Multiprotocol quantum key distribution receiver for free space

Alfonso Tello Castillo; Ugo Zanforlin; Gerald Buller; Ross Donaldson

doi:10.1117/12.2646456

11 January 2023 Multiprotocol quantum key distribution receiver for free space

Alfonso Tello Castillo, Ugo Zanforlin, Gerald Buller, Ross Donaldson

Proceedings Volume 12335, Quantum Technology: Driving Commercialisation of an Enabling Science III; 123350B (2023) https://doi.org/10.1117/12.2646456
Event: SPIE Photonex, 2022, Birmingham, United Kingdom

Abstract

Quantum Key Distribution (QKD), a technology for growing mathematically secure key encryption keys, is now on the verge of becoming widely commercially available. Due to lack of standardization, multiprotocol QKD receivers are particularly beneficial for satellite QKD, so that an optical ground station is not limited to a sub-set of satellites. Moreover, if both transmitter and receiver can operate with different protocols, they will be able to actively adapt to specific conditions by choosing the most suitable protocol. In this work, we present the design and performance of a multiprotocol reconfigurable free-space QKD receiver. The reconfigurability relies on polarization-based optical routing, which can also be used to optimize the performance of time-bin QKD protocols.

Conference Presentation

Citation Download Citation

Alfonso Tello Castillo, Ugo Zanforlin, Gerald Buller, and Ross Donaldson "Multiprotocol quantum key distribution receiver for free space", Proc. SPIE 12335, Quantum Technology: Driving Commercialisation of an Enabling Science III, 123350B (11 January 2023); https://doi.org/10.1117/12.2646456

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available