World's First Monolithic SiGe QKD Transmitter Chip

Florian Honz; Winfried Boxleitner; Mariana Ferreira-Ramos; Michael Hentschel; Philip Walther; Hannes Hübel; Bernhard Schrenk

doi:10.48550/arXiv.2504.08285

World's First Monolithic SiGe QKD Transmitter Chip

Florian Honz (Corresponding author)
, Winfried Boxleitner
, Mariana Ferreira-Ramos
, Michael Hentschel
, Philip Walther
, Hannes Hübel
, Bernhard Schrenk

Quantum Science

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

Abstract

We present a single-chip photonic QKD transmitter fabricated on a silicon platform. We achieve secure-key generation over 45.9km of field-deployed fiber and prove its operation along 32 WDM channels, by sourcing light without III-V materials.

Original language	English
Title of host publication	2025 Optical Fiber Communications Conference and Exhibition, OFC 2025 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	978-1-957171-43-2
DOIs	https://doi.org/10.48550/arXiv.2504.08285 https://doi.org/10.1364/OFC.2025.Th4D.7
Publication status	Published - 2025
Event	2025 Optical Fiber Communications Conference and Exhibition, OFC 2025 - San Francisco, United States Duration: 30 Mar 2025 → 3 Apr 2025

Conference

Conference	2025 Optical Fiber Communications Conference and Exhibition, OFC 2025
Country/Territory	United States
City	San Francisco
Period	30/03/25 → 3/04/25

Austrian Fields of Science 2012

103026 Quantum optics

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10.48550/arXiv.2504.08285Licence: Other
10.1364/OFC.2025.Th4D.7

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Honz, F., Boxleitner, W., Ferreira-Ramos, M., Hentschel, M., Walther, P., Hübel, H., & Schrenk, B. (2025). World's First Monolithic SiGe QKD Transmitter Chip. In 2025 Optical Fiber Communications Conference and Exhibition, OFC 2025 - Proceedings Article Th4D.7 Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.48550/arXiv.2504.08285, https://doi.org/10.1364/OFC.2025.Th4D.7

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title = "World's First Monolithic SiGe QKD Transmitter Chip",

abstract = "We present a single-chip photonic QKD transmitter fabricated on a silicon platform. We achieve secure-key generation over 45.9km of field-deployed fiber and prove its operation along 32 WDM channels, by sourcing light without III-V materials.",

author = "Florian Honz and Winfried Boxleitner and Mariana Ferreira-Ramos and Michael Hentschel and Philip Walther and Hannes H{\"u}bel and Bernhard Schrenk",

note = "Publisher Copyright: {\textcopyright} 2025 Optica.; 2025 Optical Fiber Communications Conference and Exhibition, OFC 2025 ; Conference date: 30-03-2025 Through 03-04-2025",

year = "2025",

doi = "10.48550/arXiv.2504.08285",

language = "English",

booktitle = "2025 Optical Fiber Communications Conference and Exhibition, OFC 2025 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

Honz, F, Boxleitner, W, Ferreira-Ramos, M, Hentschel, M, Walther, P, Hübel, H & Schrenk, B 2025, World's First Monolithic SiGe QKD Transmitter Chip. in 2025 Optical Fiber Communications Conference and Exhibition, OFC 2025 - Proceedings., Th4D.7, Institute of Electrical and Electronics Engineers Inc., 2025 Optical Fiber Communications Conference and Exhibition, OFC 2025, San Francisco, United States, 30/03/25. https://doi.org/10.48550/arXiv.2504.08285, https://doi.org/10.1364/OFC.2025.Th4D.7

World's First Monolithic SiGe QKD Transmitter Chip. / Honz, Florian (Corresponding author); Boxleitner, Winfried; Ferreira-Ramos, Mariana et al.
2025 Optical Fiber Communications Conference and Exhibition, OFC 2025 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2025. Th4D.7.

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

TY - GEN

T1 - World's First Monolithic SiGe QKD Transmitter Chip

AU - Honz, Florian

AU - Boxleitner, Winfried

AU - Ferreira-Ramos, Mariana

AU - Hentschel, Michael

AU - Walther, Philip

AU - Hübel, Hannes

AU - Schrenk, Bernhard

PY - 2025

Y1 - 2025

N2 - We present a single-chip photonic QKD transmitter fabricated on a silicon platform. We achieve secure-key generation over 45.9km of field-deployed fiber and prove its operation along 32 WDM channels, by sourcing light without III-V materials.

AB - We present a single-chip photonic QKD transmitter fabricated on a silicon platform. We achieve secure-key generation over 45.9km of field-deployed fiber and prove its operation along 32 WDM channels, by sourcing light without III-V materials.

UR - https://www.scopus.com/pages/publications/105011341096

U2 - 10.48550/arXiv.2504.08285

DO - 10.48550/arXiv.2504.08285

M3 - Contribution to proceedings

AN - SCOPUS:105011341096

BT - 2025 Optical Fiber Communications Conference and Exhibition, OFC 2025 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2025 Optical Fiber Communications Conference and Exhibition, OFC 2025

Y2 - 30 March 2025 through 3 April 2025

ER -

World's First Monolithic SiGe QKD Transmitter Chip

Abstract

Conference

Austrian Fields of Science 2012

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