4
collaborators
2021–2021
years active
Contributions
QIP QCrypt TQC talk poster presenter award · △program ◇steering ○organizing · filled = chair
1 Poster
| Title | Conference | Co-authors |
|---|---|---|
| Resilient Chip‐Scale QKD with Integrated Hacking Prevention | QCRYPT 2021 | Friederike Johlinger, Henry Semenenko, Djeylan Aktas, John Rarity |
Recently, the first integrated Measurement Device Independent Quantum Key Distribution (MDI QKD) system has been implemented here in Bristol (Semenenko, 2020). To build on this result and work towards improved security and key rates, a new indium phosphide (InP) transmitter chip has been designed for a second-generation MDI QKD implementation. The new chip contains two laser sources, including a distributed feedback laser to allow for faster pulsing and high-speed phase modulators with a bandwidth of up to 30 GHz. With the new lasers and phase modulators a higher pulse rate will be achieved, leading to better key rates. Additionally, an on-chip photodiode can be used to monitor incoming light. This makes the chip much more resilient against hacking attacks, such as a Trojan Horse or Laser Damage Attacks. Since MDI QKD is intrinsically protected against detector attacks, this means that this new MDI QKD system will show great security overall. |
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Collaborators
| Co-author | Joint talks |
|---|---|
| Djeylan Aktas | 1 |
| Friederike Johlinger | 1 |
| Henry Semenenko | 1 |
| John Rarity | 1 |