New design of electrically pumped GeSnOI laser integrated on a Si-photonics platform

Maria Alejandra Mendez; Maksym Gromovyi; Omar Concepción; Dan Buca; Moustafa El-Kurdi

doi:10.1117/12.3029453

6 June 2024 New design of electrically pumped GeSnOI laser integrated on a Si-photonics platform

Maria Alejandra Mendez, Maksym Gromovyi, Omar Concepción, Dan Buca, Moustafa El-Kurdi

Proceedings Volume PC13002, Semiconductor Lasers and Laser Dynamics XI; PC130020K (2024) https://doi.org/10.1117/12.3029453
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Conference Poster

Abstract

Advancements in semiconductor materials, particularly within Group IV, are crucial to meet the demand for efficient and adaptable laser sources. Germanium-tin (GeSn) alloys have emerged as promising candidates, facilitating full monolithic integration into silicon photonics. Progress in optically pumped GeSn lasers is remarkable, but electrically injected ones face challenges due to low index contrast to effectively confine the optical mode. We propose an electrically pumped laser design based on GeSnOI (GeSn On Insulator) scheme. Modal analysis was performed at 2500 nm wavelength using finite element method, optimizing electromagnetic wave confinement, and mitigating direct electrical contact deposition on the active zone. Simulation results indicated that the most effective fabrication approach involves bonding with another silicon substrate using SiN dielectric layer as cladding, thus taking advantage of high optical index contrast. This advancement heralds the potential for room temperature operation of electrically pumped lasers.

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

Citation Download Citation

Maria Alejandra Mendez, Maksym Gromovyi, Omar Concepción, Dan Buca, and Moustafa El-Kurdi "New design of electrically pumped GeSnOI laser integrated on a Si-photonics platform", Proc. SPIE PC13002, Semiconductor Lasers and Laser Dynamics XI, PC130020K (6 June 2024); https://doi.org/10.1117/12.3029453

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