A performance leap for Graphene modulators in next generation datacom and telecom

In a study published in the journal Nature Communications, researchers from ICFO - The Institute of Photonic Sciences have reported on a novel EA modulator capable of showing a 3-fold increase in static and dynamic modulation efficiency while maintaining the high-speed, a value that surpasses those for previously reported graphene EA modulators.

To achieve this, the team of researchers developed a high-quality graphene-based electro-absorption modulator by combining high-quality graphene and a high-k dielectric, also used in microelectronics. The high quality of the graphene was achieved by integrating it with the 2d-material dielectric hexagonal boron nitride (hBN).

Credit: ICFO Credit: ICFO/D. Alcaraz

Research paper: 2D-3D integration of hexagonal boron nitride and a high-κ dielectric for ultrafast graphene-based electro-absorption modulators https://www.nature.com/articles/s41467-021-20926-w

News Source: https://www.eurekalert.org/pub_releases/2021-02/iiop-apl021621.php

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