Abstract

Scintillation measurements are described for a very-large integrated-path turbulence. Measurements were made with simultaneous, coincident beams at 10.6 µm and 4880 Å over a 6-km uniform path. The experimental results include (i) the (log amplitude) variance at 10.6 µm showed saturation at a level comparable to that for shorter wavelengths; (ii) the variance beyond saturation at 4880 Å decreased for increasing turbulence (<i>C</i><sub><i>n</i></sub><sub>2</sub>), with an exponent of (-0.48) and no apparent asymptote; (iii) the covariance functions, <i>C</i><sub><i>l</i></sub>(<i>r</i>), exhibited the emergence of two scale sizes, as manifested by a rapid initial drop vs (<i>r</i>), and a residual correlation out to large separations; (iv) a corresponding effect was revealed by the spectra of scintillations; (v) receiver-aperture smoothing at 4880 Å was very poor, owing to the large residual correlation sizes; and (vi) the amplitude statistics at both wavelengths approximated log-normal distributions.

PDF Article

References

  • View by:
  • |
  • |

  1. R. S. Lawrence and J. W. Strohbehn, Proc. IEEE 58, 1523 (1970).
  2. J. Richard Kerr, J. Opt. Soc. Am. 62, 1040 (1972).
  3. W. P. Brown, Jr., J. Opt. Soc. Am. 62, 966 (1972).
  4. D. A. de Wolf, J. Opt. Soc. Am. 63, 171 (1973).
  5. Note that Eq. (T13) of Ref. 1 has an incorrect coefficient. The correct value is 2.24.
  6. J. C. Wyngaard, Y. Izumi, and S. A. Collins, Jr., J. Opt. Soc. Am. 61, 1646 (1971).
  7. R. H. Kleen and G. R. Ochs, J. Opt. Soc. Am. 60, 1695 (1970).
  8. H. T. Yura, Aerospace Corp., Los Angeles, Calif. (private communication).
  9. H. R. Carlon, Appl. Opt. 4, 1089 (1965).
  10. D. A. de Wolf, J. Opt. Soc. Am. 59, 1455 (1969).

Brown, Jr., W. P.

W. P. Brown, Jr., J. Opt. Soc. Am. 62, 966 (1972).

Carlon, H. R.

H. R. Carlon, Appl. Opt. 4, 1089 (1965).

Collins, Jr., S. A.

J. C. Wyngaard, Y. Izumi, and S. A. Collins, Jr., J. Opt. Soc. Am. 61, 1646 (1971).

de Wolf, D. A.

D. A. de Wolf, J. Opt. Soc. Am. 63, 171 (1973).

D. A. de Wolf, J. Opt. Soc. Am. 59, 1455 (1969).

Izumi, Y.

J. C. Wyngaard, Y. Izumi, and S. A. Collins, Jr., J. Opt. Soc. Am. 61, 1646 (1971).

Kerr, J. Richard

J. Richard Kerr, J. Opt. Soc. Am. 62, 1040 (1972).

Kleen, R. H.

R. H. Kleen and G. R. Ochs, J. Opt. Soc. Am. 60, 1695 (1970).

Lawrence, R. S.

R. S. Lawrence and J. W. Strohbehn, Proc. IEEE 58, 1523 (1970).

Ochs, G. R.

R. H. Kleen and G. R. Ochs, J. Opt. Soc. Am. 60, 1695 (1970).

Strohbehn, J. W.

R. S. Lawrence and J. W. Strohbehn, Proc. IEEE 58, 1523 (1970).

Wyngaard, J. C.

J. C. Wyngaard, Y. Izumi, and S. A. Collins, Jr., J. Opt. Soc. Am. 61, 1646 (1971).

Yura, H. T.

H. T. Yura, Aerospace Corp., Los Angeles, Calif. (private communication).

Other

R. S. Lawrence and J. W. Strohbehn, Proc. IEEE 58, 1523 (1970).

J. Richard Kerr, J. Opt. Soc. Am. 62, 1040 (1972).

W. P. Brown, Jr., J. Opt. Soc. Am. 62, 966 (1972).

D. A. de Wolf, J. Opt. Soc. Am. 63, 171 (1973).

Note that Eq. (T13) of Ref. 1 has an incorrect coefficient. The correct value is 2.24.

J. C. Wyngaard, Y. Izumi, and S. A. Collins, Jr., J. Opt. Soc. Am. 61, 1646 (1971).

R. H. Kleen and G. R. Ochs, J. Opt. Soc. Am. 60, 1695 (1970).

H. T. Yura, Aerospace Corp., Los Angeles, Calif. (private communication).

H. R. Carlon, Appl. Opt. 4, 1089 (1965).

D. A. de Wolf, J. Opt. Soc. Am. 59, 1455 (1969).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.