Title :
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
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;
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
DOI :
10.1109/CLEOE-IQEC.2013.6801694
