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Conferences > IPR > 1990 > MI > MI3

Fabrication and enhanced performance of reduced-confinement GaAlAs tapered-waveguide antennas

D. E. Bossi, W. D. Goodhue, L. M. Johnson, M. C. Finn, K. Rauschenbach, and R. H. Rediker

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Abstract

Tapered-waveguide antennas reduce the far-field divergence of beams emitted from integrated-optical waveguides. Previously, we presented preliminary results on reduced-confinement GaAlAs antennas,1 which, unlike horn antennas, are compatible with two-dimensional antenna development. We now report a new fabrication technique that permits improved and reproducible performance of these antennas, and we describe a numerical simulation that allows us to verify and accurately predict performance limitations of reduced-confinement antennas.

© 1990 Optical Society of America

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