Total for the last 12 months
number of access : ?
number of downloads : ?
ID 118403
Author
Fujikata, Junichi Photonics Electronics Technology Research Association|Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Noguchi, Masataka Photonics Electronics Technology Research Association
Katamawari, Riku Toyohashi University of Technology
Inaba, Kyosuke Toyohashi University of Technology
Ono, Hideki Photonics Electronics Technology Research Association|Oki Electric Industry Co., Ltd.
Shimura, Daisuke Photonics Electronics Technology Research Association|Oki Electric Industry Co., Ltd.
Onawa, Yosuke Photonics Electronics Technology Research Association|Oki Electric Industry Co., Ltd.
Yaegashi, Hiroki Photonics Electronics Technology Research Association|Oki Electric Industry Co., Ltd.
Ishikawa, Yasuhiko Toyohashi University of Technology
Content Type
Journal Article
Description
We studied a high-speed Ge/Si electro-absorption optical modulator (EAM) evanescently coupled with a Si waveguide of a lateral p–n junction for a high-bandwidth optical interconnect over a wide range of temperatures from 25 °C to 85 °C. We demonstrated 56 Gbps high-speed operation at temperatures up to 85 °C. From the photoluminescence spectra, we confirmed that the bandgap energy dependence on temperature is relatively small, which is consistent with the shift in the operation wavelengths with increasing temperature for a Ge/Si EAM. We also demonstrated that the same device operates as a high-speed and high-efficiency Ge photodetector with the Franz-Keldysh (F-K) and avalanche-multiplication effects. These results demonstrate that the Ge/Si stacked structure is promising for both high-performance optical modulators and photodetectors integrated on Si platforms.
Journal Title
Optics Express
ISSN
10944087
Publisher
Optica Publishing Group
Volume
31
Issue
6
Start Page
10732
End Page
10743
Published Date
2023-03-09
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Science and Technology