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Amplitude-multiplexed readout of single photon detectors based on superconducting nanowires

Amplitude-multiplexed readout of single photon detectors based on superconducting nanowires
Amplitude-multiplexed readout of single photon detectors based on superconducting nanowires
The realization of large-scale photonic circuits for quantum optics experiments at telecom wavelengths requires an increasing number of integrated detectors. Superconducting nanowire single photon detectors (SNSPDs) can be easily integrated onchip, and they can efficiently detect the light propagating inside waveguides. The thermal budget of cryostats poses a limit on the maximum number of elements that can be integrated on the same chip due to the thermal impact of the readout electronics. In this paper, we propose and implement a novel amplitude-multiplexing scheme allowing the efficient reading of several SNSPDs with only one readout port, thus enabling the realization of photonic circuits with a large number of modes.
2334-2536
823-828
Gaggero, Alessandro
f895892c-1179-48a9-b843-b7cb158ed77d
Martini, Francesco
394af6a7-dbcf-4d7b-9add-f7ed80bfe020
Mattioli, Francesco
1be88232-495d-495b-b1c0-3511fe9d77cd
Chiarello, Fabio
1a6a93a6-ca9d-4c92-9110-f58e84841285
Cernansky, Robert
8ccb162e-f8ee-4209-a5aa-e9a79e80b919
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Leoni, Roberto
c92f30ee-d408-4e3d-8ad2-f180bc23c243
Gaggero, Alessandro
f895892c-1179-48a9-b843-b7cb158ed77d
Martini, Francesco
394af6a7-dbcf-4d7b-9add-f7ed80bfe020
Mattioli, Francesco
1be88232-495d-495b-b1c0-3511fe9d77cd
Chiarello, Fabio
1a6a93a6-ca9d-4c92-9110-f58e84841285
Cernansky, Robert
8ccb162e-f8ee-4209-a5aa-e9a79e80b919
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Leoni, Roberto
c92f30ee-d408-4e3d-8ad2-f180bc23c243

Gaggero, Alessandro, Martini, Francesco, Mattioli, Francesco, Chiarello, Fabio, Cernansky, Robert, Politi, Alberto and Leoni, Roberto (2019) Amplitude-multiplexed readout of single photon detectors based on superconducting nanowires. Optica, 6, 823-828. (doi:10.1364/OPTICA.6.000823).

Record type: Article

Abstract

The realization of large-scale photonic circuits for quantum optics experiments at telecom wavelengths requires an increasing number of integrated detectors. Superconducting nanowire single photon detectors (SNSPDs) can be easily integrated onchip, and they can efficiently detect the light propagating inside waveguides. The thermal budget of cryostats poses a limit on the maximum number of elements that can be integrated on the same chip due to the thermal impact of the readout electronics. In this paper, we propose and implement a novel amplitude-multiplexing scheme allowing the efficient reading of several SNSPDs with only one readout port, thus enabling the realization of photonic circuits with a large number of modes.

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Accepted/In Press date: 15 May 2019
e-pub ahead of print date: 20 June 2019

Identifiers

Local EPrints ID: 431904
URI: http://eprints.soton.ac.uk/id/eprint/431904
ISSN: 2334-2536
PURE UUID: 16aebc34-afad-4341-a98e-8753cd87faf6
ORCID for Alberto Politi: ORCID iD orcid.org/0000-0002-3668-9474

Catalogue record

Date deposited: 21 Jun 2019 16:30
Last modified: 07 Oct 2020 02:04

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