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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 36 — Dec. 20, 2002
  • pp: 7592–7602

Minimization of acquisition time in short-range free-space optical communication

Jin Wang, Joseph M. Kahn, and Kam Y. Lau  »View Author Affiliations


Applied Optics, Vol. 41, Issue 36, pp. 7592-7602 (2002)
http://dx.doi.org/10.1364/AO.41.007592


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Abstract

We consider short-range (1–3-km) free-space optical communication between moving parties when covertness is the overriding system performance requirement. To maximize covertness, it is critical to minimize the time required for the acquisition phase, during which the party initiating contact must conduct a broad-field scan and so risks revealing his position. Assuming an elliptical Gaussian beam profile, we show how to optimize the beam divergence angles, scan speed, and design of the raster scan pattern so as to minimize acquisition time. In this optimization, several constraints are considered, including: signal-to-noise ratio, required for accurate bearing detection and reliable decoding; limited receiver bandwidth; limited scanner speed; and beam divergence as limited by the scanner mirror dimensions. The effects of atmospheric turbulence are also discussed.

© 2002 Optical Society of America

OCIS Codes
(040.1240) Detectors : Arrays
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4510) Fiber optics and optical communications : Optical communications
(120.5800) Instrumentation, measurement, and metrology : Scanners
(140.3300) Lasers and laser optics : Laser beam shaping

History
Original Manuscript: March 12, 2002
Revised Manuscript: August 20, 2002
Published: December 20, 2002

Citation
Jin Wang, Joseph M. Kahn, and Kam Y. Lau, "Minimization of acquisition time in short-range free-space optical communication," Appl. Opt. 41, 7592-7602 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-36-7592


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References

  1. I. M. Teplyakov, “Acquisition and tracking of laser beams in space communications,” Acta Astron. 7, 341–355 (1980). [CrossRef]
  2. R. M. Gagliardi, S. Karp, Optical Communications (Wiley, New York, 1976).
  3. J. M. Lopez, K. Yong, “Acquisition, tracking, and fine pointing control of space-based laser communication system,” in Control and Communication Technology in Laser Systems, K. Yong, ed., Proc. SPIE295, 100–114 (1981).
  4. S. G. Lambert, W. L. Casey, Laser Communications in Space (Artech House, Boston, Mass., 1995).
  5. E. S. Clarke, H. D. Brixey, “Acquisition and tracking system for a ground-based laser communication receiver terminal,” in Control and Communication Technology in Laser Systems, K. Yong, ed., Proc. SPIE295, 162–169 (1981).
  6. R. B. Deadrick, “Design and performance of a satellite laser communications pointing system,” Adv. Astronaut. Sci. 57, 155–166 (1985).
  7. M. Scheinfeild, N. S. Kopeika, R. Melamed, “Acquisition system for microsatellites laser communication in space,” in Free-Space Laser Communication Technologies XII, G. S. Mecherle, ed., Proc. SPIE3932, 166–175 (2000).
  8. A. Yariv, Introduction to Optical Electronics, 2nd ed. (Holt, Rinehart and Winston, New York, 1976).
  9. J. D. Barry, G. S. Mecherle, “Beam pointing error as a significant design parameter for satellite-borne free-space optical communication systems,” Opt. Eng. 24, 1049–1054 (1985). [CrossRef]
  10. J. G. Proakis, Digital Communications, 3rd ed. (McGraw-Hill, New York, 1995).
  11. P. Djahani, J. M. Kahn, “Analysis of infrared wireless links employing multi-beam transmitters and imaging diversity receivers,” IEEE Trans. Commun. 48, 2077–2088 (2000). [CrossRef]
  12. A. L. Bloom, Gas Lasers (Wiley, New York, 1968).
  13. B. E. A. Saleh, M. C. Teich, Fundamentals of Photonics (Wiley, New York, 1991).
  14. L. C. Andrews, R. L. Phillips, Laser Beam Propagation through Random Media (SPIE Optical Engineering Press, Bellingham, Wash., 1998).
  15. C. C. Davis, I. I. Smolyaninov, “Effect of atmospheric turbulence on bit-error rate in an on-off-keyed optical wireless system,” in Free-Space Laser Communication and Laser Imaging, D. G. Voelz, J. C. Ricklin, eds., Proc. SPIE4489, 126–137 (2002).
  16. X. Zhu, J. M. Kahn, “Free-space optical communication through atmospheric turbulence channels,” IEEE Trans. Commun. 50, 1293–1300 (2002). [CrossRef]
  17. L. C. Andrews, R. L. Phillips, “Impact of scintillation on laser communication systems: recent advances in modeling,” in Free-Space Laser Communication and Laser Imaging, D. G. Voelz, J. C. Ricklin, eds., Proc. SPIE4489, 23–34 (2002).

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