Projects per year
Abstract
High visibility on-chip quantum interference among indistinguishable single-photons from multiples sources is a key prerequisite for integrated linear optical quantum computing. Resonant enhancement in micro-ring resonators naturally enables brighter, purer and more indistinguishable single-photon production without any tight spectral filtering. The indistinguishability of heralded single-photons from multiple micro-ring resonators has not been measured in any photonic platform. Here, we report on-chip indistinguishability measurements of heralded single-photons generated from independent micro-ring resonators by using an on-chip Mach-Zehnder interferometer and spectral demultiplexer. We measured the raw heralded two-photon interference fringe visibility as 72 ± 3%. This result agrees with our model, which includes device imperfections, spectral impurity and multi-pair emissions. We identify multi-pair emissions as the main factor limiting the nonclassical interference visibility, and show a route towards achieving near unity visibility in future experiments.
Original language | English |
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Pages (from-to) | 20379-20395 |
Number of pages | 17 |
Journal | Optics Express |
Volume | 26 |
Issue number | 16 |
Early online date | 26 Jul 2018 |
DOIs | |
Publication status | Published - 6 Aug 2018 |
Research Groups and Themes
- QETLabs
- Bristol Quantum Information Institute
- Photonics and Quantum
Keywords
- Quantum optics
- Integrated optics
- Nonlinear optics
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Dive into the research topics of 'On-chip quantum interference with heralded photons from two independent micro-ring resonator sources in silicon photonics'. Together they form a unique fingerprint.Projects
- 3 Finished
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Quantum Optics for Integrated Photonic Technologies
Rarity, J. G. (Principal Investigator)
16/06/14 → 15/06/19
Project: Research
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Programme Grant: Engineering Photonic Quantum Technologies.
Rarity, J. G. (Principal Investigator), O'Brien, J. L. (Principal Investigator), Thompson, M. G. (Co-Investigator), Erven, C. (Co-Investigator), Sahin, D. (Co-Investigator), Marshall, G. D. (Researcher), Barreto, J. (Co-Investigator), Jiang, P. (Collaborator), McCutcheon, W. D. (Researcher), Silverstone, J. W. (Researcher), Sinclair, G. F. (Researcher), Kling, L. (Engineer), Banerjee, A. (Researcher), Wang, J. (Researcher), Santagati, R. (Researcher), Borghi, M. (Researcher), Woodland, E. M. (Manager), Mawdsley, H. C. M. (Administrator) & Faruque, I. I. (Researcher)
16/06/14 → 15/06/19
Project: Research, Parent
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