OPTICAL BEAM PROPAGATION FOR A PARTIALLY COHERENT SOURCE IN THE TURBULENT ATMOSPHERE.

S. C H Wang, M. A. Plonus

Research output: Contribution to journalArticlepeer-review

287 Scopus citations

Abstract

The extended Huygens-Fresnel principle is used to formulate general expressions of the mutual intensity function for a finite optical source with partial spatial coherence propagating in the weakly turbulent atmosphere. Formulations are developed for both the focused and collimated Gaussian beam. Generalized criterion for the effective far-field range is defined in terms of the source aperture, optical wave number, source coherence, and characteristic length associated with the atmospheric turbulence. Beam spread and lateral coherence length in the near and far field are studied for a combination of parameter variations and the physical implications discussed. Finally, analytic results illustrate the functional behavior of relevant physical parameters.

Original languageEnglish (US)
Pages (from-to)1297-1304
Number of pages8
JournalJournal of the Optical Society of America
Volume69
Issue number9
DOIs
StatePublished - Jan 1 1979

ASJC Scopus subject areas

  • Engineering(all)

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