Power-efficient generation of two-octave mid-IR frequency combs in a germanium microresonator
Name
[Nanophotonics] Power-efficient generation of two-octave mid-IR frequency combs in a germanium microresonator.pdf
Size
620.65 KB
Format
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Checksum (MD5)
0116cef873a51dccecad3232036d640a
Author(s)
Guo, Yuhao
Wang, Jing
Zheng, Zheng
Li, Guifang
Han, Zhaohong
Wada, Kazumi
Kimerling, Lionel C
Agarwal, Anuradha
Michel, Jurgen
Zhang, Lin
Date Issued
July 2018
Journal
Nanophotonics
Publisher
Walter de Gruyter
Citation
Guo, Yuhao, Jing Wang, Zhaohong Han, Kazumi Wada, Lionel C. Kimerling, Anuradha M. Agarwal, Jurgen Michel, Zheng Zheng, Guifang Li, and Lin Zhang. “Power-Efficient Generation of Two-Octave Mid-IR Frequency Combs in a Germanium Microresonator.” Nanophotonics 7, no. 8 (July 28, 2018): 1461–1467.
Version
Final published version
Abstract
Octave-spanning frequency comb generation in the deep mid-infrared (>5.5 μm) typically requires a high pump power, which is challenging because of the limited power of narrow linewidth lasers at long wavelengths. We propose twofold dispersion engineering for a Ge-on-Si microcavity to enable both dispersion flattening and dispersion hybridization over a wide band from 3.5 to 10 μm. A two-octave mode-locked Kerr frequency comb can be generated from 2.3 to 10.2 μm, with a pump power as low as 180 mW. It has been shown that dispersion flattening greatly enhances the spectral broadening of the generated comb, whereas dispersion hybridization improves its spectral flatness.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1515/nanoph-2017-0131
