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Thermal blooming compensation with adaptive optics.

¹Government Products Division, Pratt & Whitney Aircraft, West Palm Beach, Florida 33402, USA.

|August 15, 2009

Summary

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Adaptive optics effectively correct thermal blooming distortions, achieving stable correction factors. The system also corrects turbulence alongside blooming, with results influenced by scenario geometry and system parameters.

Area of Science:

Optical Engineering
Laser Physics
Atmospheric Optics

Background:

Thermal blooming is a significant distortion in laser propagation.
Adaptive optics (AO) systems are crucial for mitigating optical aberrations.

Purpose of the Study:

To evaluate the effectiveness of a multidither adaptive optical system in correcting thermal blooming.
To investigate turbulence correction capabilities in the presence of thermal blooming.

Main Methods:

Utilized a multidither adaptive optical system.
Quantified correction factors for thermal blooming distortions.
Observed system performance under combined turbulence and blooming conditions.

Main Results:

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Achieved stable correction factors ranging from 1.3 to 4.

Demonstrated successful turbulence correction concurrent with thermal blooming correction.

Identified significant influence of blooming scenario geometry and AO system parameters on correction factor.

Conclusions:

Multidither adaptive optics provide a viable solution for thermal blooming compensation.
System performance is sensitive to environmental and operational parameters.
Further research can optimize AO system design for specific blooming conditions.