On‑Chip Silicon Photonic Controllable 2 × 2 Four‑Mode Waveguide Switch

Authored by: Cao Dung Truong , Duy Nguyen Thi Hang , Hengky Chandrahalim , Minh Tuan Trinh

Handbook of Scholarly Publications from the Air Force Institute of Technology (AFIT), Volume 1, 2000–2020

Print publication date:  December  2022
Online publication date:  December  2022

Print ISBN: 9781032116679
eBook ISBN: 9781003220978
Adobe ISBN:


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Multimode optical switching is a key component of mode division multiplexing in modern high-speed optical signal processing. In this chapter, we introduce for the first time a novel 2 × 2 multimode switch design and demonstrate four controllable phase shifters in a proof-of-concept. The shifters operate using thermo-optic effects utilizing Ti heaters. The conceptual principle of the proposed multimode switch can be reconfigurable and scalable in multifunctional on‑chip mode‑division multiplexing optical interconnects.

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