Two-photon quantum interference in integrated multi-mode interference devices

Kostas Poulios; Daniel Fry; Alberto Politi; Nur Ismail; Kerstin Worhoff; Jeremy L. O'Brien; Mark G. Thompson

doi:10.1364/OE.21.023401

Two-photon quantum interference in integrated multi-mode interference devices

Kostas Poulios, Daniel Fry, Alberto Politi, Nur Ismail, Kerstin Worhoff, Jeremy L. O'Brien, Mark G. Thompson^*

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

Multi-mode interference (MMI) devices fabricated in silicon oxynitride (SiON) with a refractive index contrast of 2.4% provide a highly compact and stable platform for multi-photon non-classical interference. MMI devices can introduce which-path information for photons propagating in the multi-mode section which can result in degradation of this non-classical interference. We theoretically derive the visibility of quantum interference of two photons injected in a MMI device and predict near unity visibility for compact SiON devices. We complement the theoretical results by experimentally demonstrating visibilities of up to 97.7% in 2 x 2 MMI devices without the requirement of narrow-band photons. (C) 2013 Optical Society of America

Original language	English
Pages (from-to)	23401-23409
Number of pages	9
Journal	Optics Express
Volume	21
Issue number	20
DOIs	https://doi.org/10.1364/OE.21.023401
Publication status	Published - 7 Oct 2013

Research Groups and Themes

QETLabs

Keywords

COUPLERS
PHOTONS
COMPUTERS

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10.1364/OE.21.023401

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Fabricating a photonic quantum computer.
O'Brien, J. L. (Principal Investigator)
1/04/13 → 31/03/18
Project: Research
Integrated Orbital Angular Momentum Integrated Quantum Photonics.
Thompson, M. G. (Principal Investigator)
1/10/12 → 1/04/14
Project: Research
Beyond Qubits with Photons (BQP)
O'Brien, J. L. (Principal Investigator)
30/09/12 → 29/09/17
Project: Research

Cite this

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title = "Two-photon quantum interference in integrated multi-mode interference devices",

abstract = "Multi-mode interference (MMI) devices fabricated in silicon oxynitride (SiON) with a refractive index contrast of 2.4% provide a highly compact and stable platform for multi-photon non-classical interference. MMI devices can introduce which-path information for photons propagating in the multi-mode section which can result in degradation of this non-classical interference. We theoretically derive the visibility of quantum interference of two photons injected in a MMI device and predict near unity visibility for compact SiON devices. We complement the theoretical results by experimentally demonstrating visibilities of up to 97.7% in 2 x 2 MMI devices without the requirement of narrow-band photons. (C) 2013 Optical Society of America",

keywords = "COUPLERS, PHOTONS, COMPUTERS",

author = "Kostas Poulios and Daniel Fry and Alberto Politi and Nur Ismail and Kerstin Worhoff and O'Brien, {Jeremy L.} and Thompson, {Mark G.}",

year = "2013",

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doi = "10.1364/OE.21.023401",

language = "English",

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T1 - Two-photon quantum interference in integrated multi-mode interference devices

AU - Poulios, Kostas

AU - Fry, Daniel

AU - Politi, Alberto

AU - Ismail, Nur

AU - Worhoff, Kerstin

AU - O'Brien, Jeremy L.

AU - Thompson, Mark G.

PY - 2013/10/7

Y1 - 2013/10/7

N2 - Multi-mode interference (MMI) devices fabricated in silicon oxynitride (SiON) with a refractive index contrast of 2.4% provide a highly compact and stable platform for multi-photon non-classical interference. MMI devices can introduce which-path information for photons propagating in the multi-mode section which can result in degradation of this non-classical interference. We theoretically derive the visibility of quantum interference of two photons injected in a MMI device and predict near unity visibility for compact SiON devices. We complement the theoretical results by experimentally demonstrating visibilities of up to 97.7% in 2 x 2 MMI devices without the requirement of narrow-band photons. (C) 2013 Optical Society of America

AB - Multi-mode interference (MMI) devices fabricated in silicon oxynitride (SiON) with a refractive index contrast of 2.4% provide a highly compact and stable platform for multi-photon non-classical interference. MMI devices can introduce which-path information for photons propagating in the multi-mode section which can result in degradation of this non-classical interference. We theoretically derive the visibility of quantum interference of two photons injected in a MMI device and predict near unity visibility for compact SiON devices. We complement the theoretical results by experimentally demonstrating visibilities of up to 97.7% in 2 x 2 MMI devices without the requirement of narrow-band photons. (C) 2013 Optical Society of America

KW - COUPLERS

KW - PHOTONS

KW - COMPUTERS

U2 - 10.1364/OE.21.023401

DO - 10.1364/OE.21.023401

M3 - Article (Academic Journal)

C2 - 24104253

SN - 1094-4087

VL - 21

SP - 23401

EP - 23409

JO - Optics Express

JF - Optics Express

IS - 20

ER -

Two-photon quantum interference in integrated multi-mode interference devices

Abstract

Research Groups and Themes

Keywords

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Projects

Fabricating a photonic quantum computer.

Integrated Orbital Angular Momentum Integrated Quantum Photonics.

Beyond Qubits with Photons (BQP)

Cite this