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Conferences > OFC > 2018 > Tu2A > Tu2A.5

Optimization Design of Efficient Broadband Bi-Layer Grating Couplers for a Silicon Nitride-on-Silicon Foundry Platform

Jason C.C. Mak, Quentin Wilmart, Ségolène Olivier, Sylvie Menezo, and Joyce K. S. Poon

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Abstract

We propose and validate an optimization-based design procedure for bi-layer grating couplers in a silicon nitride-on-silicon photonic platform. Peak fiber-to-chip coupling efficiency of -2.1dB and a 1-dB bandwidth of 72nm were achieved in the O-band.

© 2018 The Author(s)

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