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Ultrafast and highly efficient optical modulators that are based on the Pockels effect are key components of today's optical communication networks. For the next generation of photonic links, silicon photonic technology is used to establish a new wave of densely integrated optic components. However, this new technology cannot exploit the advantages of using the Pockels effect for optical switching...
We demonstrate a technology to integrate optical nonlinear barium titanate thin films into silicon photonic structures. We designed and successfully fabricated passive structures, such as couplers and interferometers, and active, electrically non-volatilely tuneable ring resonators with a tunability of 4μW/nm.
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