Resolving Photon Numbers Using a Superconducting Nanowire with Impedance-Matching Taper

Superconducting nanowire photon- number-resolving detector at telecommunication wavelengths

Department of Physics, Moscow State Pedagogical University (MSPU), 119992 Moscow, Russian Federation Institute of Photonics and Quantum Electronics (IPEQ), Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 3, CH-1015 Lausanne, Switzerland Istituto di Fotonica e Nanotecnologie (IFN), CNR, via Cineto Romano 42, 00156 Rome, Italy Institute of Complex Matter Physics (IPMC), Ecole Polytechniq...

photon-counting optical communications using a superconducting nanowire detector

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Niobium Superconducting Nanowire Single-Photon Detectors

We investigate the performance of superconducting nanowire photon detectors fabricated from ultra-thin Nb. A direct comparison is made between these detectors and similar nanowire detectors fabricated from NbN. We find that Nb detectors are significantly more susceptible than NbN to thermal instability (latching) at high bias. We show that the devices can be stabilized by reducing the input res...

Superconducting-nanowire single-photon-detector linear array

Multi-element superconducting nanowire single photon detectors

Single-photon-detector arrays can provide unparalleled performance and detailed information in applications that require precise timing and single photon sensitivity. Such arrays have been demonstrated using a number of single-photon-detector technologies, but the high performance of superconducting nanowire single photon detectors (SNSPDs) and the unavoidable overhead of cryogenic cooling make...