TY  - JOUR
AU  - Marzban, Bahareh
AU  - Seidel, Lukas
AU  - Kiyek, Vivien
AU  - Liu, Teren
AU  - Zöllner, Marvin
AU  - Ikonic, Zoran
AU  - Capellini, Giovanni
AU  - Buca, Dan
AU  - Schulze, Jörg
AU  - Oehme, Michael
AU  - Witzens, Jeremy
A3  - Reed, Graham T.
A3  - Knights, Andrew P.
TI  - Modeling and design of an electrically pumped SiGeSn microring laser
JO  - SPIE reviews
VL  - 12006
SN  - 1946-3251
CY  - Boca Raton, Fla.
M1  - FZJ-2022-04065
SP  - 9
PY  - 2022
AB  - We present a suspended SiGeSn microring laser design that enables strain relaxation of the material layer stack, electrical pumping and adequate heat sinking. Using both strain and composition as two degrees of freedom to engineer the band structure, a direct bandgap is obtained in the gain material of a double heterostructure layer stack, and the L- to Γ-valley energy difference increased to 78 meV, by 66% compared to a non-underetched structure. The temperature dependent current threshold is modeled for the designed device and determined to be 18 kA/cm2 at 50 K. The fabrication process is outlined and first experimental electroluminescence results indicating the effectiveness of our approach are reported. At the time this proceedings paper is being submitted, electrically pumped lasing has also been achieved with a similar structure, with results that will be reported in a future publication.
T2  - Silicon Photonics XVII
CY  - 22 Jan 2022 - 28 Feb 2022, San Francisco (United States)
Y2  - 22 Jan 2022 - 28 Feb 2022
M2  - San Francisco, United States
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000831668100019
DO  - DOI:10.1117/12.2609537
UR  - https://juser.fz-juelich.de/record/910693
ER  -