Reconfigurable Solid State Weighted Tapped Delay Line Filter

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-05-C-0243
Agency Tracking Number: 05ST1-0069
Amount: $99,000.00
Phase: Phase I
Program: STTR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: ST051-006
Solicitation Number: N/A
Small Business Information
NOMADICS, INC.
1024 S. Innovation Way, Stillwater, OK, 74074
DUNS: 879735579
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Brent Little
 Principal Investigator/Elec. Engr.
 (301) 604-7668
 blittle@nomadics.com
Business Contact
 Jim Luby
Title: Chief Operations Officer
Phone: (405) 372-9535
Email: jluby@nomadics.com
Research Institution
 GEORGIA TECH RESEARCH INSTITUTE
 Brent Wagner
 Electro-Optics, Environment &, Materials Laboratory
Atlanta, GA, 30332
 (404) 894-3468
 Nonprofit college or university
Abstract
Optical circuits provide many benefits for large time-bandwidth signal processing in microwave photonic applications. SeTapped delay lines using surface acoustic waves (SAWs) are in use today for carrier frequencies in the MHz to 100 MHz range, and thus their general theory and efficacy are well known. In order to be widely applicable, the tapped delay line filter must be robust enough to be deployed in fixed as well as mobile platforms. This calls for a solid state implementation of the components and a high degree of integration of all the optical elements. Further, it is desirable to have rapid real time reconfigurability and feedback for frequency scanning, filter shape adaptation, and noise figure optimization. Finally, an integrated solid state approach that uses conventional semiconductor practices will ensure cost effectiveness, scalability, and multiple sourcing. We propose through our Little Optics Division to implement reconfigurable optical tapped delay line filters using our proprietary high-index contrast planar lightwave circuit technology, achieving robust solid state filter solutions with femtosecond accuracy on the delay elements. Georgia Tech Research Institute (GTRI) will develop adaptive algorithms for the control of the filter and facilitate system testing of the filter units.

* information listed above is at the time of submission.

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