Journal ArticleDOI
Simulation of laser propagation in a turbulent atmosphere
TLDR
The split-step Fourier-transform algorithm for numerical simulation of wave propagation in a turbulent atmosphere is refined to correctly include the effects of large-scale phase fluctuations that are important for imaging problems and many beam-wave problems such as focused laser beams and beam spreading.Abstract:
The split-step Fourier-transform algorithm for numerical simulation of wave propagation in a turbulent atmosphere is refined to correctly include the effects of large-scale phase fluctuations that are important for imaging problems and many beam-wave problems such as focused laser beams and beam spreading. The results of the improved algorithm are similar to the results of the traditional algorithm for the performance of coherent Doppler lidar and for plane-wave intensity statistics because the effects of large-scale turbulence are less important. The series solution for coherent Doppler lidar performance converges slowly to the results from simulation.read more
Citations
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Journal ArticleDOI
Physics and Computation of Aero-Optics
TL;DR: A critical review of aero-optics with an emphasis on recent developments in computational predictions and the physical mechanisms of flow-induced optical distortions is provided in this paper, along with a brief survey of wave-front sensors used in experimental measurements.
Journal ArticleDOI
Aberration corrections for free-space optical communications in atmosphere turbulence using orbital angular momentum states
TL;DR: The numerical results show that the phase correction method for OAM states outperforms the Shark-Hartmann wavefront correction method, although both methods improve significantly purity of a single OAM state and the channel capacities of FSO communication link.
Journal ArticleDOI
Roadmap to free space optics
TL;DR: This tutorial-style review provides a broad overview of many of the important topics required to design, develop, and research the next generation of FSO technology.
Journal ArticleDOI
Exponentiated Weibull model for the irradiance probability density function of a laser beam propagating through atmospheric turbulence
Ricardo Barrios,Federico Dios +1 more
TL;DR: In this article, the exponentiated Weibull (EW) distribution has been proposed to model the probability density function of irradiance fluctuations, along with a physical justification for the appearance of the model.
Journal ArticleDOI
Propagation of Bessel and Airy beams through atmospheric turbulence.
TL;DR: The turbulence-induced transverse phase distortion limits the effectiveness of Bessel and Airy beams for applications requiring propagation over long distances in the turbulent atmosphere.
References
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Journal ArticleDOI
Time-dependent propagation of high-energy laser beams through the atmosphere: II
TL;DR: In this article, a time-dependent three-space-dimensional laser beam propagation is described, where the authors use a discrete Fourier transform (DFT) method for diffraction problems.
Book ChapterDOI
V The Effects of Atmospheric Turbulence in Optical Astronomy
TL;DR: In this article, the authors discuss the effects of atmospheric turbulence in optical astronomy, summarizes the present state of the theory, reviews the experimental checks that have been made, and discusses the implications in the domain of astronomical observations.
Journal ArticleDOI
Simulation of a Kolmogorov phase screen
TL;DR: In this paper, two methods for modeling Kolmogorov phase fluctuations over a finite aperture are described, one relies on the incorporation of subharmonics in order to model accurately the low frequencies of the Kolgorov spectrum.
Journal ArticleDOI
Intensity images and statistics from numerical simulation of wave propagation in 3-D random media
J. M. Martin,Stanley M. Flatté +1 more
TL;DR: An extended random medium is modeled by a set of 2-D thin Gaussian phase-changing screens with phase power spectral densities appropriate to the natural medium being modeled, showing that under weak scattering the small-scale Fresnel length structure of the medium dominates the intensity scattering pattern.
Journal ArticleDOI
Atmospheric wavefront simulation using Zernike polynomials
TL;DR: An algorithm is described that simulates atmospherically distorted wavefronts using a Zernike expansion of randomly weighted Karhunen- Loeve functions, and is then used to forecast resulting structure function and Strehl resolution for adaptive optics systems.
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Intensity images and statistics from numerical simulation of wave propagation in 3-D random media
J. M. Martin,Stanley M. Flatté +1 more