Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:1304.1490 · Nature Photonics

On-chip quantum interference between silicon photon-pair sources

Joshua W. Silverstone, Damien Bonneau, K. Ohira, Naoki Suzuki, H. Yoshida, Norio Iizuka, Mizunori Ezaki, Chandra M. Natarajan, Michael G. Tanner, Robert H. Hadfield, Val Zwiller, Graham D. Marshall, John Rarity, Jeremy L. O’Brien, Mark G. Thompson

Published Dec 13, 2013• 543 citations
arXivHTMLPDF
DOI
10.1038/nphoton.2013.339

Related papers

Interference of heralded single photons generated in silicon waveguide sources

Gary F. Sinclair

Quantum interference between identical photons lies at the heart of our plan to construct a silicon photonic quantum computer. Several ground-breaking experiments have demonstrated the on-chip interference between photons generated in spiral [1] and ring resonator [2] sources. However, these two-photon experiments have relied on detecting the simultaneous arrival of a pair of photons from either source. In order that such experiments can be scaled-up, we require the multiplexing of probabilistic photon pair sources into an on-demand single photon source [3]. A first step towards this is to demonstrate heralded single photons from different sources will retain the purity and indistinguishability required to interfere with high visibility [4]. In our work we examine photon pair production by spontaneous four-wave mixing in a silicon waveguide source and determine the factors that limit the heralded two-photon interference visibility. We present a novel approach to modelling this generation process using the joint- temporal amplitude and compare our results with experimental data. [1] On-chip quantum interference between silicon photon-pair sources, Nature Photonics 8, 104, (2014). [2] Qubit entanglement between ring-resonator photon-pair sources on a silicon chip, Nature Communications 6, 7948, (2015). [3] Active temporal and spatial multiplexing of photons, Optica 3, 127, (2016) [4] Indistinguishable photon pair generation using two independent silicon wire waveguides, New Journal of Physics 13, 065005, (2011).

•Jan 1, 2016•0 citations

Quantum interference using photon pairs generated in a silicon waveguide

Cheol Shin Won, Kyung Deuk Park, 김용수 +2 more

•Apr 26, 2019•0 citations

Quantum Photonics on a Chip

Anonymous

Physics•Sep 4, 2014•0 citations

The First Quantum Interference in the Mid-Infrared is on a Silicon Chip

Lawrence M. Rosenfeld, Dominic A. Sulway, Mark G. Thompson +2 more

Summary form only given. Quantum computing technology is at a crossroads. The technological route we choose must scale without limit. For quantum optics to play a part, optical loss, miniaturisation, and manufacturability must be simultaneously addressed. In quantum optics, a loss of a single photon is a loss of irreplaceable quantum information. Macroscale optics offers exceptionally low loss, and high performance, but has no hope to scale to thousands or millions of modes. Microscale optics, and silicon photonics in particular, offer exceptional miniaturisation and large-scale manufacturability, but pay a high price in loss [1]. We propose -and realise -a new platform for quantum optics: we retain the scale and manufacturability of silicon photonics, but extirpate its loss, both linear and nonlinear. We shift silicon quantum photonics to the short-wave infrared (SWYR), centred on 2.1 microns wavelength, on the optical end of the mid-infrared spectrum [2]. The minimum requirements for any quantum optical platform are: to source quantum-correlated light, and to demonstrate high-quality quantum interference. Here, we do both: we engineer an on-chip photon-pair source, and interfere the light from two such sources in a time-reversed Hong-Ou-Mandel (HOM) measurement [3]. In so doing, we show the first photon-pair source with all fields in the mid-infrared, and the first quantum interference between mid-infrared photons. We coherently pump both on-chip sources and thermally vary the on-chip phase, (j) to perform a time-reversed HOM interference measurement [3] with an accidental-subtracted visibility of V = 99.1 ± 0.9%.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 1, 2019•1 citation

