Contribution to a conference proceedings/Journal Article

FZJ-2022-04065

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Modeling and design of an electrically pumped SiGeSn microring laser

Marzban, B. ; Seidel, L. ; Kiyek, V.FZJ* ; Liu, T.FZJ* ; Zöllner, M. ; Ikonic, Z. ; Capellini, G. ; Buca, D.FZJ* ; Schulze, J. ; Oehme, M. ; Witzens, J. ; Reed, G. T. (Editor) ; Knights, A. P. (Editor)

2022
Boca Raton, Fla.

This record in other databases:  

Please use a persistent id in citations: doi:10.1117/12.2609537

Abstract: 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.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)
2. Halbleiter-Nanoelektronik (PGI-9)

Research Program(s):

1. 5234 - Emerging NC Architectures (POF4-523) (POF4-523)

Appears in the scientific report 2022

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Database coverage:
National-Konsortium ; SCOPUS

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