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Proceedings Paper

Wide steering angle optical phased array based on silicon nano-membrane
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Paper Abstract

We present a new approach to wide angle optical beam steering based on nano-membrane-based phased array structures with unequally spaced elements. In our approach, the array elements are positioned in such way that grating lobes associated with different sub-arrays do not overlap. Therefore, we reduce the side-lobe-level of the array radiation pattern and at the same time we can avoid the optical coupling between adjacent waveguides by relaxing the half-wavelength spacing requirement for large angle beam steering. By optimizing the optical waveguide structure for the maximum full-width at half-maximum of the single radiator's radiation pattern we discuss the optimum performance achievable using the Unequally-spaced Waveguide Arrays.

Paper Details

Date Published: 12 February 2009
PDF: 7 pages
Proc. SPIE 7221, Photonics Packaging, Integration, and Interconnects IX, 72210T (12 February 2009); doi: 10.1117/12.809311
Show Author Affiliations
Amir Hosseini, The Univ. of Texas at Austin (United States)
David Kwong, The Univ. of Texas at Austin (United States)
Ray T. Chen, The Univ. of Texas at Austin (United States)

Published in SPIE Proceedings Vol. 7221:
Photonics Packaging, Integration, and Interconnects IX
Alexei L. Glebov; Ray T. Chen, Editor(s)

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