Work

Silicon-Germanium Light Sources for Commodity-Scale Quantum Key Distribution

Year: 2026

Type: conference-paper

Abstract: We investigate the opto-electronic characteristics of two different Silicon-Germanium light emitters native to silicon and demonstrate their monolithic co-integration with a polarization state encoder for quantum key distribution, generating secure encryption keys for an optical link budget of up to 10.8 dB.

Source: IEEE/LEOS Summer Topical Meetings

DOI: 10.1109/sum69529.2026.11660149

Authors: F. Honz, W. Boxleitner, M. Hentschel, V. Saggio, B. Schrenk

Institution: AIT Austrian Institute of Technology GmbH

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: hybrid

Funders: European Commission, Österreichische Forschungsförderungsgesellschaft

Awards: G3679788645, QuantERA II ERA-NET Cofund in Quantum Technologies, G754884474