Thin Films of Lithium Niobate for High Efficiency Electro-Optic Modulators

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$749,889.00
Award Year:
2010
Program:
SBIR
Phase:
Phase II
Contract:
W31P4Q-10-C-0138
Award Id:
87365
Agency Tracking Number:
07SB2-0660
Solicitation Year:
2007
Solicitation Topic Code:
N07-190
Solicitation Number:
2007.2
Small Business Information
2724 SAWBURY BOULEVARD, COLUMBUS, OH, -
Hubzone Owned:
N
Minority Owned:
Y
Woman Owned:
N
Duns:
609463302
Principal Investigator:
Sri Sriram
President
(614) 799-0664
sri@srico.com
Business Contact:
Judith Sriram
Vice President
(614) 799-0664
judith@srico.com
Research Institute:
n/a
Abstract
This Small Business Innovation Research Phase II project exploits the emerging technologies of wafer bonding and ion slicing, referred to as"smart-cut"to substantially improve the performance capability of lithium niobate based electro-optic modulators. The greatest problem has been to achieve high bandwidths while still maintaining low drive switching voltage. Material electro-optic coefficient, optical loss, dielectric loss and permittivity all contribute to these parameters, with lithium niobate currently representing the best balance of materials properties. This Small Business Innovation Research Phase II project develops novel materials processing techniques that extract the maximum possible performance out of the lithium niobate electro-optic material. Specifically, the lithium niobate material is reduced to a thin bulk crystal film on top of a low electrical permittivity and low loss microwave friendly substrate. This geometry vastly reduces dielectric loss and effective microwave index for the traveling wave electrode, making velocity and impedance matched low drive voltage modulators possible. Simulation results indicate that a switching voltage less than 1 Volt and 20 GHz bandwidth would be possible with the new thin film geometry.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government