Pulse tunable SiGeSn/GeSn multi-quantum-well microdisk lasers

L. Seidel; T. Liu; O. Concepcion; D. Spirito; A. Benkhelifa; V. Kiyek; J. Schulze; B. Marzban; G. Capellini; J. Witzens; D. Grützmacher; D. Buca; M. Oehme

doi:10.1117/12.3028016

2 October 2024 Pulse tunable SiGeSn/GeSn multi-quantum-well microdisk lasers

L. Seidel, T. Liu, O. Concepcion, D. Spirito, A. Benkhelifa, V. Kiyek, J. Schulze, B. Marzban, G. Capellini, J. Witzens, D. Grützmacher, D. Buca, M. Oehme

Author Affiliations +

Proceedings Volume 13109, Metamaterials, Metadevices, and Metasystems 2024; 1310909 (2024) https://doi.org/10.1117/12.3028016
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

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.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

L. Seidel, T. Liu, O. Concepcion, D. Spirito, A. Benkhelifa, V. Kiyek, J. Schulze, B. Marzban, G. Capellini, J. Witzens, D. Grützmacher, D. Buca, and M. Oehme "Pulse tunable SiGeSn/GeSn multi-quantum-well microdisk lasers", Proc. SPIE 13109, Metamaterials, Metadevices, and Metasystems 2024, 1310909 (2 October 2024); https://doi.org/10.1117/12.3028016

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