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

Two-photon quantum interference in integrated multi-mode interference devices
Two-photon quantum interference in integrated multi-mode interference devices
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 2x2 MMI devices without the requirement of narrow-band photons.
1094-4087
23401-23409
Poulios, Konstantinos
49d916c4-0482-4292-a35f-ee592baaabd5
Fry, Daniel
c5cf89a3-cc07-4ebd-89b9-bffc2b5dff24
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Ismail, Nur
16804958-fe4d-4a0c-ad60-4bff66e26a37
Wörhoff, Kerstin
0846df0f-7dc5-48f7-b029-e13532f6403a
O'Brien, Jeremy L.
03208a26-089b-4212-b691-87f26cff783c
Thompson, Mark G.
c5ee6a35-31e8-4ddd-9744-7b5eb54af38e
Poulios, Konstantinos
49d916c4-0482-4292-a35f-ee592baaabd5
Fry, Daniel
c5cf89a3-cc07-4ebd-89b9-bffc2b5dff24
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Ismail, Nur
16804958-fe4d-4a0c-ad60-4bff66e26a37
Wörhoff, Kerstin
0846df0f-7dc5-48f7-b029-e13532f6403a
O'Brien, Jeremy L.
03208a26-089b-4212-b691-87f26cff783c
Thompson, Mark G.
c5ee6a35-31e8-4ddd-9744-7b5eb54af38e

Poulios, Konstantinos, Fry, Daniel, Politi, Alberto, Ismail, Nur, Wörhoff, Kerstin, O'Brien, Jeremy L. and Thompson, Mark G. (2013) Two-photon quantum interference in integrated multi-mode interference devices. Optics Express, 21 (20), 23401-23409. (doi:10.1364/OE.21.023401). (PMID:24104253)

Record type: Article

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 2x2 MMI devices without the requirement of narrow-band photons.

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More information

Accepted/In Press date: 2 September 2013
e-pub ahead of print date: 25 September 2013
Published date: 7 October 2013
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 377124
URI: http://eprints.soton.ac.uk/id/eprint/377124
ISSN: 1094-4087
PURE UUID: 568552cd-d2c5-4d5d-b3f2-5490d1ce80d0
ORCID for Alberto Politi: ORCID iD orcid.org/0000-0002-3668-9474

Catalogue record

Date deposited: 26 May 2015 10:36
Last modified: 24 Sep 2019 00:36

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Contributors

Author: Konstantinos Poulios
Author: Daniel Fry
Author: Alberto Politi ORCID iD
Author: Nur Ismail
Author: Kerstin Wörhoff
Author: Jeremy L. O'Brien
Author: Mark G. Thompson

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