Abstract

We establish a free-space quantum-optical link that leverages narrow (∼1 GHz) linewidth rubidium-based bandpass filters to drastically reduce solar background. To show its utility, we demonstrate the BB84 quantum key distribution protocol under daytime conditions.

© 2019 The Author(s)

PDF Article

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