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

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
52242
Program Year/Program:
2001 / SBIR
Agency Tracking Number:
011NM-1455
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
G A Tyler Assoc. Inc. dba the Optical Sciences Co.
1341 South Sunkist Street Anaheim, CA 92806-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2001
Title: Scintillation Resistant Wave-Front Sensors for Strong-Turbulence Adaptive Optics
Agency / Branch: DOD / USAF
Contract: F29601-01-C-0096
Award Amount: $99,046.00
 

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.

Principal Investigator:

Terry Brennan
Senior Scientist
7147727668
tbrennan@tosc.com

Business Contact:

Glenn Tyler
President
7147727668
gatyler@tosc.com
Small Business Information at Submission:

G A TYLER ASSOC., INC.
1341 S. Sunkist St. Anaheim, CA 92806

EIN/Tax ID: 330525149
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No