Share Email Print
cover

Proceedings Paper

Integrated quantum key distribution sender unit for daily-life implementations
Author(s): Gwenaelle Mélen; Tobias Vogl; Markus Rau; Giacomo Corrielli; Andrea Crespi; Roberto Osellame; Harald Weinfurter
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Unlike currently implemented encryption schemes, Quantum Key Distribution provides a secure way of generating and distributing a key among two parties. Although a multitude of research platforms has been developed, the integration of QKD units within classical communication systems remains a tremendous challenge. The recently achieved maturity of integrated photonic technologies could be exploited to create miniature QKD add-ons that could extend the primary function of various existing systems such as mobile devices or optical stations. In this work we report on an integrated optics module enabling secure short-distance communication for, e.g., quantum access schemes. Using BB84-like protocols, Alice's mobile low-cost device can exchange secure key and information everywhere within a trusted node network. The new optics platform (35×20×8mm) compatible with current smartphone's technology generates NIR faint polarised laser pulses with 100MHz repetition rate. Fully automated beam tracking and live basis-alignment on Bob's side ensure user-friendly operation with a quantum link efficiency as high as 50% stable over a few seconds.

Paper Details

Date Published: 15 March 2016
PDF: 6 pages
Proc. SPIE 9762, Advances in Photonics of Quantum Computing, Memory, and Communication IX, 97620A (15 March 2016); doi: 10.1117/12.2208643
Show Author Affiliations
Gwenaelle Mélen, Ludwig-Maximilians-Univ. München (Germany)
Tobias Vogl, Ludwig-Maximilians-Univ. München (Germany)
Markus Rau, Ludwig-Maximilians-Univ. München (Germany)
Giacomo Corrielli, CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Politecnico di Milano (Italy)
Andrea Crespi, CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Politecnico di Milano (Italy)
Roberto Osellame, CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Politecnico di Milano (Italy)
Harald Weinfurter, Ludwig-Maximilians-Univ. München (Germany)
Max-Planck-Institut für Quantenoptik (Germany)


Published in SPIE Proceedings Vol. 9762:
Advances in Photonics of Quantum Computing, Memory, and Communication IX
Zameer Ul Hasan; Philip R. Hemmer; Hwang Lee; Alan L. Migdall, Editor(s)

© SPIE. Terms of Use
Back to Top