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Broadband and polarization insensitive 3 dB coupler based on tapered three-guide structure

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Abstract

We propose a broadband and polarization insensitive 3 dB coupler based on tapered three-guide structure on the silicon-on-insulator platform. The coupler has a wide bandwidth (~100nm) for both polarizations and has a large fabrication tolerance.

© 2015 Optical Society of America

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