Abstract
Atmospheric effects limit the performance of any electro-optical system. Tasks such as laser communication and delivery of directed energy are significantly affected by turbulence and refraction. A correction of atmospheric effects on the propagation of light can be done by adaptive optics (AO). Unconventional wavefront sensing strategies are being developed to provide alternatives for measuring the wavefront deformation of a laser beam propagating through strong turbulence and/or along a horizontal-path. In this paper we present results from two “wavefront-sensorless” approaches: stochastic parallel gradient descent (SPGD) and its modal version (M-SPGD).
© 2016 Optical Society of America
PDF ArticleMore Like This
Karin Stein
SM2H.1 Applications of Lasers for Sensing and Free Space Communications (LS&C) 2018
Jason Porter, Nripun Sredar, Hope Queener, Chaohong Li, and Heidi Hofer
OTu1A.1 Adaptive Optics: Methods, Analysis and Applications (AO) 2013
Chaojun Niu and Xiang’e Han
JTu5A.6 3D Image Acquisition and Display: Technology, Perception and Applications (3D) 2017