Nonlinear phase-conjugate mirrors for atmospheric distortion compensation

Nikolay A. Romanov; Aleksey A. Leshchev; Andrey Yu. Rodionov; Victor E. Semenov; Vladimir E. Sherstobitov; Nina V. Vysotina

doi:10.1117/12.349231

26 May 1999 Nonlinear phase-conjugate mirrors for atmospheric distortion compensation

Nikolay A. Romanov, Aleksey A. Leshchev, Andrey Yu. Rodionov, Victor E. Semenov, Vladimir E. Sherstobitov, Nina V. Vysotina

Author Affiliations +

Proceedings Volume 3610, Laser Material Crystal Growth and Nonlinear Materials and Devices; (1999) https://doi.org/10.1117/12.349231
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

The severe requirements are posed on nonlinear phase conjugation (PC) mirrors with using those for compensation of laser beam aberrations in turbulent atmosphere at large distances. These requirements are connected with high losses of a laser-illuminator radiation due to atmospheric beam spreading and also with strong modulation of phase and intensity distribution in the beam being conjugated. To specify these requirements we present in this paper results of numerical simulation of the process of PC correction of atmospheric distortion. The simulation was carried out for various parameters of an atmospheric range and various radiation wavelengths. It was shown that in the case of strong turbulent scintillation the PC compensation allows one to increase the beam intensity by three orders of magnitude. The beam energy delivered to the receiver is close to that delivered in absence of turbulence if turbulent inhomogeneities of high spatial frequency are resolved by transmitter. The requirements to the PC mirror are formulated for the angle of view, reflection coefficient, reproduction fidelity, etc. The influence of saturation effects in a laser amplifier on fidelity of atmospheric distortion compensation is analyzed.

Citation Download Citation

Nikolay A. Romanov, Aleksey A. Leshchev, Andrey Yu. Rodionov, Victor E. Semenov, Vladimir E. Sherstobitov, and Nina V. Vysotina "Nonlinear phase-conjugate mirrors for atmospheric distortion compensation", Proc. SPIE 3610, Laser Material Crystal Growth and Nonlinear Materials and Devices, (26 May 1999); https://doi.org/10.1117/12.349231

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