Mid-infrared quantum optics in silicon

Lawrence M Rosenfeld; Dominic A Sulway; Gary F Sinclair; Vikas Anant; Mark G Thompson; John G Rarity; Joshua W  Silverstone

doi:10.1364/OE.386615

Mid-infrared quantum optics in silicon

Lawrence M Rosenfeld, Dominic A Sulway, Gary F Sinclair, Vikas Anant, Mark G Thompson, John G Rarity, Joshua W Silverstone^*

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

54 Citations (Scopus)

Abstract

Applied quantum optics stands to revolutionise many aspects of information technology, provided performance can be maintained when scaled up. Silicon quantum photonics satisfies the scaling requirements of miniaturisation and manufacturability, but at 1.55 μm it suffers from problematic linear and nonlinear loss. Here we show that, by translating silicon quantum photonics to the mid-infrared, a new quantum optics platform is created which can simultaneously maximise manufacturability and miniaturisation, while reducing loss. We demonstrate the necessary platform components: photon-pair generation, single-photon detection, and high- visibility quantum interference, all at wavelengths beyond 2 μm. Across various regimes, we observe a maximum net coincidence rate of 448 ± 12 Hz, a coincidence-to-accidental ratio of 25.7 ± 1.1, and, a net two-photon quantum interference visibility of 0.993 ± 0.017. Mid-infrared silicon quantum photonics will bring new quantum applications within reach.

Original language	English
Number of pages	11
Journal	Optics Express
DOIs	https://doi.org/10.1364/OE.386615
Publication status	Accepted/In press - 25 Sept 2020

Research Groups and Themes

Quantum Engineering Centre for Doctoral Training
QETLabs
Bristol Quantum Information Institute
Photonics and Quantum

Keywords

quantum
mid-infrared
Photon counting
photon sources

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10.1364/OE.386615

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QuPIC: Quantum Technology Capital: Quantum Photonic Integrated Circuits
Thompson, M. G. (Principal Investigator), O'Brien, J. L. (Co-Investigator), May, D. (Co-Investigator), Cryan, M. J. (Co-Investigator), Marshall, G. D. (Other ), Kling, L. (Other ), Murray, W. A. (Other ), Sahin, D. (Other ), Barreto, J. (Other ), Coimbatore Balram, K. (Other ) & Jiang, P. (Other )
1/04/16 → 1/04/19
Project: Research, Parent
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

Mid-infrared quantum optics in silicon: Light work with long waves
Rosenfeld, L. M. (Author), Coimbatore Balram, K. (Supervisor) & Silverstone, J. (Supervisor), 12 May 2020
Student thesis: Doctoral Thesis › Doctor of Philosophy (PhD)

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Mid-infrared quantum optics in silicon supporting data
Silverstone, J. (Creator), Rosenfeld, L. (Creator), Sulway, D. (Creator), Sinclair, G. (Creator), Anant, V. (Creator), Thompson, M. (Creator) & Rarity, J. (Creator), University of Bristol, 10 Aug 2020
DOI: 10.5523/bris.1ckssqmdmilj023w7f0gr36o06, http://data.bris.ac.uk/data/dataset/1ckssqmdmilj023w7f0gr36o06
Dataset

Cite this

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title = "Mid-infrared quantum optics in silicon",

abstract = "Applied quantum optics stands to revolutionise many aspects of information technology, provided performance can be maintained when scaled up. Silicon quantum photonics satisfies the scaling requirements of miniaturisation and manufacturability, but at 1.55 μm it suffers from problematic linear and nonlinear loss. Here we show that, by translating silicon quantum photonics to the mid-infrared, a new quantum optics platform is created which can simultaneously maximise manufacturability and miniaturisation, while reducing loss. We demonstrate the necessary platform components: photon-pair generation, single-photon detection, and high- visibility quantum interference, all at wavelengths beyond 2 μm. Across various regimes, we observe a maximum net coincidence rate of 448 ± 12 Hz, a coincidence-to-accidental ratio of 25.7 ± 1.1, and, a net two-photon quantum interference visibility of 0.993 ± 0.017. Mid-infrared silicon quantum photonics will bring new quantum applications within reach.",

keywords = "quantum, mid-infrared, Photon counting, photon sources",

author = "Rosenfeld, {Lawrence M} and Sulway, {Dominic A} and Sinclair, {Gary F} and Vikas Anant and Thompson, {Mark G} and Rarity, {John G} and Silverstone, {Joshua W}",

year = "2020",

month = sep,

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doi = "10.1364/OE.386615",

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journal = "Optics Express",

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AU - Rosenfeld, Lawrence M

AU - Sulway, Dominic A

AU - Sinclair, Gary F

AU - Anant, Vikas

AU - Thompson, Mark G

AU - Rarity, John G

AU - Silverstone, Joshua W

PY - 2020/9/25

Y1 - 2020/9/25

N2 - Applied quantum optics stands to revolutionise many aspects of information technology, provided performance can be maintained when scaled up. Silicon quantum photonics satisfies the scaling requirements of miniaturisation and manufacturability, but at 1.55 μm it suffers from problematic linear and nonlinear loss. Here we show that, by translating silicon quantum photonics to the mid-infrared, a new quantum optics platform is created which can simultaneously maximise manufacturability and miniaturisation, while reducing loss. We demonstrate the necessary platform components: photon-pair generation, single-photon detection, and high- visibility quantum interference, all at wavelengths beyond 2 μm. Across various regimes, we observe a maximum net coincidence rate of 448 ± 12 Hz, a coincidence-to-accidental ratio of 25.7 ± 1.1, and, a net two-photon quantum interference visibility of 0.993 ± 0.017. Mid-infrared silicon quantum photonics will bring new quantum applications within reach.

AB - Applied quantum optics stands to revolutionise many aspects of information technology, provided performance can be maintained when scaled up. Silicon quantum photonics satisfies the scaling requirements of miniaturisation and manufacturability, but at 1.55 μm it suffers from problematic linear and nonlinear loss. Here we show that, by translating silicon quantum photonics to the mid-infrared, a new quantum optics platform is created which can simultaneously maximise manufacturability and miniaturisation, while reducing loss. We demonstrate the necessary platform components: photon-pair generation, single-photon detection, and high- visibility quantum interference, all at wavelengths beyond 2 μm. Across various regimes, we observe a maximum net coincidence rate of 448 ± 12 Hz, a coincidence-to-accidental ratio of 25.7 ± 1.1, and, a net two-photon quantum interference visibility of 0.993 ± 0.017. Mid-infrared silicon quantum photonics will bring new quantum applications within reach.

KW - quantum

KW - mid-infrared

KW - Photon counting

KW - photon sources

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ER -

Mid-infrared quantum optics in silicon

Abstract

Research Groups and Themes

Keywords

Access to Document

Handle.net

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Projects

QuPIC: Quantum Technology Capital: Quantum Photonic Integrated Circuits

Programme Grant: Engineering Photonic Quantum Technologies.

Student theses

Mid-infrared quantum optics in silicon: Light work with long waves

Datasets

Mid-infrared quantum optics in silicon supporting data

Cite this