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Inverse Design of Ultra-broadband and Ultra-compact Polarization Beam Splitter via B-spline Surface

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Abstract

We optimized a polarization beam splitter via B-spline surface through inverse design. It has low insertion loss (<0.4 dB) and low crosstalk (<14 dB) over 420-nm bandwidth with 2.8×2.4 μm2 footprint.

© 2020 The Author(s)

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