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|Title:||High-Speed Optical Mode Switch in Lithium Niobate on Insulator|
|Citation:||ACS Photonics, 2023; 10(7):2257-2263|
|Publisher:||American Chemical Society (ACS)|
|Yongheng Jiang, Xu Han, Yiyang Li, Huifu Xiao, Haijin Huang, Pu Zhang, Aditya Dubey, Mingrui Yuan, Thach Giang Nguyen, Andreas Boes, Yingtao Li, Guanghui Ren, Jiuzhi Xue, Qinfen Hao, Yikai Su, Arnan Mitchell, and Yonghui Tian|
|Abstract:||Mode-division-multiplexing technology is highly attractive to increase the capacity of optical interconnects. Various multimode operations have been investigated, among which optical mode switches provide one of the most important functions in mode-division-multiplexing systems. However, current optical mode switches have a non-negligible switching time, which can lead to an undesired cumulative delay in the optical network. In this contribution, we propose and experimentally demonstrate an optical mode switch using a three-waveguide-coupling structure in the lithium niobate on insulator platform. The demonstrated optical mode switch has an insertion loss of 4.3 dB, an extinction ratio of 17.1 dB, and a switching time of below 28 ps. This work paves the way for future chip-scale highspeed mode-division-multiplexing systems.|
|Keywords:||Optical mode switch; Lithium niobate on insulator (LNOI); Silicon nitride; Mode-division-multiplexing (MDM)|
|Description:||Published 19 July 2023|
|Rights:||© 2023 American Chemical Society|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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