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Proceedings Paper

Fabrication and characterization of a hybrid SOI 1×4 silicon-slot optical modulator array incorporating EO polymers for optical phased-array antenna applications
Author(s): Richard S. Kim; Attila Szep; Nicholas G. Usechak; Antao Chen; Haishan Sun; Shouyuan Shi; Don Abeysinghe; Young-Hwan You; Larry R. Dalton
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Paper Abstract

Optical phased arrays are promising candidates for both RF signal processing and optical beam forming and steering. These platforms not only enable accurate electrically controlled beam steering at high frequencies but also have the potential to significantly improve the performance of future free-space optical communications systems. In this work we exploit recent advancements in both nano-scale hybrid silicon-slot waveguides and electro-optic (EO) polymers to demonstrate an integrated optical phased-array antenna. Specifically, we create a hybrid integrated "photonic circuit" that connects an array of optical phase modulators, fed by a common optical signal and a 1x4 splitter, to a compact optical waveguide diffraction array for optical beam steering applications. The fundamental characteristics of the resulting integrated optical beam former, including the optical insertion loss, driving voltage, and phase control from the waveguide aperture are summarized in this letter.

Paper Details

Date Published: 28 February 2012
PDF: 9 pages
Proc. SPIE 8259, RF and Millimeter-Wave Photonics II, 82590B (28 February 2012); doi: 10.1117/12.913652
Show Author Affiliations
Richard S. Kim, Air Force Research Lab. (United States)
Attila Szep, Air Force Research Lab. (United States)
Nicholas G. Usechak, Air Force Research Lab. (United States)
Antao Chen, Univ. of Washington (United States)
Haishan Sun, Univ. of Washington (United States)
Shouyuan Shi, Univ. of Delaware (United States)
Don Abeysinghe, Univ. of Cincinnati (United States)
Young-Hwan You, Indiana Univ. East (United States)
Larry R. Dalton, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 8259:
RF and Millimeter-Wave Photonics II
Robert L. Nelson; Dennis W. Prather; Chris Schuetz; Garrett J. Schneider, Editor(s)

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