dimmick  »View Author Affiliations


Applied Optics, Vol. 36, Issue 13, pp. 2929-2935 (1997)
http://dx.doi.org/10.1364/AO.36.002929


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Abstract

We present an optical architecture and image processor capable of detecting and locating temporally coherent radiation that may be dominated by incoherent background radiation. The optical architecture makes use of a coherent light modulator that modulates light of sufficient coherence length while it leaves light of short coherence length unmodulated. The design of the coherent light modulator offers a substantially wider field of view than did past designs, permitting its application within an imaging system. The image processor synchronously detects the modulation imposed on coherent light while it rejects incoherent light fluctuations. Results of a laboratory test are presented. The system tested in the laboratory had a 26° field of view and was able to detect and locate coherent radiation >30 dB below the background incoherent light level.

© 1997 Optical Society of America

History
Original Manuscript: July 11, 1996
Revised Manuscript: October 23, 1996
Published: May 1, 1997

Citation
Duane A. Satorius and Timothy E. Dimmick, "Imaging detector of temporally coherent radiation," Appl. Opt. 36, 2929-2935 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-13-2929


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References

  1. J. Jannson, T. Jannson, E. Wolf, “Spatial coherence discrimination in scattering,” Opt. Lett. 13, 1060–1062 (1988). [CrossRef] [PubMed]
  2. R. Crane, “Laser detection by coherence discrimination,” Opt. Eng. 18, 212–217 (1979). [CrossRef]
  3. C. J. Duffy, D. Hickman, “A temporal coherence-based optical sensor,” Sensors Actuators 18, 17–31 (1989). [CrossRef]
  4. J. Cohen, “Electrooptic detector of temporally coherent radiation,” Appl. Opt. 30, 874–883 (1991). [CrossRef] [PubMed]
  5. R. Crane, “Imaging coherent radiometer,” U.S. patent4,735,507 (5April1988).
  6. M. Born, E. Wolf, Principles of Optics, 2nd ed. (Macmillan, New York, 1964), Chap. 14.

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