306 citations · 695 across the 15 of their papers we have counts for
15 papers
Development and Space-Qualification of a Miniaturized CubeSat's 2-W EDFA for Space Laser Communications
Alberto Carrasco-Casado, Koichi Shiratama, Dimitar Kolev +4
The Japanese National Institute of Information and Communications Technology (NICT) is currently developing a high-performance laser-communication terminal for CubeSats aiming at p…
NICT's versatile miniaturized lasercom terminals for moving platforms
Alberto Carrasco-Casado, Koichi Shiratama, Phuc V. Trinh +5
With the goal of meeting the diverse requirements of many different types of platforms, ranging from small drones to big satellites, and being applied in a variety of diverse scena…
Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser Communications
Alberto Carrasco-Casado, Koichi Shiratama, Dimitar Kolev +9
Being able to dynamically control the transmitted-beam divergence can bring important advantages in free-space optical communications. Specifically, this technique can help to opti…
Development of a miniaturized laser-communication terminal for small satellites
Alberto Carrasco-Casado, Koichi Shiratama, Phuc V. Trinh +5
Free-space optical communication is becoming a mature technology that has been demonstrated in space a number of times in the last few years. The Japanese National Institute of Inf…
Intersatellite-link demonstration mission between CubeSOTA (LEO CubeSat) and ETS9-HICALI (GEO satellite)
Alberto Carrasco-Casado, Phong Xuan Do, Dimitar Kolev +7
LEO-to-GEO intersatellite links using laser communications bring important benefits to greatly enhance applications such as downloading big amounts of data from LEO satellites by u…
Optical communication on CubeSats - Enabling the next era in space science
Alberto Carrasco-Casado, Abhijit Biswas, Renny Fields +4
CubeSats are excellent platforms to rapidly perform simple space experiments. Several hundreds of CubeSats have already been successfully launched in the past few years and the num…
QKD from a microsatellite: the SOTA experience
Alberto Carrasco-Casado, Hideki Takenaka, Mikio Fujiwara +3
The transmission and reception of polarized quantum-limited signals from space is of capital interest for a variety of fundamental-physics experiments and quantum-communication pro…
LEO-to-ground optical communications using SOTA (Small Optical TrAnsponder) - Payload verification results and experiments on space quantum communications
Alberto Carrasco-Casado, Hideki Takenaka, Dimitar Kolev +8
Free-space optical communications have held the promise of revolutionizing space communications for a long time. The benefits of increasing the bitrate while reducing the volume, m…
Satellite-to-ground quantum communication using a 50-kg-class micro-satellite
Hideki Takenaka, Alberto Carrasco-Casado, Mikio Fujiwara +3
Recent rapid growth in the number of satellite-constellation programs for remote sensing and communications, thanks to the availability of small-size and low-cost satellites, provi…
Space QUEST mission proposal: Experimentally testing decoherence due to gravity
Siddarth Koduru Joshi, Jacques Pienaar, Timothy C. Ralph +42
Models of quantum systems on curved space-times lack sufficient experimental verification. Some speculative theories suggest that quantum properties, such as entanglement, may exhi…
Free-space optical channel estimation for physical layer security
Hiroyuki Endo, Mikio Fujiwara, Mitsuo Kitamura +10
We present experimental data on message transmission in a free-space optical (FSO) link at an eye-safe wavelength, using a testbed consisting of one sender and two receiver termina…
Modified E91 protocol demonstration with hybrid entanglement photon source
Mikio Fujiwara, Ken-ichiro Yoshino, Yoshihiro Nambu +7
We report on an experimental demonstration of the modified Ekert 91 protocol of quantum key distribution using a hybrid entanglement source with two different degrees of freedoms,…
Performance of hybrid entanglement photon pair source for quantum key distribution
M. Fujiwara, M. Toyoshima, M. Sasaki +3
We report on the experimental demonstration of a source of hybrid entanglement pairs between two different degrees of freedom, a 1550 nm time-bin qubit and an 810 nm polarization q…
Updating Quantum Cryptography Report ver. 1
Donna Dodson, Mikio Fujiwara, Philippe Grangier +24
Quantum cryptographic technology (QCT) is expected to be a fundamental technology for realizing long-term information security even against as-yet-unknown future technologies. More…
Space-QUEST: Experiments with quantum entanglement in space
Rupert Ursin, Thomas Jennewein, Johannes Kofler +36
The European Space Agency (ESA) has supported a range of studies in the field of quantum physics and quantum information science in space for several years, and consequently we hav…