This GRANT is continuation of N00014-12-1-1029, Laser Beam Propagation through the Low Atmosphere in Deep Turbulence
Abstract
This effort will develop models of deep optical turbulence effects on a propagating laser beam in non-homogeneous and anisotropic conditions. Theoretical modeling, simulation and experimentation involving using the EBS signal for adaptive optics for beam control. This will include the parallel use of use of a plenoptic camera to provide control signals to the AO system.Theoretical modeling: Theoretical models will be developed for the EBS from rough surface targets under various optical turbulence conditions. Additionally models will be developed for the control algorithm for the AO transmitter mirror so as to minimize the illumination spot size on the target?s surface.Simulations: Simulations will be conducted for the operation of the AO system over ranges up to 12 km. The simulation results will be compared to experimentation theoretical results.Experimentation: Experiments will be conducted with completed optical turbulence instrumentation along the propagation path. Characterized rough surface targets will be used of various roughness correlation lengths up to a retro-reflector of 5cm. Experiments will conducted with a transmitter apertures sizes of 25 cm to 50 cm in diameter. These experiments will conduct staring at a range of 1 km, to 5 km and 12 km. The data will be compared to the theoretical and simulation modeling.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 30, 2016
- Source ID
- N000141612944
Entities
People
- Christopher Davis
Organizations
- Office of Naval Research
- United States Navy
- University of Maryland