Experiment to obtain optical turbulence information along a 2.33 km free-space laser propagation path from measurements of scintillation and focal spot displacement

2008 ◽  
Author(s):  
Arnold Tunick
Keyword(s):  
Free Space ◽  
Focal Spot ◽  
Propagation Path ◽  
Optical Turbulence ◽  
Laser Propagation

Optical Turbulence Model for Laser Propagation and Imaging Applications

2004 ◽  
Author(s):  
E. S. Oh ◽  
J. C. Ricklin ◽  
G. C. Gilbreath ◽  
N Vallestero ◽  
Eaton J. ◽  
...  
Keyword(s):  
Turbulence Model ◽  
Optical Turbulence ◽  
Laser Propagation

Estimating optical turbulence effects on free-space laser communication: modeling and measurements at ARL's A_LOT facility

2004 ◽  
Author(s):  
Yeonju Han Oh ◽  
Jennifer C. Ricklin ◽  
Eun Oh ◽  
Stephen Doss-Hammel ◽  
Frank D. Eaton
Keyword(s):  
Free Space ◽  
Laser Communication ◽  
Optical Turbulence ◽  
Turbulence Effects

Splitting of the focal spot of a high numerical-aperture objective in free space

2002 ◽  
Vol 81 (9) ◽  
pp. 1576-1578 ◽  
Author(s):  
James W. M. Chon ◽  
Xiaosong Gan ◽  
Min Gu
Keyword(s):  
Free Space ◽  
Focal Spot ◽  
Numerical Aperture ◽  
High Numerical Aperture

scholarly journals Coherent optical binary polarisation shift keying heterodyne system in the free-space optical turbulence channel

2011 ◽  
Vol 5 (9) ◽  
pp. 1031 ◽  
Author(s):  
X. Tang ◽  
Z. Ghassemlooy ◽  
S. Rajbhandari ◽  
W.O. Popoola ◽  
C.G. Lee
Keyword(s):  
Free Space ◽  
Free Space Optical ◽  
Optical Turbulence ◽  
Heterodyne System ◽  
Shift Keying

scholarly journals Recovery Capabilities of Rateless Codes on Simulated Turbulent Terrestrial Free Space Optics Channel Model

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
A. Andò ◽  
S. Mangione ◽  
L. Curcio ◽  
S. Stivala ◽  
G. Garbo ◽  
...  
Keyword(s):  
Free Space ◽  
Channel Model ◽  
Optical Power ◽  
Optical Signal ◽  
Free Space Optics ◽  
Optical Turbulence ◽  
High Data ◽  
Space Optics ◽  
Error Mitigation ◽  
Channel Codes

Free Space Optics (FSO) links are affected by several impairments: optical turbulence, scattering, absorption, and pointing. In particular, atmospheric optical turbulence generates optical power fluctuations at the receiver that can degrade communications with fading events, especially in high data rate links. Innovative solutions require an improvement of FSO link performances, together with testing models and appropriate channel codes. In this paper, we describe a high-resolution time-correlated channel model able to predict random temporal fluctuations of optical signal irradiance caused by optical turbulence. Concerning the same channel, we also report simulation results on the error mitigation performance of Luby Transform, Raptor, and RaptorQ codes.

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