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Asymmetric-waveguide-assisted 3-dB Broadband Directional Coupler

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Abstract

We demonstrate 3-dB broadband directional couplers that use asymmetric-waveguide-based phase compensation. Average coupling ratios of 46.57% and 48.28% were obtained from 1500 nm to 1600 nm for transverse electric and transverse magnetic modes, respectively.

© 2015 Optical Society of America

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