Long and shortterm Strehl ratios for turbulence with finite inner and outer scales
Abstract
Corrections to the long and shortterm (tilt removed) Strehl ratios of a laser beam propagating through atmospheric turbulence are given for turbulence with finite inner and outer scales. It is found that outerscale corrections are important for longterm Strehl ratios, and innerscale corrections are important for shortterm Strehl ratios. The results are applicable to nearground propagation where the outer scale may be of the same order as the beam diameter and to upper atmospheric propagation where the inner scale may become a significant fraction of the beam diameter. The results are also useful for determining length scales for wave optics propagation codes, since such codes introduce artificial outer and inner scales due to finite grid size and meshpoint separation.
 Publication:

Applied Optics
 Pub Date:
 April 1979
 DOI:
 10.1364/AO.18.000984
 Bibcode:
 1979ApOpt..18..984V
 Keywords:

 Atmospheric Turbulence;
 Coherent Light;
 Laser Outputs;
 Light Transmission;
 Optical Correction Procedure;
 Turbulence Effects;
 Signal Encoding;
 Transmission Efficiency;
 Upper Atmosphere;
 Lasers and Masers;
 ATMOSPHERIC OPTICS;
 TURBULENCE