HOBBIT Control System Development for Higher Order Bessel Beams Integrated in Time (HOBBIT)
Abstract
Horizontal path propagation through the maritime atmosphere is one of the most difficult Scienceand Technology issues faced by Dire"cted Energy systems. The community has been working withand evaluating a number of different solutions; however, none to date have" solved the problem ofdeep turbulence. Deep turbulence has various definitions; here we will define it as an optical pathwith a Rytov variance greater than 1. Deformable mirrors run out of throw in order to handle theamount of deformation in the path-length and" throw angle. The bandwidth necessary to overcomethe changing atmosphere in deep turbulence is also extremely challenging to meet," requiringsignificant SWaP and increasing the complexity of the system. These factors would tend to drivethe answer to deep turbul"ence propagation to a solid-state solution; yet our current technologyinvolves mechanical pistons, piezo-electric stacks or electro"static voltages moving a thinmembrane or mirror segments to provide the corrective wave-front necessary to compensate forturbulenc"e, with the resultant difficulties in operating a mechanical system at high speed with verytight tolerances. Additionally, most stu"dies have been performed using Gaussian beams and haveneglected the possibility of using other beams that are tailored in space and time. Combining theneed for an integrated beam control system with space and time control would provide atransformative solution for the DE community Our approach will be introduce a solid state systemthat will replace the deformable mirror in the current HEL system design with multiple sets ofHigh Order Bessel Beams Integrated with Time (HOBBITs). This proposal will specifically dealwith the necessary control and detection systems for a HOBBIT architecture.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 29, 2017
- Source ID
- N000141712779
Entities
People
- Richard Watkins
Organizations
- Clemson University
- Office of Naval Research
- United States Navy