# Numerical investigation of short-pulse laser radiation propagation in a turbulent atmosphere

## Abstract

An algorithm is presented for the numerical simulation of short-pulse optical radiation propagation in a turbulent atmosphere on the basis of the solution to the parabolic wave equation for the complex spectral amplitude of the wave field by the split-step method. We present examples of the use of this algorithm for simulating the propagation of a pulsed coherent spatially limited beam and a plane wave. It is shown that in the regime of strong optical turbulence the relative variance of fluctuations of energy density of femtosecond radiation becomes much smaller than the relative variance of the intensity of cw radiation. (laser radiation scattering)

- Authors:

- V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk (Russian Federation)

- Publication Date:

- OSTI Identifier:
- 22551296

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 45; Journal Issue: 3; Other Information: Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BEAMS; COMPUTERIZED SIMULATION; ENERGY DENSITY; LASER RADIATION; MATHEMATICAL SOLUTIONS; PULSES; TURBULENCE; WAVE EQUATIONS; WAVE PROPAGATION

### Citation Formats

```
Banakh, V A, Gerasimova, L O, and Smalikho, I N.
```*Numerical investigation of short-pulse laser radiation propagation in a turbulent atmosphere*. United States: N. p., 2015.
Web. doi:10.1070/QE2015V045N03ABEH015620.

```
Banakh, V A, Gerasimova, L O, & Smalikho, I N.
```*Numerical investigation of short-pulse laser radiation propagation in a turbulent atmosphere*. United States. doi:10.1070/QE2015V045N03ABEH015620.

```
Banakh, V A, Gerasimova, L O, and Smalikho, I N. Tue .
"Numerical investigation of short-pulse laser radiation propagation in a turbulent atmosphere". United States.
doi:10.1070/QE2015V045N03ABEH015620.
```

```
@article{osti_22551296,
```

title = {Numerical investigation of short-pulse laser radiation propagation in a turbulent atmosphere},

author = {Banakh, V A and Gerasimova, L O and Smalikho, I N},

abstractNote = {An algorithm is presented for the numerical simulation of short-pulse optical radiation propagation in a turbulent atmosphere on the basis of the solution to the parabolic wave equation for the complex spectral amplitude of the wave field by the split-step method. We present examples of the use of this algorithm for simulating the propagation of a pulsed coherent spatially limited beam and a plane wave. It is shown that in the regime of strong optical turbulence the relative variance of fluctuations of energy density of femtosecond radiation becomes much smaller than the relative variance of the intensity of cw radiation. (laser radiation scattering)},

doi = {10.1070/QE2015V045N03ABEH015620},

journal = {Quantum Electronics (Woodbury, N.Y.)},

number = 3,

volume = 45,

place = {United States},

year = {Tue Mar 31 00:00:00 EDT 2015},

month = {Tue Mar 31 00:00:00 EDT 2015}

}

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