Free space quantum key distribution over 500 meters using electrically driven quantum dot single photon sources

Author

Rau, Markus ; Heindel, T. ; Unsleber, Sebastian ; Schneider, C. ; Frick, Sharon ; Vest, Gwenaelle ; Nauerth, Sebastian ; Lermer, M. ; Kamp, M. ; Reitzenstein, S. ; Forchel, A. ; Hofling, S. ; Weinfurter, Harald

Author_Institution

Fak. fur Phys., Ludwig Maximilians Univ. Munchen, München, Germany

fYear

2013

fDate

12-16 May 2013

Firstpage

1

Lastpage

1

Abstract

Summary form only given. The field of quantum key distribution has made rapid advances in the past years. Networks of QKD links were implemented, commercial QKD systems are available and research systems have reached GHz repetition rates and distances beyond 200 km. Usually decoy protocols with attenuated laser light pulses are used, where the asymptotic key rate of a QKD system is proportional to the fraction of single photon pulses sent [1]. Single photon sources (SPSs) intrinsically have a higher single photon fraction and thus reach higher key rates.

Keywords

light scattering; light sources; optical links; quantum communication; quantum dots; quantum optics; QKD link networks; attenuated laser light pulses; distance 500 m; electrically driven quantum dot single photon sources; free space quantum key distribution; gigahertz repetition rates; Laser applications; Materials; Photonics; Physics; Protocols; Quantum dot lasers; Quantum dots;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference

Conference_Location

Munich

Print_ISBN

978-1-4799-0593-5

Type

conf

DOI

10.1109/CLEOE-IQEC.2013.6801694

Filename

6801694