Multiconjugate Adaptive Optics for Distributed Turbulence

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$98,421.00
Award Year:
2001
Program:
SBIR
Phase:
Phase I
Contract:
F29601-01-C-0144
Award Id:
52231
Agency Tracking Number:
011NM-1934
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
MZA ASSOC. CORP. (Currently MZA Associates Corporation)
2021 Girard SE, Suite 150, Albuquerque, NM, 87106
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
794350025
Principal Investigator:
Stephen Coy
Principal Investigator
(505) 245-9970
coy@mza.com
Business Contact:
Robert Praus II
President
(505) 245-9970
praus@mza.com
Research Institution:
n/a
Abstract
Conventional aperture plane phase-only adaptive optics (AO) is becoming amature technology. We have had decades of experience with up-lookingapplications, where most of the turbulence is close to the aperture, and inrecent years there has been substantial progress in AO for near-horizontalpaths, with distributed turbulence, largely motivated by the Airborne Laser(ABL) Program. Progress continues, but the practical limits of conventionalAO technology for deep turbulence applications are beginning to becomeapparent. These relate to scintillation, high order anisoplanatism, phasebranch points, and the use uncooperative beacons for tracking and higherorder correction under conditions where these effects are prevalent.Conventional AO does not address scintillation or high order anisoplanatismat all, and branch points present serious practical difficulties even whenperfect sensing is assumed. Multiconjugate (MCAO adaptive optics is a lessdeveloped technology involving significant technical challenges, but thereare reasons to believe it may be able to ameliorate these problems, yieldingimproved performance over a wide range of conditions, and, more importantly,yielding acceptable performance in regimes where conventional AO fails. Forthe ABL this would translate into a longer maximum range, and killingmissiles that otherwise would have gotten past.It is anticipated that a multiple deformable mirror adaptive optics system successfully demonstrated under this research, with economical considerations folded in, would have both commercial and militaryapplications. The military applications include the ABL and follow-on systems, Relay Mirror, remote sensing, and any DoD programs utilizing adaptive optics in high scintillation. Other applications include airborne imaging (military and commercial),especially for reconnaissance and surveillance systems that must image through turbulent boundary layers. The commercial market includes such areas as astronomy (retrofitting astronomical sites), laser communication and power beaming. It is expected thatthe contractor will focus on Phase I designs that would maximize both the commercial potential and the military potential.

* information listed above is at the time of submission.

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