Print Email Facebook Twitter Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths Title Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths Author Natarajan, C.M. Zhang, L. Coldenstrodt-Ronge, H. Donati, G. Dorenbos, S.N. Zwiller, V. Walmsley, I.A. Hadfield, R.H. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2013-01-09 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. To reference this document use: http://resolver.tudelft.nl/uuid:dc55dfc9-87d2-44a2-83ce-9ac2ee7c8059 DOI https://doi.org/10.1364/OE.21.000893 Publisher Optical Society of America ISSN 1094-4087 Source http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-1-893 Source Optics Express, 21 (1), 2013 Part of collection Institutional Repository Document type journal article Rights © 2013 Optical Society of America Files PDF Zwiller_2013.pdf 1.22 MB Close viewer /islandora/object/uuid:dc55dfc9-87d2-44a2-83ce-9ac2ee7c8059/datastream/OBJ/view