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Self-Mixing Laser Anemometer

Award Information

Department of Defense
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Physical Optics Corporation
1845 West 205th Street Torrance, CA 90501-1510
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2011
Title: Self-Mixing Laser Anemometer
Agency / Branch: DOD / NAVY
Contract: N68335-11-C-0004
Award Amount: $750,000.00


To address the Navy"s need for a system to measure three-component airflow velocities in the vicinity of full-scale helicopters, Physical Optics Corporation (POC) has developed and demonstrated an innovative Self-Mixing Laser Anemometer (SMILA) prototype. This proposed system is based on the self-mixing interference in a diode laser cavity. The innovative use of high-power semiconductor diode lasers in a non-coplanar geometry enables the SMILA system to measure three-component velocity of airflow in open airspace. In Phase I, POC demonstrated the feasibility of the SMILA system by measuring the velocity of unidirectional airflow in a laboratory environment with accuracy of within 2% in the velocity range 04 miles per hour. Additionally, less than 2 cm spatial resolution at 10-ft measurement range was achieved with the prototype using only 6-mW laser power. In Phase II, POC plans to develop a shipboard-deployable SMILA prototype using a 1-W laser, enabling SMILA to concurrently measure three-component airflow velocities throughout a volume of interest (400 ft x 160 ft x 40 ft) with spatial and frequency resolutions of 2 ft and 20 Hz, respectively. The prototype developed in Phase II will be installed and tested in a Navy ship or similar platform recommended by the Navy.

Principal Investigator:

Sivanesan Ponniah
Group Leader
(310) 320-3088

Business Contact:

Gordon Drew
Chief Financial Officer
(310) 320-3088
Small Business Information at Submission:

Physical Optics Corporation
Applied Technologies Division 20600 Gramercy Place, Bldg. 100 Torrance, CA -

EIN/Tax ID: 330118051
Number of Employees:
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No