Fabrication and characterization of a hybrid SOI 1x4 silicon-slot optical modulator array incorporating EO polymers for optical phased-array antenna applications

Richard S. Kim; Attila Szep; Nicholas G. Usechak; Antao Chen; Haishan Sun; Shouyuan Shi; Don Abeysinghe; Young-Hwan You; Larry R. Dalton

doi:10.1117/12.913652

28 February 2012 Fabrication and characterization of a hybrid SOI 1×4 silicon-slot optical modulator array incorporating EO polymers for optical phased-array antenna applications

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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Proceedings Volume 8259, RF and Millimeter-Wave Photonics II; 82590B (2012) https://doi.org/10.1117/12.913652
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

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Richard S. Kim, Attila Szep, Nicholas G. Usechak, Antao Chen, Haishan Sun, Shouyuan Shi, Don Abeysinghe, Young-Hwan You, and Larry R. Dalton "Fabrication and characterization of a hybrid SOI 1×4 silicon-slot optical modulator array incorporating EO polymers for optical phased-array antenna applications", Proc. SPIE 8259, RF and Millimeter-Wave Photonics II, 82590B (28 February 2012); https://doi.org/10.1117/12.913652

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KEYWORDS

Phased array optics

Waveguides

Modulators

Silicon

Integrated optics

Polymers

Near field optics

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