Modelling superconducting nanowire single photon detectors in a waveguide cavity

Nicola A Tyler; Jorge Barreto; Gerardo E. Villarreal-Garcia; Damien Bonneau; Dondu Sahin; Jeremy L O'Brien; Mark G Thompson

doi:10.1364/OE.24.008797

Modelling superconducting nanowire single photon detectors in a waveguide cavity

Nicola A Tyler, Jorge Barreto, Gerardo E. Villarreal-Garcia, Damien Bonneau, Dondu Sahin, Jeremy L O'Brien, Mark G Thompson

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

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Abstract

In this work we report on a single photon detector system which offers near-unity detection efficiency using waveguide-coupled superconducting nanowires with lengths on the order of 1 μm. This is achieved by embedding the nanowires in a racetrack resonator where the interaction time with the photons trapped in the cavity is increased, thereby allowing for shorter nanowires. We expect this to lead to a higher fabrication yield as the amount of inhomogeneities decreases for shorter nanowires. Our simulations show a system with a 1 μm long superconducting nanowire single photon detector (SNSPD) operating at near-unity detection efficiency using design parameters that can be realistically achieved with conventional fabrication processes. The resonant cavity introduces spectral selectivity to the otherwise broad-band SNSPDs and the cavity induced timing jitter is shown to be insignificant for SNSPDs longer than 1 μm.

Original language	English
Pages (from-to)	8797-8808
Number of pages	12
Journal	Optics Express
Volume	24
Issue number	8
DOIs	https://doi.org/10.1364/OE.24.008797
Publication status	Published - 19 Apr 2016
Event	Photon 16 - University of Leeds, Leeds, United Kingdom Duration: 5 Sep 2016 → 8 Sep 2016

Keywords

Detectors
Optical resonators
Integrated optics
Wavelength filtering devices
Photonic integrated circuits
Photodetectors

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2 Active
4 Finished

Training and Skills Hubs in Quantum Systems Engineering: The Quantum Enterprise Hub.
Collins, A. M.
1/04/16 → 30/06/21
Project: Research
Research Chair in Emerging Technologies
O'Brien, J. L.
1/02/13 → 31/01/23
Project: Research
Programme Grant: Engineering Photonic Quantum Technologies.
Rarity, J. G., O'Brien, J. L., Thompson, M. G., Erven, C., Sahin, D., Marshall, G. D., Barreto, J., Jiang, P., Mccutcheon, W. D., Silverstone, J. W., Sinclair, G. F., Kling, L., Banerjee, A., Wang, J., Santagati, R., Borghi, M., Woodland, E. M., Mawdsley, H. C. M. & Faruque, I. I.
16/06/14 → 15/06/19
Project: Research, Parent

Dr Jorge Barreto
- G.Barreto@bristol.ac.uk
Person: Academic , Member

Cite this

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title = "Modelling superconducting nanowire single photon detectors in a waveguide cavity",

abstract = "In this work we report on a single photon detector system which offers near-unity detection efficiency using waveguide-coupled superconducting nanowires with lengths on the order of 1 μm. This is achieved by embedding the nanowires in a racetrack resonator where the interaction time with the photons trapped in the cavity is increased, thereby allowing for shorter nanowires. We expect this to lead to a higher fabrication yield as the amount of inhomogeneities decreases for shorter nanowires. Our simulations show a system with a 1 μm long superconducting nanowire single photon detector (SNSPD) operating at near-unity detection efficiency using design parameters that can be realistically achieved with conventional fabrication processes. The resonant cavity introduces spectral selectivity to the otherwise broad-band SNSPDs and the cavity induced timing jitter is shown to be insignificant for SNSPDs longer than 1 μm.",

keywords = "Detectors, Optical resonators, Integrated optics, Wavelength filtering devices, Photonic integrated circuits, Photodetectors",

author = "Tyler, {Nicola A} and Jorge Barreto and Villarreal-Garcia, {Gerardo E.} and Damien Bonneau and Dondu Sahin and O'Brien, {Jeremy L} and Thompson, {Mark G}",

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AU - Tyler, Nicola A

AU - Barreto, Jorge

AU - Villarreal-Garcia, Gerardo E.

AU - Bonneau, Damien

AU - Sahin, Dondu

AU - O'Brien, Jeremy L

AU - Thompson, Mark G

PY - 2016/4/19

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AB - In this work we report on a single photon detector system which offers near-unity detection efficiency using waveguide-coupled superconducting nanowires with lengths on the order of 1 μm. This is achieved by embedding the nanowires in a racetrack resonator where the interaction time with the photons trapped in the cavity is increased, thereby allowing for shorter nanowires. We expect this to lead to a higher fabrication yield as the amount of inhomogeneities decreases for shorter nanowires. Our simulations show a system with a 1 μm long superconducting nanowire single photon detector (SNSPD) operating at near-unity detection efficiency using design parameters that can be realistically achieved with conventional fabrication processes. The resonant cavity introduces spectral selectivity to the otherwise broad-band SNSPDs and the cavity induced timing jitter is shown to be insignificant for SNSPDs longer than 1 μm.

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KW - Optical resonators

KW - Integrated optics

KW - Wavelength filtering devices

KW - Photonic integrated circuits

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Modelling superconducting nanowire single photon detectors in a waveguide cavity

Abstract

Keywords

Access to Document

Embargoed Document

Training and Skills Hubs in Quantum Systems Engineering: The Quantum Enterprise Hub.

Research Chair in Emerging Technologies

Programme Grant: Engineering Photonic Quantum Technologies.

Dr Jorge Barreto

Cite this