AN ELECTRO-OPTIC MODULATOR FOR REMOTE LASER BEAM WAVEFRONT CORRECTION AND MICRO-POSITIONING IN SPACE

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$49,935.00
Award Year:
1990
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
12052
Agency Tracking Number:
12052
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
3 Preston Court, Bedford, MA, 01730
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Camille F. Fuleihan
Director Materials Research
(617) 275-3100
Business Contact:
CARDINAL WARDE
PRESIDENT
(617) 275-3100
Research Institution:
n/a
Abstract
THE USE OF LASER SYSTEMS FOR SPACE-BASED COMMUNICATION APPLICATIONS IS EXPECTED TO BE WIDELY IMPLEMENTED IN FUTURE SPACECRAFT. THIS PROPOSAL ADDRESSES THE CRITICAL TECHNOLOGICAL ISSUES OF POINTING, CORRECTING AND FOCUSING A LASER BEAM FOR SATELLITE OPTICAL COMMUNICATION UNDER A DYNAMIC OPERATING ENVIRONMENT AND STRINGENT MISSION REQUIREMENTS. THE FINE POINTING AND JITTER CONTROL REQUIREMENTS OF THESE ADVANCED COMMUNICATIONS SYSTEMS PRESENTS A SERIOUS CHALLENGE TO CONTROL ENGINEERS IN THE AREAS OF ACQUISITION, TRACKING AND POINTING. OPTRON SYSTEMSPROPOSES TO DEVELOP AN ADAPTIVE OPTICAL, COMPUTER-CONTROLLEDELECTRO-OPTIC PHASE MODULATOR WHICH WILL RESULT IN AN ACTIVE OPTICAL COMPONENT WITH NO MOVING PARTS THAT IS CAPABLE OF MICRORADIAN POINTING ACCURACY. UNDER SOFTWARE CONTROL THIS ELECTRO-OPTICAL DEVICE CAN BE USED TO DEFLECT, FOCUS, COLLIMATE, RESHAPE OR OTHERWISE MODULATE A COHERENT BEAM OF LIGHT. WITH THE ADDITION OF A WAVEFRONT SENSOR AND A FEEDBACK PATH THE MODULATOR IS READILY INCORPORATED INTO CLOSED-LOOP SYSTEMS FOR SUCH PURPOSES AS AUTOMATIC WAVEFRONT CORRECTION, AUTOMATIC FOCUSING AND TARGET TRACKING. PHASE I OBJECTIVES INCLUDE CONSTRUCTION AND EVALUATION OF A PROTOTYPE ELECTRO-OPTIC MODULATOR. PHASE II WILL ADDRESS SPECIFIC ISSUES OF OPTIMIZATION.

* information listed above is at the time of submission.

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