Atmospheric Compensation with a Speckle Beacon Under Strong Scintillation Conditions: Directed Energy and Laser Communication Applications
Wavefront control experiments in strong scintillation conditions (scintillation index, ≃1) over a 2.33 km, near-horizontal, atmospheric propagation path are presented. The adaptive-optics system used comprises a tracking and a fast-beam-steering mirror as well as a 132-actuator, microelectromechanical-system, piston-type deformable mirror with a VLSI controller that implements stochastic parallel gradient descent control optimization of a system performance metric. The experiments demonstrate mitigation of atmospheric distortions with a speckle beacon typical for directed energy and free-space laser communication applications.
Copyright © 2005, Optical Society of America
Optical Society of America
Place of Publication
Weyrauch, Thomas and Vorontsov, Mikhail, "Atmospheric Compensation with a Speckle Beacon Under Strong Scintillation Conditions: Directed Energy and Laser Communication Applications" (2005). Electro-Optics and Photonics Faculty Publications. 105.