Abstract

A general method which allows precise measurements of the frequency spectrum of a phase modulated wave down to a few cycles per second is presented. The momenta of the distribution of the instantaneous frequency (time derivative of the phase) can also be easily obtained. An experiment is described in which the study of the phase correlation induced by a laboratory generated thermal turbulence in a laser beam is described.

© 1970 Optical Society of America

Log-Intensity Correlations of a Laser Beam in a Turbulent Medium

E. Collett, R. Alferness, and T. Forbes
Appl. Opt. 12(5) 1067-1070 (1973)

Gaussian Beams in Turbulent Media

A. Consortini and L. Ronchi
Appl. Opt. 9(1) 125-128 (1970)

Correlation Measurements on Partially Coherent Beams by Means of an Integration Technique

M. Bertolotti, L. Muzii, and D. Sette
J. Opt. Soc. Am. 60(12) 1603-1607 (1970)

Multifractality of laser beam spatial intensity in a turbulent medium

Régis Barille and Paolo LaPenna
Appl. Opt. 45(14) 3331-3339 (2006)

Heterodyne measurements of laser light scattering by a turbulent phase screen

Kevin D. Ridley, Stephen M. Watson, Eric Jakeman, and Michael Harris
Appl. Opt. 41(3) 532-542 (2002)