Lithium Niobate Optical Modulator for Microwave Filtering Applications

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-09-C-0375
Agency Tracking Number: 08SB2-0682
Amount: $98,952.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: SB082-039
Solicitation Number: 2008.2
Small Business Information
Srico, Inc.
2724 Sawbury Blvd., Columbus, OH, 43235
DUNS: 609463302
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 S. Sriram
 President
 (614) 799-0664
 sri@srico.com
Business Contact
 Judith Sriram
Title: Vice President
Phone: (614) 799-0664
Email: judith@srico.com
Research Institution
N/A
Abstract
This Small Business Innovation Research Phase I project develops novel materials processing and device design that extract the maximum possible performance out of the lithium niobate electro-optic material. For microwave analog fiber optic links, such as for antenna remoting and RF filtering applications, the optical link performance requirements place stringent demands on the optical modulator component. An optical modulator is desired that is capable of handling several watts of optical power that has a low optical loss and a switching voltage less than 1 Volt and that operate efficiently with low RF electrode loss over a wide bandwidth of 2 to 20 GHz. In addition, an optical modulator that could offer the added capability to shape the frequency response would greatly benefit microwave filtering applications. SRICO proposes significant efficiency improvements to lithium niobate electro-optic modulators that are crucial to achieve practical applications of fiber optic links for microwave transmission and signal processing functions. We propose an architecture and novel optical modulator design for the realization of high gain fiber optic that concurrently provides programmable photonic RF filtering over the 2 to 20 GHz regime. Multiple optical modulators simultaneously fed by a single RF input are proposed to create advanced RF filtering functions.

* information listed above is at the time of submission.

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