Scintillation Resistant Wave-Front Sensors for Strong-Turbulence Adaptive Optics

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,046.00
Award Year:
2001
Program:
SBIR
Phase:
Phase I
Contract:
F29601-01-C-0096
Award Id:
52242
Agency Tracking Number:
011NM-1455
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1341 S. Sunkist St., Anaheim, CA, 92806
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
801256199
Principal Investigator:
Terry Brennan
Senior Scientist
(714) 772-7668
tbrennan@tosc.com
Business Contact:
Glenn Tyler
President
(714) 772-7668
gatyler@tosc.com
Research Institution:
n/a
Abstract
Wavefront sensing in high scintillation environments is degraded in conventional sensors by a coupling, in the measurement, between phase and irradiance variations. An evaluation of this effect, and its impact on performance of systems, such as ABL, isproposed. An innovative wavefront sensor design has been proposed which mitigates this effect by pixel-level processing of the data. The design exhibits other advantageous features such as ease of implementation, elimination of the unobservable wafflemode, potential noise gain reduction, and measurements which permit both linear and non-linear (branch-cut) phase reconstruction. This design will be fully evaluated, analytically and in simulation, and fine-tuned as necessary. This proposed sensor design will improve phase gradient measurement precision in high scintillation, resulting in increased Strehl ratio performance of a conventional least-squares reconstruction. It will also support the use of branch-cut phasereconstruction.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government