Compact optical sensor for detecting and tracking ocean-penetrating laser radar

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 35940
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1997
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Accuwave Corp.
1651 19th St., Santa Monica, CA, 90404
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Feng Zhao
 (310) 449-5540
Business Contact
Phone: () -
Research Institution
N/A
Abstract
The innovation proposed in this SBIR program is to develop a threat warning system against airborne laser radars in the blue-green transmission window. The proposed sensor system characterizes a sample through wavlelength, temporal, and spatial (theta fi) characteristics of the backscattered and source emission signals, enabling the air-borne laser radar to be identitied and tracked. The sensors to be demonstrated in this program are based on volume holographic Bragg-gratings in photorefractive crystals. The rotationally-tuned Bragg-grating has the potential of high throughput, high background rejection, and very high chromatic resolving power, making it a promising candidate for detecting the existence of a laser radar transmitter. It is expected that the volume holographic gratings should offer two orders of magnitude increase in the detection efficiency over conventional spectroscopic instruments of similar size. The innovations are directed toward improving the sensitivity, and reducing the system's mass, volume, alignment difficulties, and cost over existing solutions.

* information listed above is at the time of submission.

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