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Wide Field of View Narrowband Holographic Grating Array for Improved Spectral Filtering in High Altitude Antisubmarine Warfare Systems

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-07-C-0127
Agency Tracking Number: N052-119-0005
Amount: $999,837.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N05-119
Solicitation Number: 2005.2
Solicitation Year: 2005
Award Year: 2007
Award Start Date (Proposal Award Date): 2007-06-05
Award End Date (Contract End Date): 2009-06-05
Small Business Information
1450 Edgmont Ave. UTP Bldg. 1, Ste 230
Chester, PA 19013
United States
DUNS: 101086825
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Mary Ludwig
 Director of Engineering
 (610) 499-7530
Business Contact
 Richard Billmers
Title: Vice President/CTO
Phone: (610) 499-7529
Research Institution

RL Associates, Inc. proposes to design, construct, and test a narrowband, wide field of view, volume holographic optical element (VHOE) array for use as a filter in high altitude antisubmarine warfare (ASW) Light Detection and Ranging (LIDAR) systems. High altitude LIDAR systems are currently limited by available spectral filter technology. These systems, which utilize an interrogation source of a visible wavelength, have poor signal to noise ratios when operated in the daylight, due to scattered returns from sunlight off the water’s surface. Narrowband spectral filters are used to improve daytime performance by blocking returned signals outside the spectral band of the interrogation source. However, many narrowband filters have the added disadvantage of restricting the system field of view. We propose to develop a new type of spectral filter composed of an array of volume holographic gratings which can be tailored to a broad acceptance angle while maintaining an extremely narrow spectral bandpass of 1 Å or less. We also propose to study volume holograms for use as beam splitters in multispectral systems.

* Information listed above is at the time of submission. *

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