Ultra-flat dispersion in an integrated waveguide with five and six zero-dispersion wavelengths for mid-infrared photonics
Name
prj-7-11-1279.pdf
Description
Published version
Size
1.53 MB
Format
Adobe PDF
Checksum (MD5)
0351f8f7b06a27e34756786aef242f79
Author(s)
Agarwal, Anuradha
Kimerling, Lionel C
Michel, Jurgen
Date Issued
October 2019
Journal
Photonics Research
Publisher
The Optical Society
Citation
Guo, Yuhao et al. “Ultra-flat dispersion in an integrated waveguide with five and six zero-dispersion wavelengths for mid-infrared photonics.” Photonics Research, 7, 11 (October 2019): 1279-1286 © 2019 The Author(s)
Version
Final published version
Abstract
We propose a new type of dispersion flattening technology, which can generate an ultra-flat group velocity dispersion profile with five and six zero-dispersion wavelengths (ZDWs). The dispersion value varies from −0.15 to 0.35 ps/(nm·km) from 4 to 8 μm, which to the best of our knowledge is the flattest one reported so far, and the dispersion flatness is improved by more than an order of magnitude. We explain the principle of producing six ZDWs. Mode distribution in this waveguide is made stable over a wide bandwidth. General guidelines to systematically control the dispersion value, sign, and slope are provided, and one can achieve the desired dispersion by properly adjusting the structural parameters. Fabrication tolerance of this waveguide is also examined.
MIT Department
Massachusetts Institute of Technology. Materials Research Laboratory
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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/10.1364/PRJ.7.001279
