TY  - JOUR
AU  - Seidel, Lukas
AU  - Liu, Teren
AU  - Concepción, Omar
AU  - Marzban, Bahareh
AU  - Kiyek, Vivien
AU  - Spirito, Davide
AU  - Schwarz, Daniel
AU  - Benkhelifa, Aimen
AU  - Schulze, Jörg
AU  - Ikonic, Zoran
AU  - Hartmann, Jean-Michel
AU  - Chelnokov, Alexei
AU  - Witzens, Jeremy
AU  - Capellini, Giovanni
AU  - Oehme, Michael
AU  - Grützmacher, Detlev
AU  - Buca, Dan
TI  - Continuous-wave electrically pumped multi-quantum-well laser based on group-IV semiconductors
JO  - Nature Communications
VL  - 15
IS  - 1
SN  - 2041-1723
CY  - [London]
PB  - Nature Publishing Group UK
M1  - FZJ-2024-06709
SP  - 10502
PY  - 2024
AB  - Over the last 30 years, group-IV semiconductors have been intensely investigated in the quest for a fundamental direct bandgap semiconductor that could yield the last missing piece of the Si Photonics toolbox: a continuous-wave Si-based laser. Along this path, it has been demonstrated that the electronic band structure of the GeSn/SiGeSn heterostructures can be tuned into a direct bandgap quantum structure providing optical gain for lasing. In this paper, we present a versatile electrically pumped, continuous-wave laser emitting at a near-infrared wavelength of 2.32 µm with a low threshold current of 4 mA. It is based on a 6-periods SiGeSn/GeSn multiple quantum-well heterostructure. Operation of the micro-disk laser at liquid nitrogen temperature is possible by changing to pulsed operation and reducing the heat load. The demonstration of a continuous-wave, electrically pumped, all-group-IV laser is a major breakthrough towards a complete group-IV photonics technology platform.
LB  - PUB:(DE-HGF)16
C6  - 39627224
UR  - <Go to ISI:>//WOS:001369778000020
DO  - DOI:10.1038/s41467-024-54873-z
UR  - https://juser.fz-juelich.de/record/1033871
ER  -