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Proceedings Paper

Towards integrated superconducting detectors on lithium niobate waveguides
Author(s): Jan Philipp Höpker; Moritz Bartnick; Evan Meyer-Scott; Frederik Thiele; Stephan Krapick; Nicola Montaut; Matteo Santandrea; Harald Herrmann; Sebastian Lengeling; Raimund Ricken; Viktor Quiring; Torsten Meier; Adriana Lita; Varun Verma; Thomas Gerrits; Sae Woo Nam; Christine Silberhorn; Tim J. Bartley
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Paper Abstract

Superconducting detectors are now well-established tools for low-light optics, and in particular quantum optics, boasting high-eciency, fast response and low noise. Similarly, lithium niobate is an important platform for integrated optics given its high second-order nonlinearity, used for high-speed electro-optic modulation and polarization conversion, as well as frequency conversion and sources of quantum light. Combining these technologies addresses the requirements for a single platform capable of generating, manipulating and measuring quantum light in many degrees of freedom, in a compact and potentially scalable manner. We will report on progress integrating tungsten transition-edge sensors (TESs) and amorphous tungsten silicide superconducting nanowire single-photon detectors (SNSPDs) on titanium in-di‚used lithium niobate waveguides. ‘e travelling-wave design couples the evanescent €eld from the waveguides into the superconducting absorber. We will report on simulations and measurements of the absorption, which we can characterize at room temperature prior to cooling down the devices. Independently, we show how the detectors respond to ƒood illumination, normally incident on the devices, demonstrating their functionality.

Paper Details

Date Published: 29 August 2017
PDF: 7 pages
Proc. SPIE 10358, Quantum Photonic Devices, 1035809 (29 August 2017); doi: 10.1117/12.2273388
Show Author Affiliations
Jan Philipp Höpker, Univ. Paderborn (Germany)
Moritz Bartnick, Univ. Paderborn (Germany)
Evan Meyer-Scott, Univ. Paderborn (Germany)
Frederik Thiele, Univ. Paderborn (Germany)
Stephan Krapick, Univ. Paderborn (Germany)
Nicola Montaut, Univ. Paderborn (Germany)
Matteo Santandrea, Univ. Paderborn (Germany)
Harald Herrmann, Univ. Paderborn (Germany)
Sebastian Lengeling, Univ. Paderborn (Germany)
Raimund Ricken, Univ. Paderborn (Germany)
Viktor Quiring, Univ. Paderborn (Germany)
Torsten Meier, Univ. Paderborn (Germany)
Adriana Lita, National Institute of Standards and Technology (United States)
Varun Verma, National Institute of Standards and Technology (United States)
Thomas Gerrits, National Institute of Standards and Technology (United States)
Sae Woo Nam, National Institute of Standards and Technology (United States)
Christine Silberhorn, Univ. Paderborn (Germany)
Tim J. Bartley, Univ. Paderborn (Germany)

Published in SPIE Proceedings Vol. 10358:
Quantum Photonic Devices
Cesare Soci; Mario Agio; Kartik Srinivasan, Editor(s)

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