Two-octave dispersion flattening with five zero-dispersion wavelengths in the mid-IR
Name
105412E.pdf
Description
Published version
Size
515.35 KB
Format
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Checksum (MD5)
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Author(s)
Guo, Yuhao
Xu, Lijuan
Jafari, Zeinab
Agarwal, Anu
Kimerling, Lionel C
Li, Guifang
Michel, Jurgen
Zhang, Lin
Date Issued
February 2018
Journal
Photonic and Phononic Properties of Engineered Nanostructures VIII
Publisher
SPIE
Citation
2018. "Two-octave dispersion flattening with five zero-dispersion wavelengths in the mid-IR."
Version
Final published version
Abstract
© 2018 SPIE. Group-velocity dispersion (GVD) engineering is vital to many nonlinear optical phenomena and has been widely used for nonlinear optics. Aiming at different applications, one need to control and engineer the sign, value, slope of dispersion and the number of zero-dispersion wavelengths (ZDWs). In this work, we demonstrate generation of 5 ZDWs in a new type of bilayer waveguides. Outer layer of this waveguide can be formed by depositing without etching. Material combinations are Ge23Sb7S70 (n≈2.2) and Ge28Sb12Se60 (n≈2.6). In this waveguide, an extremely wideband-low and flat dispersion can be obtained from 2.6 to 15.5 μm (2.6 octaves).
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
MIT Materials Research Laboratory
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.
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DOI of Published Version
https://doi.org/10.1117/12.2291331
