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Thin Film Lithium Niobate Microring Modulators for Analog Photonics

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX16CC57P
Agency Tracking Number: 150202
Amount: $124,998.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: T8.02
Solicitation Number: N/A
Solicitation Year: 2016
Award Year: 2016
Award Start Date (Proposal Award Date): 2016-06-10
Award End Date (Contract End Date): 2017-06-09
Small Business Information
4304 Scorpius St
Orlando, FL 32816-3281
United States
DUNS: 000000000
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Payam Rabiei
 (407) 823-2417
Business Contact
 Payam Rabiei
Title: Business Official
Phone: (407) 823-2417
Research Institution
 University of Central Florida
 Arlisia Potter
4000 Central Florida Blvd
Orlando, FL 32816-2700
United States

 (407) 882-2018
 Domestic Nonprofit Research Organization

Lithium niobate (LiNbO3) has been long regarded as the most attractive material for electro-optic modulation for high-performance optical communication systems of up to 100 GHz, as well as for its superior second-order optical non-linearity. The weakly confined LiNbO3 waveguides formed by diffusion or implantation of dopants do not lend themselves to high-level chip integration. One key novel technology proposed here, and supported by preliminary results, is developing submicron LiNbO3 films on silicon substrates using ion implantation, surface activation and wafer bonding. The technology allows to make optical waveguides with high index-contrast of ~2.2/1.5. To avoid direct etching of the hard LiNbO3 material, a loaded ridge waveguide formation is proposed. Based on these two technologies, LiNbO3 microring modulators with wide modulation bandwidth and compact size are proposed for analog photonics applications. The modulators can achieve good linearity, high power and wide modulation bandwidth simultaneously and have a very small size.

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