Abstract

This paper proposes a multi-mode Gaussian modulated continuous variable quantum key distribution (CV-QKD) scheme able to operate at high bandwidth despite using conventional noisy, coherent detectors. We demonstrate enhancement in shot-noise sensitivity as well as reduction in the electronic noise variance of the coherent receiver of the multi-mode CV-QKD system. A proof-of-concept simulation is presented using multiple modes; this demonstrates an increase in signal-to-noise ratio and secure key rate at various transmission distances with increasing signal modes.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
From quantum cloning to quantum key distribution with continuous variables: a review (Invited)

Nicolas J. Cerf and Philippe Grangier
J. Opt. Soc. Am. B 24(2) 324-334 (2007)

A 24 km fiber-based discretely signaled continuous variable quantum key distribution system

Quyen Dinh Xuan, Zheshen Zhang, and Paul L. Voss
Opt. Express 17(26) 24244-24249 (2009)

Security analysis of practical continuous-variable quantum key distribution systems under laser seeding attack

Yi Zheng, Peng Huang, Anqi Huang, Jinye Peng, and Guihua Zeng
Opt. Express 27(19) 27369-27384 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (14)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription