Measurements of partially spatially coherent laser beam intensity fluctuations propagating through a hot-air turbulence emulator and comparison with both terrestrial and maritime environments

C. Nelson, S. Avramov-Zamurovic, Olga Korotkova, R. Malek-Madani, R. Sova, Frederic Davidson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Measurements of partially spatially coherent infra-red laser beam intensity fluctuations propagating through a hot-air turbulence emulator are compared with visible laser beam intensity fluctuations in the maritime and IR laser beam intensity fluctuations in the terrestrial environment at the United States Naval Academy. The emulator used in the laboratory for the comparison is capable of generating controlled optical clear air turbulence ranging from weak to strong scintillation. Control of the degree of spatial coherence of the propagating laser beam was accomplished using both infrared and visible spatial light modulators. Specific statistical analysis compares the probability density and temporal autocovariance functions, and fade statistics of the propagating laser beam between the in-laboratory emulation and the maritime field experiment. Additionally, the scintillation index across varying degrees of spatial coherence is compared for both the maritime and terrestrial field experiments as well as the in-laboratory emulation. The possibility of a scintillation index 'sweet' spot is explored.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8610
DOIs
StatePublished - 2013
EventFree-Space Laser Communication and Atmospheric Propagation XXV - San Francisco, CA, United States
Duration: Feb 5 2013Feb 7 2013

Other

OtherFree-Space Laser Communication and Atmospheric Propagation XXV
CountryUnited States
CitySan Francisco, CA
Period2/5/132/7/13

Fingerprint

high temperature air
Laser Beam
Laser beams
Turbulence
turbulence
laser beams
Scintillation
Fluctuations
scintillation
Air
Field Experiment
Emulation
infrared lasers
clear air turbulence
Infrared
Autocovariance Function
Spatial Light Modulator
Infrared lasers
light modulators
Probability Density

Keywords

  • atmospheric turbulence
  • Free-space optical communications
  • hot-air turbulence emulator
  • maritime
  • partial spatial coherence

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nelson, C., Avramov-Zamurovic, S., Korotkova, O., Malek-Madani, R., Sova, R., & Davidson, F. (2013). Measurements of partially spatially coherent laser beam intensity fluctuations propagating through a hot-air turbulence emulator and comparison with both terrestrial and maritime environments. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8610). [86100T] https://doi.org/10.1117/12.2003307

Measurements of partially spatially coherent laser beam intensity fluctuations propagating through a hot-air turbulence emulator and comparison with both terrestrial and maritime environments. / Nelson, C.; Avramov-Zamurovic, S.; Korotkova, Olga; Malek-Madani, R.; Sova, R.; Davidson, Frederic.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8610 2013. 86100T.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nelson, C, Avramov-Zamurovic, S, Korotkova, O, Malek-Madani, R, Sova, R & Davidson, F 2013, Measurements of partially spatially coherent laser beam intensity fluctuations propagating through a hot-air turbulence emulator and comparison with both terrestrial and maritime environments. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8610, 86100T, Free-Space Laser Communication and Atmospheric Propagation XXV, San Francisco, CA, United States, 2/5/13. https://doi.org/10.1117/12.2003307
Nelson C, Avramov-Zamurovic S, Korotkova O, Malek-Madani R, Sova R, Davidson F. Measurements of partially spatially coherent laser beam intensity fluctuations propagating through a hot-air turbulence emulator and comparison with both terrestrial and maritime environments. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8610. 2013. 86100T https://doi.org/10.1117/12.2003307
Nelson, C. ; Avramov-Zamurovic, S. ; Korotkova, Olga ; Malek-Madani, R. ; Sova, R. ; Davidson, Frederic. / Measurements of partially spatially coherent laser beam intensity fluctuations propagating through a hot-air turbulence emulator and comparison with both terrestrial and maritime environments. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8610 2013.
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