OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 21 — Jul. 20, 1998
  • pp: 4782–4788

Experimental verification and theory for an eight-element multiple-aperture equal-gain coherent laser receiver for laser communications

Arthur R. Weeks, Jing Xu, Ronald R. Phillips, Larry C. Andrews, C. Martin Stickley, Glenn Sellar, John S. Stryjewski, and James E. Harvey  »View Author Affiliations


Applied Optics, Vol. 37, Issue 21, pp. 4782-4788 (1998)
http://dx.doi.org/10.1364/AO.37.004782


View Full Text Article

Enhanced HTML    Acrobat PDF (166 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The detection and processing of laser communication signals are affected by the fading induced onto these signals by atmospheric turbulence. One method of reducing this fading is to use an array of detectors in which each of the detector outputs are added together coherently. We present experimental verification and theory of a 1.06 μm eight-element coherent receiver used to mitigate the effects of fading over a 1-km outdoor range. The carrier-to-noise ratio (CNR) was measured on a single channel and was then compared with the CNR obtained from the coherent sum of the eight channels. The increase of the mean CNR for the coherent sum as compared with a single aperture was observed proportional to the number of the apertures under different conditions of atmospheric turbulence. The measured mean CNR gain fitted the theoretical prediction well when the laser intensity fluctuations followed the gamma distribution.

© 1998 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(280.1310) Remote sensing and sensors : Atmospheric scattering
(280.3640) Remote sensing and sensors : Lidar
(280.5600) Remote sensing and sensors : Radar

History
Original Manuscript: September 10, 1997
Revised Manuscript: April 10, 1998
Published: July 20, 1998

Citation
Arthur R. Weeks, Jing Xu, Ronald R. Phillips, Larry C. Andrews, C. Martin Stickley, Glenn Sellar, John S. Stryjewski, and James E. Harvey, "Experimental verification and theory for an eight-element multiple-aperture equal-gain coherent laser receiver for laser communications," Appl. Opt. 37, 4782-4788 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-21-4782


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. L. C. Andrews, R. L. Phillips, P. T. Yu, “Optical scintillations and fade statistics for a satellite-communication system,” Appl. Opt. 34, 7742–7751 (1995). [CrossRef] [PubMed]
  2. J. M. Jutila, “Wireless laser networking,”IEEE Telecommun.37–40 (1996).
  3. D. L. Fried, “Optical heterodyne detection of an atmospherically distorted signal wave front,” Proc. IEEE 55, 57–67 (1967). [CrossRef]
  4. D. Fink, S. N. Vodopia, “Coherent detection SNR of an array of detectors,” Appl. Opt. 15, 453–454 (1976). [CrossRef] [PubMed]
  5. W. C. Jakes, Microwave Mobile Communications (IEEE, New York, 1974).
  6. J. D. Parson, “Diversity techniques in communications receivers,” in Advanced Signal Processing, D. A. Creasey, ed. (Peregrinus, London, 1985). [CrossRef]
  7. P. Gatt, T. P. Costello, D. A. Heimmermann, D. C. Castellanos, A. R. Weeks, C. M. Stickley, “Coherent optical array receivers for the mitigation of atmospheric turbulence and speckle effects,” Appl. Opt. 35, 5999–6009 (1996). [CrossRef] [PubMed]
  8. L. C. Andrews, D. E. Kelly, R. L. Phillips, A. R. Weeks, J. Harvey, J. Xu, C. Gagge, A. Notash, G. Luvera, G. Sellar, “Carrier-to-noise ratio for an equal-gain coherent laser radar receiver array system: theory and experiment.” in Optics in Atmospheric Propagation and Adaptive Systems II, A. Kohnle, A. D. Devir, eds., Proc. SPIE3219, 84–92 (1997). [CrossRef]
  9. L. H. Enloe, J. L. Rodda, “Laser phase-locked loop,” Proc. IEEE 53, 165–166 (1965). [CrossRef]
  10. J. T. Kane, A. P. Cheng, “Fast frequency tuning and phase locking of diode-pumped Nd:YAG ring lasers,” Opt. Lett. 13, 970–972 (1988). [CrossRef] [PubMed]
  11. T. Day, A. D. Farinas, R. L. Byer, “Demonstration of a low bandwidth 1.06 mm optical phase-locked loop for coherent homodyne communication,” IEEE Photon. Technol. Lett. 2, 294–296 (1990). [CrossRef]
  12. W. M. Neubert, K. H. Kudielka, W. R. Leeb, A. L. Scholtz, “Experimental demonstration of an optical phased array antenna for laser space communications,” Appl. Opt. 33, 3820–3830 (1994). [CrossRef] [PubMed]
  13. D. A. Jackson, R. Priest, A. Dandridge, A. B. Tveten, “Elimination of drift in a single-mode optical fiber interferometer using a piezoelectrically stretched coiled fiber,” Appl. Opt. 19, 970–972 (1980). [CrossRef]

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.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4 Fig. 5
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited