Accession Number : AD0709579

Title :   DETERMINATION OF ATMOSPHERICALLY INDUCED PHASE FLUCTUATIONS BY LONG DISTANCE INTERFEROMETRY AT 6328 A.

Descriptive Note : Technical rept.,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s) : Buser,Rudolf G. ; Born,Gunthard K.

Report Date : MAY 1970

Pagination or Media Count : 21

Abstract : Experimental values of atmospherically induced phase fluctuations have been obtained for various pathlengths using a near-ground horizontal Mach-Zehnder setup at 6328 A. Independent determination of the structure function constant of the refractive index and other relevant parameters permitted a clear definition of prevailing meteorological conditions. It is found that for low turbulence, or strong turbulence and short pathlength, Tatarski's theory generally under-estimates the values of the observed rms phase fluctuations. For higher turbulence no continuous phase information is directly obtainable, and the concept of phase structure function becomes experimentally undefined. (Author)

Descriptors :   (*LIGHT TRANSMISSION, PHASE DISTORTION), OPTICAL COMMUNICATIONS, INTERFEROMETERS, GAS LASERS, ATMOSPHERIC MOTION

Subject Categories : Lasers and Masers
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE