Wavelength-Selective Coupling to Vertical Higher Order Modes in a 500-nm-Thick Silicon Multimode Waveguide Using Long- and Short-Period Gratings

This work explores thick silicon multimode waveguides (MMWs), focusing on vertical multimode operation. We present grating-assisted coupling structures to efficiently convert the fundamental mode to vertical higher-order modes in a 500-nm-thick silicon MMW. Both forward and backward coupling schemes...

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Bibliographic Details

Published in:	IEEE Access
Main Authors:	Hyeongjung Kim, Jungwoo Lee, Jihoon Seo, Minjin Kim, Min-Suk Kwon
Format:	Article
Language:	English
Published:	IEEE 2025-01-01
Subjects:	Integrated optics silicon photonics multimode waveguides Bragg gratings notch filters
Online Access:	https://ieeexplore.ieee.org/document/11151805/