Ultra-Wide Photon-Pair Source in the Mid-Infrared on a Silicon Chip

Lawrence M. Rosenfeld, Sabine Wollmann, Jonathan C. F. Matthews +1 more

Photon-pair sources are essential for complex and scalable quantum photonics circuits. Silicon photonics offers a scalable and low cost platform with a mature fabrication technology for realising this [1] . Recent demonstrations of photon-pair generation and quantum interference in the 2.1 µm band have paved the way towards mid-infrared integrated photon sources [2] , where many gases can be sensed with unique ‘fingerprint’ absorption lines. Producing long wavelength photons with large spectral detunings from the pump, utilising anomalous group-velocity dispersion and type-0 phase matching, is hard due to the highly dispersive nature of nanoscale silicon waveguides.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 21, 2021•0 citations

Chip-based quantum computing with photons

Alberto Politi

SPIE Newsroom•Jan 1, 2010•0 citations
Quantum interference between identical photons lies at the heart of our plan to construct a silicon photonic quantum computer. Several ground-breaking experiments have demonstrated the on-chip interference between photons generated in spiral [1] and ring resonator [2] sources. However, these two-photon experiments have relied on detecting the simultaneous arrival of a pair of photons from either source. In order that such experiments can be scaled-up, we require the multiplexing of probabilistic photon pair sources into an on-demand single photon source [3]. A first step towards this is to demonstrate heralded single photons from different sources will retain the purity and indistinguishability required to interfere with high visibility [4]. In our work we examine photon pair production by spontaneous four-wave mixing in a silicon waveguide source and determine the factors that limit the heralded two-photon interference visibility. We present a novel approach to modelling this generation process using the joint- temporal amplitude and compare our results with experimental data. [1] On-chip quantum interference between silicon photon-pair sources, Nature Photonics 8, 104, (2014). [2] Qubit entanglement between ring-resonator photon-pair sources on a silicon chip, Nature Communications 6, 7948, (2015). [3] Active temporal and spatial multiplexing of photons, Optica 3, 127, (2016) [4] Indistinguishable photon pair generation using two independent silicon wire waveguides, New Journal of Physics 13, 065005, (2011).
Summary form only given. Quantum computing technology is at a crossroads. The technological route we choose must scale without limit. For quantum optics to play a part, optical loss, miniaturisation, and manufacturability must be simultaneously addressed. In quantum optics, a loss of a single photon is a loss of irreplaceable quantum information. Macroscale optics offers exceptionally low loss, and high performance, but has no hope to scale to thousands or millions of modes. Microscale optics, and silicon photonics in particular, offer exceptional miniaturisation and large-scale manufacturability, but pay a high price in loss [1]. We propose -and realise -a new platform for quantum optics: we retain the scale and manufacturability of silicon photonics, but extirpate its loss, both linear and nonlinear. We shift silicon quantum photonics to the short-wave infrared (SWYR), centred on 2.1 microns wavelength, on the optical end of the mid-infrared spectrum [2]. The minimum requirements for any quantum optical platform are: to source quantum-correlated light, and to demonstrate high-quality quantum interference. Here, we do both: we engineer an on-chip photon-pair source, and interfere the light from two such sources in a time-reversed Hong-Ou-Mandel (HOM) measurement [3]. In so doing, we show the first photon-pair source with all fields in the mid-infrared, and the first quantum interference between mid-infrared photons. We coherently pump both on-chip sources and thermally vary the on-chip phase, (j) to perform a time-reversed HOM interference measurement [3] with an accidental-subtracted visibility of V = 99.1 ± 0.9%.
Photon-pair sources are essential for complex and scalable quantum photonics circuits. Silicon photonics offers a scalable and low cost platform with a mature fabrication technology for realising this [1] . Recent demonstrations of photon-pair generation and quantum interference in the 2.1 µm band have paved the way towards mid-infrared integrated photon sources [2] , where many gases can be sensed with unique ‘fingerprint’ absorption lines. Producing long wavelength photons with large spectral detunings from the pump, utilising anomalous group-velocity dispersion and type-0 phase matching, is hard due to the highly dispersive nature of nanoscale silicon waveguides.