A Homodyne Detector Integrated onto a Photonic Chip for Measuring Quantum States and Generating Random Numbers

Francesco Raffaelli; Giacomo Ferranti; Dylan Mahler; Philip Sibson; Jake Kennard; Alberto Santamato; Gary Sinclair; Damien Bonneau; Jonathan Matthews; Mark G. Thompson

doi:10.1088/2058-9565/aaa38f

A Homodyne Detector Integrated onto a Photonic Chip for Measuring Quantum States and Generating Random Numbers

Francesco Raffaelli
, Giacomo Ferranti
, Dylan Mahler
, Philip Sibson
, Jake Kennard
, Alberto Santamato
, Gary Sinclair
, Damien Bonneau
, Jonathan Matthews
, Mark G. Thompson

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

133 Citations (Scopus)

557 Downloads (Pure)

Abstract

Optical homodyne detection has found use as a characterization tool in a range of quantum; technologies. So far implementations have been limited to bulk optics. Here we present the optical; integration of a homodyne detector onto a silicon photonics chip. The resulting device operates; at high speed, up 150 MHz, it is compact and it operates with low noise, quantified with 11 dB; clearance between shot noise and electronic noise. We perform on-chip quantum tomography of; coherent states with the detector and show that it meets the requirements for characterising more; general quantum states of light. We also show that the detector is able to produce quantum random; numbers at a rate of 1.2 Gbps generation rate, by measuring the vacuum state of the electromagnetic; field-the produced random numbers pass all the statistical tests provided by the NIST statistical; test suite.

Original language	English
Article number	025003
Number of pages	9
Journal	Quantum Science and Technology
Volume	3
Issue number	2
DOIs	https://doi.org/10.1088/2058-9565/aaa38f
Publication status	Published - 7 Feb 2018

Research Groups and Themes

QETLabs
Bristol Quantum Information Institute
Photonics and Quantum

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10.1088/2058-9565/aaa38f

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Practical Photonic Quantum-Enhanced Sensors
Matthews, J. C. F. (Principal Investigator)
1/04/15 → 31/03/20
Project: Research
QComms: UK Quantum Technology Hub for Quantum Communication Technologies (via York)
Rarity, J. G. (Principal Investigator), Thompson, M. G. (Principal Investigator), Erven, C. (Co-Investigator), Laing, A. (Co-Investigator), Nejabati, R. (Co-Investigator), Simeonidou, D. (Co-Investigator), Lowndes, D. L. D. (Researcher), Kennard, J. E. (Researcher), Hugues Salas, E. (Researcher), Hart, A. S. (Researcher), Collins, R. L. (Researcher), Ntavou, F. (Researcher), Borghi, M. (Researcher), Joshi, S. K. (Researcher) & Aktas, D. V. C. (Researcher)
1/12/14 → 30/11/19
Project: Research, Parent
Quantum Optics for Integrated Photonic Technologies
Rarity, J. G. (Principal Investigator)
16/06/14 → 15/06/19
Project: Research

A Homodyne Detector Integrated onto a Photonic Chip for Measuring Quantum States and Generating Random Numbers
Raffaelli, F. (Creator), Ferranti, G. (Creator), Mahler, D. (Creator), Sibson, P. (Creator), Kennard, J. (Creator), Santamato, A. (Creator), Sinclair, G. (Creator), Bonneau, D. (Creator), Thompson, M. (Creator), Matthews, J. (Creator) & Matthews, J. (Data Manager), University of Bristol, 5 Jan 2018
DOI: 10.5523/bris.2zoorhel0xbsr2dbosecymaocl, http://data.bris.ac.uk/data/dataset/2zoorhel0xbsr2dbosecymaocl
Dataset

Cite this

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title = "A Homodyne Detector Integrated onto a Photonic Chip for Measuring Quantum States and Generating Random Numbers",

abstract = "Optical homodyne detection has found use as a characterization tool in a range of quantum; technologies. So far implementations have been limited to bulk optics. Here we present the optical; integration of a homodyne detector onto a silicon photonics chip. The resulting device operates; at high speed, up 150 MHz, it is compact and it operates with low noise, quantified with 11 dB; clearance between shot noise and electronic noise. We perform on-chip quantum tomography of; coherent states with the detector and show that it meets the requirements for characterising more; general quantum states of light. We also show that the detector is able to produce quantum random; numbers at a rate of 1.2 Gbps generation rate, by measuring the vacuum state of the electromagnetic; field-the produced random numbers pass all the statistical tests provided by the NIST statistical; test suite.",

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AU - Raffaelli, Francesco

AU - Ferranti, Giacomo

AU - Mahler, Dylan

AU - Sibson, Philip

AU - Kennard, Jake

AU - Santamato, Alberto

AU - Sinclair, Gary

AU - Bonneau, Damien

AU - Matthews, Jonathan

AU - Thompson, Mark G.

PY - 2018/2/7

Y1 - 2018/2/7

N2 - Optical homodyne detection has found use as a characterization tool in a range of quantum; technologies. So far implementations have been limited to bulk optics. Here we present the optical; integration of a homodyne detector onto a silicon photonics chip. The resulting device operates; at high speed, up 150 MHz, it is compact and it operates with low noise, quantified with 11 dB; clearance between shot noise and electronic noise. We perform on-chip quantum tomography of; coherent states with the detector and show that it meets the requirements for characterising more; general quantum states of light. We also show that the detector is able to produce quantum random; numbers at a rate of 1.2 Gbps generation rate, by measuring the vacuum state of the electromagnetic; field-the produced random numbers pass all the statistical tests provided by the NIST statistical; test suite.

AB - Optical homodyne detection has found use as a characterization tool in a range of quantum; technologies. So far implementations have been limited to bulk optics. Here we present the optical; integration of a homodyne detector onto a silicon photonics chip. The resulting device operates; at high speed, up 150 MHz, it is compact and it operates with low noise, quantified with 11 dB; clearance between shot noise and electronic noise. We perform on-chip quantum tomography of; coherent states with the detector and show that it meets the requirements for characterising more; general quantum states of light. We also show that the detector is able to produce quantum random; numbers at a rate of 1.2 Gbps generation rate, by measuring the vacuum state of the electromagnetic; field-the produced random numbers pass all the statistical tests provided by the NIST statistical; test suite.

U2 - 10.1088/2058-9565/aaa38f

DO - 10.1088/2058-9565/aaa38f

M3 - Article (Academic Journal)

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IS - 2

M1 - 025003

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A Homodyne Detector Integrated onto a Photonic Chip for Measuring Quantum States and Generating Random Numbers

Abstract

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Projects

Practical Photonic Quantum-Enhanced Sensors

QComms: UK Quantum Technology Hub for Quantum Communication Technologies (via York)

Quantum Optics for Integrated Photonic Technologies

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A Homodyne Detector Integrated onto a Photonic Chip for Measuring Quantum States and Generating Random Numbers

Cite this