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Proceedings Paper • Open Access

Quantum measurements of signals from the Alphasat TDP1 laser communication terminal
Author(s): D. Elser; K. Günthner; I. Khan; B. Stiller; Ö Bayraktar; C. R. Müller; K. Saucke; D. Tröndle; F. Heine; S. Seel; P. Greulich; H. Zech; B. Gütlich; I. Richter; S. Philipp-May; Ch. Marquardt; G. Leuchs

Paper Abstract

Quantum optics [1] can be harnessed to implement cryptographic protocols that are verifiably immune against any conceivable attack [2]. Even quantum computers, that will break most current public keys [3, 4], cannot harm quantum encryption. Based on these intriguing quantum features, metropolitan quantum networks have been implemented around the world [5-15]. However, the long-haul link between metropolitan networks is currently missing [16]. Existing fiber infrastructure is not suitable for this purpose since classical telecom repeaters cannot relay quantum states [2]. Therefore, optical satellite-to-ground communication [17-22] lends itself to bridge intercontinental distances for quantum communication [23-40].

Paper Details

Date Published: 25 September 2017
PDF: 6 pages
Proc. SPIE 10562, International Conference on Space Optics — ICSO 2016, 105623O (25 September 2017); doi: 10.1117/12.2296184
Show Author Affiliations
D. Elser, Max-Planck-Institut für die Physik des Lichts (Germany)
Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
K. Günthner, Max-Planck-Institut für die Physik des Lichts (Germany)
Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
I. Khan, Max-Planck-Institut für die Physik des Lichts (Germany)
Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
B. Stiller, Max-Planck-Institut für die Physik des Lichts (Germany)
Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
Ö Bayraktar, Max-Planck-Institut für die Physik des Lichts (Germany)
Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
C. R. Müller, Max-Planck-Institut für die Physik des Lichts (Germany)
Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
K. Saucke, Tesat-Spacecom GmbH & Co. KG (Germany)
D. Tröndle, Tesat-Spacecom GmbH & Co. KG (Germany)
F. Heine, Tesat-Spacecom GmbH & Co. KG (Germany)
S. Seel, Tesat-Spacecom GmbH & Co. KG (Germany)
P. Greulich, Tesat-Spacecom GmbH & Co. KG (Germany)
H. Zech, Tesat-Spacecom GmbH & Co. KG (Germany)
B. Gütlich, German Aerospace Ctr. (Germany)
I. Richter, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
S. Philipp-May, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Ch. Marquardt, Max-Planck-Institut für die Physik des Lichts (Germany)
Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
G. Leuchs, Max-Planck-Institut für die Physik des Lichts (Germany)
Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)


Published in SPIE Proceedings Vol. 10562:
International Conference on Space Optics — ICSO 2016
Bruno Cugny; Nikos Karafolas; Zoran Sodnik, Editor(s)

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