Quantum-secure networking with easy integration
Toshiba’s MU system reduces the CAPEX costs and complexity of deploying QKD by eliminating the need for
additional dark fibre. Using WDM, MU enables QKD signals to co-exist on fibre carrying multiple 10 Gb/s or 100
Gb/s classical data channels by multiplexing the O-band QKD signal with C-band data services.
All Toshiba QKD systems use an efficient implementation of BB84, the first and most rigorously studied QKD
protocol, proven secure through years of research. The BB84 protocol provides inherent protection from quantum
computers and any future advances in mathematics.
Incredibly Stable. Incredibly Reliable.
At Toshiba, we've pioneered active stabilisation technology that allows our QKD systems to distribute key
material continuously, in challenging operating conditions, without any user intervention. This avoids the
for recalibration of the system due to temperature-induced changes in the fibre lengths.
The reliability and stability of our QKD systems has been demonstrated in numerous deployments. In fact, at a
theoretical level, the probability of key failure using our technology is <
1 x 10-10 – equivalent to less than once every 30,000 years.
SEE HOW IT WORKS
Metro-scale networking of QKD and data services
The MU system offers unprecedented, metro-scale transmission distances of 80 km+ while transmitting QKD and
services on the same fibre, thanks to its exceptionally high optical loss budget (30 dB).
Our Multiplexed QKD Systems are easy to get up and running, with built-in add/drop filters for simple
integration into existing fibre networks. This means all user traffic can be passed through without any
additional multiplexing hardware. Once positioned in a standard 19" rack mount, the QKD hardware offers
automated start-up and real-time optimisation thanks to active stabilisation technology.
…and easy operation
A user-friendly interface, accessed through a web-browser, provides real-time and historical performance data.
Key management & delivery system
Toshiba’s REST-based Key Management System provides efficient and reliable key storage and delivery. It uses
ETSI industry standards, so it's compatible with leading encryptor vendors and other applications.
Class-leading key rates
Toshiba QKD systems all offer high secret bit rates - even over existing deployed fibre. MU is proven to
deliver 300 kb/s secure key rates at 10 dB channel loss, making it capable of supporting a diverse range of
customers and applications, and providing headroom for future demands.