Projects per year
Abstract
Random numbers are a fundamental resource in science and technology. Among the different approaches to generating them, random numbers created by exploiting the laws of quantum mechanics have proven to be reliable and can be produced at enough rates for their practical use. While these demonstrations have shown very good performance, most of the implementations using free-space and fibre optics suffer from limitations due to their size, which strongly limits their practical use. Here we report a quantum random number generator based on phase fluctuations from a diode laser, where the other required optical components are integrated on a mm-scale monolithic silicon-on-insulator chip. The post-processing reported in this experiment is performed via software. However, our physical device shows the potential of operation at generation rates in the Gbps regime. Considering the device’s size, its simple, robust and low power operation, and the rapid industrial uptake of silicon photonics, we foresee the widespread integration of the reported design in more complex systems.
Original language | English |
---|---|
Pages (from-to) | 19730-19741 |
Number of pages | 12 |
Journal | Optics Express |
Volume | 26 |
Issue number | 16 |
Early online date | 23 Jul 2018 |
DOIs | |
Publication status | Published - 6 Aug 2018 |
Keywords
- ntegrated optics devices
- Quantum communications
- Quantum information and processing
Fingerprint
Dive into the research topics of 'Generation of random numbers by measuring phase fluctuations from a laser diode with a silicon-on-insulator chip'. Together they form a unique fingerprint.Projects
- 1 Finished
-
QComms: UK Quantum Technology Hub for Quantum Communication Technologies (via York)
Rarity, J. G., Thompson, M. G., Erven, C., Laing, A., Nejabati, R., Simeonidou, D., Lowndes, D. L. D., Kennard, J. E., Hugues Salas, E., Hart, A. S., Collins, R. L., Ntavou, F., Borghi, M., Joshi, S. K. & Aktas, D. V. C.
1/12/14 → 30/11/19
Project: Research, Parent
Datasets
-
Generation of random numbers by measuring on a silicon-on-insulator chip phase fluctuations from a laser diode
Raffaelli, F. (Creator), Sibson, P. (Creator), Kennard, J. E. (Creator), Mahler, D. H. (Creator), Thompson, M. G. (Creator), Matthews, J. C. F. (Creator) & Matthews, J. C. F. (Data Manager), University of Bristol, 13 Jun 2018
DOI: 10.5523/bris.2nvzdjr7gy4ox2njh7a6tbwks6, http://data.bris.ac.uk/data/dataset/2nvzdjr7gy4ox2njh7a6tbwks6
Dataset