Dimensional Variation Tolerant Inverse Designed Broadband Mode Converter

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Md Mahadi Masnad, Guowu Zhang, Dan-Xia Xu, Yuri Grinberg, Odile Liboiron-Ladouceur

Published: 01 Jan 2022, Last Modified: 07 Oct 2024OFC 2022EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: We report on a low-loss (<1dB) TE1-TE3 mode converter, robust to ±10 nm etch-errors, operating over a wavelength range of 1.5-1.58 µm with modal crosstalk below −20dB. 20 GBaud PAM-4 signal transmission validates the conversion.