Print Email Facebook Twitter Multimode-fiber-coupled superconducting nanowire single-photon detectors with high detection efficiency and time resolution Title Multimode-fiber-coupled superconducting nanowire single-photon detectors with high detection efficiency and time resolution Author Chang, J. (TU Delft ImPhys/Optics) Esmaeil Zadeh, I.Z. (TU Delft ImPhys/Optics) Los, Johannes W.N. (Single Quantum B.V.) Zichi, Julien (KTH Royal Institute of Technology) Fognini, Andreas (Single Quantum B.V.) Gevers, Monique (Single Quantum B.V.) Dorenbos, Sander (Single Quantum B.V.) Pereira, S.F. (TU Delft ImPhys/Optics) Urbach, Paul (TU Delft ImPhys/Optics) Zwiller, Val (KTH Royal Institute of Technology) Date 2019 Abstract In the past decade, superconducting nanowire single-photon detectors (SNSPDs) have gradually become an indispensable part of any demanding quantum optics experiment. Until now, most SNSPDs have been coupled to single-mode fibers. SNSPDs coupled to multimode fibers have shown promising efficiencies but have yet to achieve high time resolution. For a number of applications ranging from quantum nano-photonics to bio-optics, high efficiency and high time resolution are desired at the same time. In this paper, we demonstrate the role of polarization on the efficiency of multimode-fiber-coupled detectors and fabricated high-performance 20 µm, 25 µm, and 50 µm diameter detectors targeted for visible, near-infrared, and telecom wavelengths. A custom-built setup was used to simulate realistic experiments with randomized modes in the fiber. We achieved over 80% system efficiency and <20 ps timing jitter for 20 µm SNSPDs. Also, we realized 70% system efficiency and <20 ps timing jitter for 50 µm SNSPDs. The high-efficiency multimode-fiber-coupled SNSPDs with unparalleled time resolution will benefit various quantum optics experiments and applications in the future. To reference this document use: http://resolver.tudelft.nl/uuid:8ab28b0f-b1a8-464e-be83-b9ab6f116b1e DOI https://doi.org/10.1364/AO.58.009803 ISSN 1559-128X Source Applied Optics, 58 (36), 9803-9807 Part of collection Institutional Repository Document type journal article Rights © 2019 J. Chang, I.Z. Esmaeil Zadeh, Johannes W.N. Los, Julien Zichi, Andreas Fognini, Monique Gevers, Sander Dorenbos, S.F. Pereira, Paul Urbach, Val Zwiller Files PDF ao_58_36_9803.pdf 2.37 MB Close viewer /islandora/object/uuid:8ab28b0f-b1a8-464e-be83-b9ab6f116b1e/datastream/OBJ/view