Measurements of Intensity Scintillations and Probability Density Functions of Retroreflected Broadband 980-nm Laser Light in Atmospheric Turbulence
Abstract
Intensity scintillation variances and intensity probability density functions (PDFs) were experimentally measured for broadband (2 nm), 980-nm laser light reflected by two or more corner cube retroreflectors as a function of retroreflector lateral spacing over a short (75 m) atmospheric optical path. The PDFs transitioned from broad doublepeaked beta-shaped densities to lognormal as the retroreflector spacing was increased to exceed the optical field's lateral coherence length. Specific spacing for a given average atmospheric structural C2n eliminated interference between the light beams returned by the retroreflectors.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2004
- Accession Number
- ADA472236
Entities
People
- Eun Oh
- Frederic M. Davidson
- G. C. Gilbreath
- Stephane Bucaille
Organizations
- Johns Hopkins University