Ultra-Efficient and Broadband Dual-Level Si3N4-on-SOI Grating Coupler

Wesley D. Sacher; Ying Huang; Liang Ding; Benjamin J. F. Taylor; Hasitha Jayatilleka; Guo-Qiang Lo; Joyce K. S. Poon

doi:10.1364/CLEO_SI.2014.STh3M.4

CLEO: 2014
OSA Technical Digest (online) (Optica Publishing Group, 2014),
paper STh3M.4
•https://doi.org/10.1364/CLEO_SI.2014.STh3M.4

Ultra-Efficient and Broadband Dual-Level Si₃N₄-on-SOI Grating Coupler

Wesley D. Sacher, Ying Huang, Liang Ding, Benjamin J. F. Taylor, Hasitha Jayatilleka, Guo-Qiang Lo, and Joyce K. S. Poon

CLEO: Science and Innovations 2014

San Jose, California United States
8–13 June 2014
ISBN: 978-1-55752-999-2

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Silicon Photonics (STh3M)

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W. D. Sacher, Y. Huang, L. Ding, B. J. F. Taylor, H. Jayatilleka, G. Lo, and J. K. S. Poon, "Ultra-Efficient and Broadband Dual-Level Si3N4-on-SOI Grating Coupler," in CLEO: 2014, OSA Technical Digest (online) (Optica Publishing Group, 2014), paper STh3M.4.

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Abstract

A grating coupler with aligned Si₃N₄ and Si grating teeth is proposed and demonstrated. The measured coupling efficiency is −1.3 dB (competitive with the best Si-only grating couplers), and the 1-dB bandwidth is a record 80 nm.

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