PARTIALLY COHERENT (WIDEBAND) INFRARED LIDAR SYSTEM FOR SPACE BASED AEROSOL BACKSCATTER AND CLOUD HEIGHT MEASUREMENTS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,744.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
5652
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Coherent Technologies Inc
3300 Mitchell Ln - Ste 330, Boulder, CO, 80301
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
R MILTON HUFFAKER
(303) 449-8736
Business Contact:
() -
Research Institution:
n/a
Abstract
BECAUSE OF LIMITATIONS IN DETECTOR TECHNOLOGY IT IS NOT CURRENTLY PRACTICAL TO OPERATE AN INCOHERENT SPACE LIDAR IN THE EYESAFE REGION FOR AEROSOL BACKSCATTER MEASUREMENT. THIS PROPOSED EFFORT COMBINES THE SIMPLICITY OF INCOHERENT LIDARS WITH THE EXTREME SENSITIVITY OF COHERENT DETECTION TO OBTAIN SENSITIVE PERFORMANCE IN THE EYESAFE INFRARED REGION. THIS EFFORT WILL DETERMINE THE FEASIBILITY, PERFORMANCE, AND DESIGN PARAMETERS OF A "SIMPLIFIED", PARTIALLY COHERENT (WIDEBAND), INFRARED LASER RADAR SYSTEM FOR AEROSOL BACKSCATTER AND CLOUD HEIGHT MEASUREMENTS FROM A SPACE PLATFORM OPERATING IN THE EYESAFE REGION. THE PARTIALLY COHERENT LIDAR SYSTEM WILL RETAIN THE HETERODYNE DETECTION PROCESS, AND THEREFORE THE LOCAL OSCILLATOR, OF A FULLY COHERENT LIDAR SYSTEM, BUT WILL HAVE RELAXED SPECIFICATIONS IN THE AREAS OF TRANSMITTED PULSE FREQUENCY STABILITY, LOCAL OSCILLATOR FREQUENCY STABILITY, TRANSMITTED PULSE NARROW BANDWIDTH, RECEIVER NARROW BANDWIDTH, MECHANICAL AND OPTICAL TOLERANCES, AND DATA PROCESSING COMPLEXITY. IT WILL THEREFORE APPROACH THE SIMPLICITY OF AN INCOHERENT LIDAR SYSTEM BUT WILL BE MANY ORDERS OF MAGNITUDE MORE SENSITIVE IN THE EYESAFE, COVERT, INFRARED REGION ABOVE 1.4 MICRONS. IT IS EXPECTED THAT PARTIALLY COHERENT LIDAR SYSTEMS WILL BE IDEALLY SUITED TO THE PRESENT TECHNOLOGY IN SHORT-PULSE (WIDEBAND) INJECTIONSEEDED SOLID-STATE LASERS.

* information listed above is at the time of submission.

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