OSA's Digital Library

Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 23, Iss. 12 — Dec. 1, 2006
  • pp: 3114–3122

Scintillation index for two Gaussian laser beams with different wavelengths in weak atmospheric turbulence

Avner Peleg and Jerome V. Moloney  »View Author Affiliations


JOSA A, Vol. 23, Issue 12, pp. 3114-3122 (2006)
http://dx.doi.org/10.1364/JOSAA.23.003114


View Full Text Article

Enhanced HTML    Acrobat PDF (231 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We study the propagation of the two lowest-order Gaussian laser beams with different wavelengths in weak atmospheric turbulence. Using the Rytov approximation and assuming a slow detector, we calculate the longitudinal and radial components of the scintillation index for a typical free-space laser communication setup. We find the optimal configuration of the two laser beams with respect to the longitudinal scintillation index. We show that the value of the longitudinal scintillation for the optimal two-beam configuration is smaller by more than 50% compared with the value for a single lowest-order Gaussian beam with the same total power. Furthermore, the radial scintillation for the optimal two-beam system is smaller by 35%–40% compared with the radial scintillation in the single-beam case. Further insight into the reduction of intensity fluctuations is gained by analyzing the self- and cross-intensity contributions to the scintillation index.

© 2006 Optical Society of America

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(030.7060) Coherence and statistical optics : Turbulence
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: March 14, 2006
Manuscript Accepted: June 23, 2006

Citation
Avner Peleg and Jerome V. Moloney, "Scintillation index for two Gaussian laser beams with different wavelengths in weak atmospheric turbulence," J. Opt. Soc. Am. A 23, 3114-3122 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-12-3114


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. A. Ishimaru, Laser Wave Propagation and Scattering in Random Media (Academic, 1978), Vol. 2.
  2. R. L. Fante, "Wave propagation in random media: a systems approach," in Progress in Optics, Vol. XXII, E.Wolf, ed. (Elsevier, 1985).
  3. L. C. Andrews and R. L. Phillips, Laser Beam Propagation through Random Media (SPIE, 1998).
  4. M. S. Belenkii, A. I. Kon, and V. L. Mironov, "Turbulence distortions of the spatial coherence of a laser beam," Sov. J. Quantum Electron. 7, 287-290 (1977). [CrossRef]
  5. S. C. H. Wang and M. A. Plonus, "Optical beam propagation for a partially coherent source in the turbulent atmosphere," J. Opt. Soc. Am. 69, 1297-1304 (1979).
  6. M. S. Belenkii and V. L. Mironov, "Coherence of the field of a laser beam in a turbulent atmosphere," Sov. J. Quantum Electron. 10, 595-597 (1980). [CrossRef]
  7. V. A. Banakh, V. M. Buldakov, and V. L. Mironov, "Intensity fluctuations of a partially coherent light beam in a turbulent atmosphere," Opt. Spektrosk. 54, 1054-1059 (1983).
  8. V. A. Banakh and V. M. Buldakov, "Effect of the initial degree of spatial coherence of a light beam on intensity fluctuations in a turbulent atmosphere," Opt. Spektrosk. 55, 757-762 (1983).
  9. J. Wu, "Propagation of a Gaussian-Schell beam through turbulent media," J. Mod. Opt. 37, 671-684 (1990).
  10. J. Wu and A. D. Boardman, "Coherence length of a Gaussian-Schell beam and atmospheric turbulence," J. Mod. Opt. 38, 1355-1363 (1991).
  11. G. Gbur and E. Wolf, "Spreading of partially coherent beams in random media," J. Opt. Soc. Am. A 19, 1592-1598 (2002).
  12. A. Dogariu and S. Amarande, "Propagation of partially coherent beams: turbulence-induced degradation," Opt. Lett. 28, 10-12 (2003).
  13. T. Shirai, A. Dogariu, and E. Wolf, "Mode analysis of spreading of partially coherent beams propagating through atmospheric turbulence," J. Opt. Soc. Am. A 20, 1094-1102 (2003).
  14. M. Salem, T. Shirai, A. Dogariu, and E. Wolf, "Long-distance propagation of partially coherent beams through atmospheric turbulence," Opt. Commun. 216, 261-265 (2003). [CrossRef]
  15. X. Ji and B. Lü, "Turbulence-induced quality degradation of partially coherent beams," Opt. Commun. 251, 231-236 (2005).
  16. O. Korotkova, L. C. Andrews, and R. L. Phillips, "Model for a partially coherent Gaussian beam in atmospheric turbulence with application in lasercom," Opt. Eng. 43, 330-341 (2004). [CrossRef]
  17. J. C. Ricklin and F. M. Davidson, "Atmospheric turbulence effects on a partially coherent Gaussian beam: implications for free-space laser communication," J. Opt. Soc. Am. A 19, 1794-1802 (2002).
  18. J. C. Ricklin and F. M. Davidson, "Atmospheric optical communication with a Gaussian Schell beam," J. Opt. Soc. Am. A 20, 856-866 (2003).
  19. T. J. Schulz, "Optimal beams for propagation through random media," Opt. Lett. 30, 1093-1095 (2005).
  20. L. Fan, M. Fallahi, J. T. Murray, R. Bedford, Y. Kaneda, A. R. Zakharian, J. Hader, J. V. Moloney, W. Stolz, and S. W. Koch, "Tunable high-power high-brightness linearly polarized vertical-external-cavity surface emitting lasers," Appl. Phys. Lett. 88, 021105 (2006). [CrossRef]
  21. Coherent Incorporated, Santa Clara, California (personal communication, 2005).
  22. J. L. A. Chilla, S. D. Butterworth, A. Zeitschel, J. P. Charles, A. L. Caprara, M. K. Reed, and L. Spinelli, "High-power optically pumped semiconductor lasers," in Nanobiophotonics and Biomedical Applications, A. N. Cartwright, ed., Proc. SPIE 5332, 143-150 (2004).
  23. R. L. Fante, "Effect of source bandwidth and receiver response time on the scintillation index in random media," Radio Sci. 12, 223-229 (1977).
  24. R. L. Fante, "The effect of source temporal coherence on light scintillation in weak turbulence," J. Opt. Soc. Am. 69, 71-73 (1979).
  25. R. L. Fante, "Intensity fluctuations of an optical wave in a turbulent medium, effect of source coherence," Opt. Acta 28, 1203-1207 (1981).
  26. Y. Baykal, M. A. Plonus, and S. J. Wang, "The scintillations for weak atmospheric turbulence using a partially coherent source," Radio Sci. 18, 551-556 (1983).
  27. K. Kiasaleh, "Scintillation index of a multiwavelength beam in turbulent atmosphere," J. Opt. Soc. Am. A 21, 1452-1454 (2004). [CrossRef]
  28. K. Kiasaleh, "Impact of turbulence on multi-wavelength coherent optical communications," in Free-Space Laser Communications V, D. G. Voelz and J. C. Ricklin, eds., Proc. SPIE 5892, 58920R1-58920R11 (2005).
  29. L. C. Andrews, R. L. Phillips, and C. Y. Hopen, Laser Beam Scintillation with Applications (SPIE, 2001).
  30. M. Abramowitz and I. A. Stegun, Handbook of Mathematical Functions (National Bureau of Standards, 1968).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited