Free-space optical links for space communication networks
TL;DR: In this paper, the basic principles and current trends of free-space optical communication (FSO) are described and compared to the traditional radio-frequency-based communication systems for space communication.
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Abstract: Future spacecraft will require a paradigm shift in the way the information is transmitted due to the continuous increase in the amount of data requiring space links. Current radiofrequency-based communication systems impose a bottleneck in the volume of data that can be transmitted back to Earth due to technological as well as regulatory reasons. Free-space optical communication has finally emerged as a key technology for solving the increasing bandwidth limitations for space communication while reducing the size, weight and power of satellite communication systems, and taking advantage of a license-free spectrum. In the last few years, many missions have demonstrated in orbit the fundamental principles of this technology proving to be ready for operational deployment, and we are now witnessing the emergence of an increasing number of projects oriented to exploit space laser communication (lasercom) in scientific and commercial applications. This chapter describes the basic principles and current trends of this new technology.
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Citations
Satellite-based quantum information networks: use cases, architecture, and roadmap
L. de Forges de Parny,Olivier Alibart,J. Debaud,Sacha Gressani,Alek Lagarrigue,Anthony Martin,Alexandre Metrat,Matteo Schiavon,Tess Troisi,Eleni Diamanti,Patrick Gelard,Erik Kerstel,Sébastien Tanzilli,Mathias van den Bossche +13 more
TL;DR: In this paper , a high-level architecture of a generic quantum information network (QIN) is presented, with the aim of identifying the main design drivers and critical elements, as well as issues related to standardisation.
Tbit/s line-rate satellite feeder links enabled by coherent modulation and full-adaptive optics
Yannik Horst,Bertold Ian Bitachon,Laurenz Kulmer,Jannik Brun,Tobias Blatter,Jean-Marc Conan,Aurélie Montmerle-Bonnefois,J. Montri,B. Sorrente,C. B. Lim,Nicolas Vedrenne,Daniel Matter,L. Pommarel,Benedikt Baeuerle,Juerg Leuthold +14 more
TL;DR: In this paper , the authors demonstrate single-carrier Tbit/s line-rate transmission over a free-space channel of 53.42 km between the Jungfraujoch mountain top (3700 m) in the Swiss Alps and the Zimmerwald Observatory (895 m) near the city of Bern, achieving net-rates of up to 0.94 T bit/s.
Demonstration of a Real-Time 14 Tb/s Multi-Aperture Transmit Single-Aperture Receive FSO System With Class 1 Eye-Safe Transmit Intensity
Keisuke Matsuda,Masashi Binkai,Shota Koshikawa,Tsuyoshi Yoshida,Hayato Sano,Yoshiaki Konishi,Naoki Suzuki +6 more
TL;DR: In this article , the authors used a 9-aperture transmit, single-APerture receive FSO system to reduce the transmit power of a C-band transmitter to achieve a link budget capable of supporting high capacity free space optical communication.
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References
Satellite-to-ground quantum-limited communication using a 50-kg-class microsatellite
Hideki Takenaka,Alberto Carrasco-Casado,Mikio Fujiwara,Mitsuo Kitamura,Masahide Sasaki,Morio Toyoshima +5 more
TL;DR: In this article, a quantum-limited communication experiment between a microsatellite (48 kg, 50 cm cube) in low Earth orbit and a ground station was reported, where non-orthogonal polarization states were transmitted from the satellite at a 10 MHz repetition rate.
337
The Photonic Lantern
Tim A. Birks,Itandehui Gris-Sánchez,Stephanos Yerolatsitis,Sergio G. Leon-Saval,Robert R. Thomson +4 more
TL;DR: In this article, the authors propose a low-loss interface between single-mode and multimode systems where the precise optical mapping between cores and individual modes is unimportant, by merging several singlemode cores into one multimode core.
The photonic lantern
Tim A. Birks,Itandehui Gris-Sánchez,Stephanos Yerolatsitis,Sergio G. Leon-Saval,Robert R. Thomson +4 more
TL;DR: In this article, the authors propose a low-loss interface between single-mode and multimode systems, where the precise optical mapping between cores and individual modes is unimportant, by merging several singlemode cores into one multimode core.
Near-Earth Laser Communications
Hamid Hemmati
- 03 Mar 2009
TL;DR: In this paper, an introduction to the near-Earth laser communication technology is presented, which includes the atmospheric effects, laser transmitter, receiver, optomechanical assembly, laser beam acquisition tracking and pointing, modulation and coding.
212
Experiments on laser guide stars at Mauna Kea Observatory for adaptive imaging in astronomy
TL;DR: In this article, Foy and Labeyrie used a laser to generate an artificial guide star in the mesospheric sodium layer to compensate for the turbulence of ground-based astronomical telescopes.
198