Pulse tunable SiGeSn/GeSn multi-quantum-well microdisk lasers
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Author / Producer
Date
2024
Publication Type
Conference Paper
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yes
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Abstract
This paper reports on SiGeSn/GeSn multi-quantum-well microdisk lasers. The fabrication of the devices includes a selective under-etching step, which enhances the guiding of the whispering gallery modes inside the cavity. Lasing occurs under different electrical pumping conditions with a very low threshold current and for long, quasi-continuous wave pulses compared to previously reported GeSn-based microdisk lasers. Furthermore, the lasing threshold current is reduced by a factor of ten compared to similar double-heterostructure devices.
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Publication status
published
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Book title
Metamaterials, Metadevices, and Metasystems 2024
Journal / series
Volume
13109
Pages / Article No.
1310909
Publisher
SPIE
Event
Nanoscience + Engineering 2024
Edition / version
Methods
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Date collected
Date created
Subject
SiGeSn; GeSn; Multi-Quantum-Well; Laser; Microdisk