Monolithically integrated stretchable photonics
Name
lsa2017138.pdf
Description
Published version
Size
1.02 MB
Format
Adobe PDF
Checksum (MD5)
5d11becb72e5b494f4f2678a84e4eca4
Author(s)
Li, Lan
Lin, Hongtao
Qiao, Shutao
Huang, Yi-Zhong
Li, Jun-Ying
Michon, Jérôme
Gu, Tian
Alosno-Ramos, Carlos
Vivien, Laurent
Yadav, Anupama
Date Issued
2018
Journal
Light: Science and Applications
Publisher
Springer Science and Business Media LLC
Version
Final published version
Abstract
© The Author(s) 2018. Mechanically stretchable photonics provides a new geometric degree of freedom for photonic system design and foresees applications ranging from artificial skins to soft wearable electronics. Here we describe the design and experimental realization of the first single-mode stretchable photonic devices. These devices, made of chalcogenide glass and epoxy polymer materials, are monolithically integrated on elastomer substrates. To impart mechanical stretching capability to devices built using these intrinsically brittle materials, our design strategy involves local substrate stiffening to minimize shape deformation of critical photonic components, and interconnecting optical waveguides assuming a meandering Euler spiral geometry to mitigate radiative optical loss. Devices fabricated following such design can sustain 41% nominal tensile strain and 3000 stretching cycles without measurable degradation in optical performance. In addition, we present a rigorous analytical model to quantitatively predict stress-optical coupling behavior in waveguide devices of arbitrary geometry without using a single fitting parameter.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/LSA.2017.138
