Propagation of Multiwavelength Laser Radiation through Atmospheric Turbulence
Interim technical rept. 1 Dec 1973-30 Apr 1974
OREGON GRADUATE CENTER BEAVERTON
Pagination or Media Count:
The effects of atmospheric turbulence on target irradiance using a nearfield, wander-tracking laser transmitter have been investigated in detail. A unified analytical and phenomenological treatment of the mean irradiance and its fluctuations is presented, with supporting experimental data. The advantages to be gained through the use of wander cancellation are seen to be substantial, and in many cases larger than predicted by the basic theory. A brief description is also given of the investigation of the short-term statistics of turbulence and scintillations. Theoretical and experimental results have been obtained for the prediction of confidence intervals or data spread in such measurements, and the effects of averaging times. In addition, a computer simulation technique has been formulated for the generation of an ensemble of instantaneous, short propagation paths through turbulence.
- Lasers and Masers
- Infrared Detection and Detectors