Study of gain for SiGeSn/GeSn/SiGeSn multiple quantum well lasers

Authors :: Greg Sun
Wei Du
Solomon Ojo
Shui-Qing Yu
Mansour Mortazavi
Yuanhao Miao
Jifeng Liu
Richard A. Soref
Baohua Li
Grey Abernathy
Yiyin Zhou
Yong-Hang Zhang
Source :: Scopus-Elsevier
Publication Year :: 2020
Publisher :: Optica Publishing Group, 2020.
Abstract: We studied the design of SiGeSn/GeSn/SiGeSn multiple-quantum-well active regions and the gain threshold needed to achieve lasing. The enhancement of optical confinement factor was demonstrated by introducing a SiGeSn cap.