Výsledky vyhledávání - "Raupach, Sebastian M. F."

Report

Photon-number dependent afterpulsing in superconducting nanostrip single-photon detectors

Autor: Raupach, Sebastian M. F., Sidorova, Mariia, Semenov, Alexej D.

Superconducting nanostrip single-photon detectors (SNSPD) are wide-spread tools in photonic quantum technologies. Here, we study afterpulsing in commercial SNSPD made of amorphous superconducting material. We find that the probability of an afterpuls

Externí odkaz: http://arxiv.org/abs/2303.17861

Zobrazit plný text záznamu

Report

Unexpected detection rate dependence of the intrinsic detection efficiency in single-photon detectors based on avalanche diodes

Autor: Raupach, Sebastian M. F., Degiovanni, Ivo Pietro, Georgieva, Hristina, Meda, Alice, Hofer, Helmuth, Gramegna, Marco, Genovese, Marco, Kück, Stefan, López, Marco

Single-photon detectors are a pivotal component in photonic quantum technologies. A precise and comprehensive calibration of the intrinsic detection efficiency is of utmost importance to ensure the proper evaluation of the performance in view of the

Externí odkaz: http://arxiv.org/abs/2112.10647

Zobrazit plný text záznamu

Report

Detection of ultra-weak laser pulses by free-running single-photon detectors: modeling dead time and dark counts effects

Autor: Georgieva, Hristina, Meda, Alice, Raupach, Sebastian M. F., Hofer, Helmuth, Gramegna, Marco, Degiovanni, Ivo Pietro, Genovese, Marco, Lopez, Marco, Kück, Stefan

Publikováno v: Appl. Phys. Lett. 118, 174002 (2021)

In quantum communication systems, the precise estimation of the detector's response to the incoming light is necessary to avoid security breaches. The typical working regime uses a free-running single-photon avalanche diode in combination with attenu

Externí odkaz: http://arxiv.org/abs/2104.08004

Zobrazit plný text záznamu

Report

Combining fiber Brillouin amplification with a repeater laser station for fiber-based optical frequency dissemination over 1400 km

Autor: Koke, Sebastian, Kuhl, Alexander, Waterholter, Thomas, Raupach, Sebastian M. F., Lopez, Olivier, Cantin, Etienne, Quintin, Nicolas, Amy-Klein, Anne, Pottie, Paul-Eric, Grosche, Gesine

Publikováno v: New J. Phys. 21 123017 (2019)

We investigate optical frequency dissemination over a 1400 km long fiber link in looped configuration over a pair of underground fibers between Braunschweig and Strasbourg. This fiber link is the first to combine fiber Brillouin amplifiers with a rep

Externí odkaz: http://arxiv.org/abs/1911.01215

Zobrazit plný text záznamu

Report

Characterization of a 450-km Baseline GPS Carrier-Phase Link using an Optical Fiber Link

Autor: Droste, Stefan, Grebing, Christian, Leute, Julia, Raupach, Sebastian M. F., Matveev, Arthur, Hänsch, Theodor W., Bauch, Andreas, Holzwarth, Ronald, Grosche, Gesine

A GPS carrier-phase frequency transfer link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical fiber link of 920 km length, established between the two endpoints, the Max-Planck-Institut

Externí odkaz: http://arxiv.org/abs/1505.02144

Zobrazit plný text záznamu

Report

Brillouin amplification supports $1\times10^{-20}$ accuracy in optical frequency transfer over 1400~km of underground fibre

Autor: Raupach, Sebastian M. F., Koczwara, Andreas, Grosche, Gesine

We investigate optical frequency transfer over a 1400~km loop of underground fibre connecting Braunschweig and Strasbourg. Largely autonomous fibre Brillouin amplifiers (FBA) are the only means of intermediate amplification, allowing phase-continuous

Externí odkaz: http://arxiv.org/abs/1504.01567

Zobrazit plný text záznamu