Rotorcraft Airspeed Measurement System

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$373,393.00
Award Year:
2011
Program:
SBIR
Phase:
Phase II
Contract:
N68335-11-C-0137
Award Id:
n/a
Agency Tracking Number:
N093-182-0062
Solicitation Year:
2009
Solicitation Topic Code:
N093-182
Solicitation Number:
2009.3
Small Business Information
Photonic Systems Division, 20600 Gramercy Place, Bldg. 100, Torrance, CA, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
Y
Duns:
153865951
Principal Investigator:
Sivanesan Ponniah
Group Leader
(310) 320-3088
psproposals@poc.com
Business Contact:
Gordon Drew
Chief Financial Officer
(310) 320-3088
gedrew@poc.com
Research Institution:
n/a
Abstract
To address the Navy"s need, Physical Optics Corporation (POC) has developed a new Rotorcraft Airspeed Measurement (RAM) system. This RAM system is based on self-mixing interference in a semiconductor laser diode. During Phase I, POC proved feasibility of the RAM system with a new velocity sensor system design, performance analysis, and assembly and testing of a RAM prototype that demonstrated wind speed measurements at a POC laboratory. This prototype has proven that RAM can measure wind speeds with greater than 2% accuracy and with a signal-to-noise ratio better than 10. The theoretical estimates have shown the optical Doppler signal is amplified by the cavity gain medium, enabling a much higher (~10^3) signal-to-noise ratio than traditional laser-based systems. Simulations for determining the optimal emitter size showed that an emitter radius larger than 2.5 cm is sufficient to achieve carrier-to-noise ratio of nearly 1000 at 15 m from the laser using 1550 nm laser wavelength. In Phase II, POC will develop a RAM prototype using a 1-W laser, enabling RAM to concurrently measure multidirectional low airspeed of rotorcraft. The resulting RAM will be ready for mass production and rapid transitioning to the Navy for deployment during AMCM missions.

* information listed above is at the time of submission.

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