High-performance graphene-integrated thermo-optic switch: design and experimental validation [Invited]
Name
ome-10-2-387.pdf
Description
Published version
Size
2.58 MB
Format
Adobe PDF
Checksum (MD5)
898b0b17d14548cb22eb7424c0c21fc0
Author(s)
Li, Junying
Huang, Yizhong
Song, Yi
Li, Lan
Zheng, Hanyu
Wang, Haozhe
Gu, Tian
Richardson, Kathleen
Kong, Jing
Hu, Juejun
Date Issued
January 2020
Journal
Optical Materials Express
Publisher
Optical Society of America (OSA)
Citation
Li, Junying et al. "High-performance graphene-integrated thermo-optic switch: design and experimental validation [Invited]." 10, 2 (January 2020): 387-396 © 2020 Optical Society of America
Version
Final published version
Abstract
The extraordinary optical properties of single-layer graphene have spurred the development of a variety of photonic components. We have previously demonstrated a scalable and versatile platform to facilitate the integration of graphene and other 2-D materials with chalcogenide glass-based planar photonics. In this paper, we detail the design criteria and optimization guidelines towards high-performance graphene-integrated thermo-optic (TO) switches based on the chalcogenide glass-on-graphene platform. Notably, absorption loss of graphene can be reduced to < 20 dB/cm when it is sandwiched inside photonic structures capitalizing on the anisotropic absorption property of graphene. We quantify energy efficiency of the TO switch, showing that the choice of cladding materials plays a critical role in improving device efficiency. Furthermore, we report a record TO switching efficiency of 10 nm/mW via judicious engineering of the overlap between optical mode and thermal profile.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1364/ome.382856
