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Demonstration of 3±0.12 dB power splitting over 145 nm optical bandwidth in a 31-µm long 3-dB rapid adiabatic coupler

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Abstract

We experimentally validate the rapid adiabatic coupling (RAC) concept and demonstrate 50±1.4% (3±0.12 dB) power splitting over a record 145 nm bandwidth from either port of a 31µm-long, 2×2 coupler, the widest ±1.4%-bandwidth by a factor of 4.

© 2020 The Author(s)

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