INQNET seminars

Quantum Key Distribution using Weak Coherent Laser Sources: Recent Progress and the Route to Practical QKD Systems

by Robert Woodward (Cambridge Research Laboratory (UK) of Toshiba Europe)


With the emergence of quantum computers, which have the potential to break classical cryptographic approaches, it has never been more important to develop new technologies for ensuring secure global communications. Quantum key distribution (QKD) provides such a solution, where security can be proven directly from information-theoretic principles and the laws of quantum physics. In this talk I will review recent advances in QKD technology, highlighting how attenuated, modulated laser sources can be used to implement novel protocols such as Measurement-Device-Independent QKD (MDI-QKD). In addition to summarizing recent research results, I will highlight Toshiba’s work in QKD commercialisation and discuss recent achievements in deploying QKD into real-world fibre communication networks.

Topic: INQNET seminar 
Time: August 9, 2021 09:30 AM Pacific Time (US and Canada)

For zoom access contact organizers at nlauk(at)

Organized by

Nikolai Lauk