Abstract
A method for real-time processing of phase fluctuations of a laser beam is described. A beat photocurrent whose phase undergoes random fluctuations is generated by two laser beams at different frequencies, propagating through a turbulent atmosphere. The phase fluctuation component of the beat can be recovered in real-time over a wide range of phase angle, not restricted within 2π, by a specially designed circuit. Probability density functions, autocorrelation functions, and variances of the phase fluctuations are displayed in real-time as most basic quantities of the fluctuations.
Similar content being viewed by others
References
R.S. Lawrence, J.W. Strohbehn: Proc. IEEE58, 1523 (1970)
J.W. Strohbehn:Progress in Optics, Vol. 9, ed. by E. Wolf (North-Holland, Amsterdam 1971), pp. 73–122
V.I. Tatarski:Wave Propagation in a Turbulent Medium (McGraw-Hill, New York 1961)
L.A. Chernov:Wave Propagation in a Random Medium (McGraw-Hill, New York 1960)
P. Burlamacchi, A. Consortini: Optica Acta14, 17 (1967)
P. Burlamacchi, A. Consortini, L. Ronchi: Appl. Opt.6, 1273 (1967)
M. Carnevale, B. Crosignani, P. Di Porto: Appl. Opt.7, 1121 (1968)
M. Bertolotti, M. Carnevale, L. Muzii, D. Sette: Appl. Opt.7, 2246 (1968)
M. Bertolotti, M. Carnevale, B. Crosignani, P. Di Porto: Appl. Opt.8, 1111 (1969)
M. Bertolotti, M. Carnevale, B. Daino, D. Sette: Appl. Opt.9, 962 (1970)
G.M.B. Bouricius, S.F. Clifford: J. Opt. Soc. Am.60, 1484 (1970); also Rev. Sci. Instrum.41, 1800 (1970)
S.F. Clifford, G.M.B. Bouricius, G.R. Ochs, M.H. Ackley: J. Opt. Soc. Am.61, 1279 (1971)
M. Bertolotti, L. Muzii, D. Sette: J. Opt. Soc. Am.60, 1603 (1970)
Y. Ohtsuka, I. Sasaki, T. Asakura: Opto-electronics4, 357 (1972)
Y. Ohtsuka, I. Sasaki: Appl. Phys.3, 15 (1974)
M.J. Rudd: J. Phys. E.: Sci. Instrum.2, 55 (1969)
Author information
Authors and Affiliations
Additional information
Visiting Fellow at Department of Electronics, The University of Southampton, England, October 1974–September 1975.
Rights and permissions
About this article
Cite this article
Ohtsuka, Y., Sasaki, I. Light-beat method to process phase fluctuations of a laser light beam. Appl. Phys. 7, 265–270 (1975). https://doi.org/10.1007/BF00900322
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00900322