Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths

Chandra M Natarajan; Lijian Zhang; Hendrik Coldenstrodt-Ronge; Gaia Donati; Sander N. Dorenbos; Val Zwiller; Ian A. Walmsley; Robert H Hadfield

doi:10.1364/OE.21.000893

Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths

Chandra M Natarajan, Lijian Zhang, Hendrik Coldenstrodt-Ronge, Gaia Donati, Sander N. Dorenbos, Val Zwiller, Ian A. Walmsley, Robert H Hadfield

School of Engineering & Physical Sciences

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Abstract

Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom wavelength optical quantum information science applications. Quantum detector tomography allows the positive-operator-valued measure (POVM) of a single-photon detector to be determined. We use an all-fiber telecom wavelength detector tomography test bed to measure detector characteristics with respect to photon flux and polarization, and hence determine the POVM. We study the SNSPD both as a binary detector and in an 8-bin, fiber based, Time-Multiplexed (TM) configuration at repetition rates up to 4 MHz. The corresponding POVMs provide an accurate picture of the photon number resolving capability of the TM-SNSPD. (C) 2013 Optical Society of America

Original language	English
Pages (from-to)	893-902
Number of pages	10
Journal	Optics Express
Volume	21
Issue number	1
DOIs	https://doi.org/10.1364/OE.21.000893
Publication status	Published - 14 Jan 2013

Keywords

OPTICAL-DETECTOR
LIGHT

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title = "Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths",

abstract = "Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom wavelength optical quantum information science applications. Quantum detector tomography allows the positive-operator-valued measure (POVM) of a single-photon detector to be determined. We use an all-fiber telecom wavelength detector tomography test bed to measure detector characteristics with respect to photon flux and polarization, and hence determine the POVM. We study the SNSPD both as a binary detector and in an 8-bin, fiber based, Time-Multiplexed (TM) configuration at repetition rates up to 4 MHz. The corresponding POVMs provide an accurate picture of the photon number resolving capability of the TM-SNSPD. (C) 2013 Optical Society of America",

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AU - Coldenstrodt-Ronge, Hendrik

AU - Donati, Gaia

AU - Dorenbos, Sander N.

AU - Zwiller, Val

AU - Walmsley, Ian A.

AU - Hadfield, Robert H

PY - 2013/1/14

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N2 - Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom wavelength optical quantum information science applications. Quantum detector tomography allows the positive-operator-valued measure (POVM) of a single-photon detector to be determined. We use an all-fiber telecom wavelength detector tomography test bed to measure detector characteristics with respect to photon flux and polarization, and hence determine the POVM. We study the SNSPD both as a binary detector and in an 8-bin, fiber based, Time-Multiplexed (TM) configuration at repetition rates up to 4 MHz. The corresponding POVMs provide an accurate picture of the photon number resolving capability of the TM-SNSPD. (C) 2013 Optical Society of America

AB - Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom wavelength optical quantum information science applications. Quantum detector tomography allows the positive-operator-valued measure (POVM) of a single-photon detector to be determined. We use an all-fiber telecom wavelength detector tomography test bed to measure detector characteristics with respect to photon flux and polarization, and hence determine the POVM. We study the SNSPD both as a binary detector and in an 8-bin, fiber based, Time-Multiplexed (TM) configuration at repetition rates up to 4 MHz. The corresponding POVMs provide an accurate picture of the photon number resolving capability of the TM-SNSPD. (C) 2013 Optical Society of America

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Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths

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Keywords

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