Dr. Masahide Sasaki Profile

Dr. Masahide Sasaki

Director at NICT

SPIE Involvement:

Author

Proceedings Article | 11 June 2021 Open Access

Performance analysis of polar-code transmission experiments over 7.8-km terrestrial free-space optical link using channel equalization

Shingo Fujia, E. Okamoto, H. Takenaka, H. Kunimori, H. Endo, M. Fujiwara, R. Shimizu, M. Sasaki, M. Toyoshima

Proceedings Volume 11852, 118525K (2021) https://doi.org/10.1117/12.2599963

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Proceedings Article | 9 October 2019 Presentation + Paper

Free-space optical secret key agreement with post-selection based on channel state information

Hiroyuki Endo, Mikio Fujiwara, Mitsuo Kitamura, Orie Tsuzuki, Ryosuke Shimizu, Masahiro Takeoka, Masahide Sasaki

Proceedings Volume 11153, 111530K (2019) https://doi.org/10.1117/12.2532232

KEYWORDS: Free space optics, Information security, Network security, Optical information security

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Proceedings Article | 4 March 2019 Paper

Research and development of highly secure free-space optical communication system for mobile platforms in NICT

Yoshihiko Saito, Hiroyuki Endo, Hideki Takenaka, Yasushi Munemasa, Mikio Fujiwara, Alberto Carrasco-Casado, Phuc Trinh, Mitsuo Kitamura, Toshihiro Kubo-oka, Masahiro Takeoka, Masahide Sasaki, Morio Toyoshima

Proceedings Volume 10910, 109100I (2019) https://doi.org/10.1117/12.2513873

KEYWORDS: Telecommunications, Free space optics, Transmitters, Telescopes, Satellites, Receivers, Free space optical communications, Quantum key distribution, Satellite communications, Quantum communications

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Proceedings Article | 14 May 2018 Paper

QKD from a microsatellite: the SOTA experience

Alberto Carrasco-Casado, Hideki Takenaka, Mikio Fujiwara, Mitsuo Kitamura, Masahide Sasaki, Morio Toyoshima

Proceedings Volume 10660, 106600B (2018) https://doi.org/10.1117/12.2309624

KEYWORDS: Quantum key distribution, Satellites, Polarization, Receivers, Telescopes, Quantum communications, Satellite communications, Information security, Photons, Beam splitters

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Proceedings Article | 17 November 2017 Open Access

Coupling efficiency of laser beam to multimode fiber for free space optical communication

Suguru Arisa, Yoshihisa Takayama, Hiroyuki Endo, Ryosuke Shimizu, Mikio Fujiwara, Masahide Sasaki

Proceedings Volume 10563, 105630Y (2017) https://doi.org/10.1117/12.2304222

KEYWORDS: Telecommunications, Free space optics, Atmospheric propagation, Atmospheric turbulence, Optical communications, Receivers, Multimode fibers, Atmospheric optics, Astronomical imaging, Free space optical communications

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Proceedings Article | 24 October 2016 Paper

Photonic quantum digital signatures operating over kilometer ranges in installed optical fiber

Robert Collins, Mikio Fujiwara, Ryan Amiri, Toshimori Honjo, Kaoru Shimizu, Kiyoshi Tamaki, Masahiro Takeoka, Erika Andersson, Gerald Buller, Masahide Sasaki

Proceedings Volume 9996, 999604 (2016) https://doi.org/10.1117/12.2241502

KEYWORDS: Information security, Quantum key distribution, Optical fibers, Digital photography, Receivers, Quantum information, Sensors, Clocks, Standards development, Telecommunications

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Proceedings Article | 19 May 2012 Paper

Novel photon detection technologies for quantum communications

M. Sasaki, A. Tanaka, M. Fujiwara, K. Yoshino, S. Takahashi, Y. Nambu, A. Tomita, A. Tajima, S. Miki, T. Yamashita, H. Terai, Z. Wang, K. Tsujino, D. Fukuda, M. Takeoka

Proceedings Volume 8375, 837503 (2012) https://doi.org/10.1117/12.919917

KEYWORDS: Photodetectors, Avalanche photodetectors, Quantum key distribution, Receivers, Signal detection, Sensors, Quantum communications, Indium gallium arsenide, Superconductors, Nanowires

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Proceedings Article | 29 April 2010 Paper

A superconducting nanowire single-photon detector system for single-photon source characterization

C. Fitzpatrick, C. Natarajan, R. Warburton, G. Buller, B. Baek, S. Nam, S. Miki, Z. Wang, M. Sasaki, A. Sinclair, R. Hadfield

Proceedings Volume 7681, 76810H (2010) https://doi.org/10.1117/12.851892

KEYWORDS: Sensors, Picosecond phenomena, Single photon detectors, Photons, Superconductors, Signal to noise ratio, Quantum dots, Indium gallium arsenide, Single photon, Nanowires

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Proceedings Article | 2 May 2009 Paper

Conceptual designs of onboard transceivers for ground-to-satellite quantum cryptography

Morio Toyoshima, Yozo Shoji, Yoshihisa Takayama, Hiroo Kunimori, Masahiro Takeoka, Mikio Fujiwara, Masahide Sasaki

Proceedings Volume 7324, 73240E (2009) https://doi.org/10.1117/12.820563

KEYWORDS: Quantum key distribution, Quantum cryptography, Satellites, Information security, Laser sources, Photons, Polarization, Sensors, Transceivers, Optical fibers

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Proceedings Article | 18 April 2008 Paper

Development of the polarization tracking scheme for free-space quantum cryptography

Morio Toyoshima, Yoshihisa Takayama, Hiroo Kunimori, Masahiro Takeoka, Mikio Fujiwara, Masahide Sasaki

Proceedings Volume 6951, 69510I (2008) https://doi.org/10.1117/12.783627

KEYWORDS: Polarization, Quantum cryptography, Receivers, Transmitters, Satellites, Quantum key distribution, Polarizers, Modulation, Quantum information, Modulators

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Proceedings Article | 15 October 2007 Paper

Measurement system for acquiring gain distribution of avalanche photodiodes at low gains

Kenji Tsujino, Makoto Akiba, Masahide Sasaki

Proceedings Volume 6771, 67710Z (2007) https://doi.org/10.1117/12.733873

KEYWORDS: Avalanche photodetectors, Electrons, Amplifiers, Silicon, Avalanche photodiodes, Light emitting diodes, Liquids, Nitrogen, Solids, Capacitors

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Proceedings Article | 10 September 2007 Paper

Strain-compensated quantum dots emitting at 1.5 micron: resonant nonlinear optical properties and exciton dynamics

Junko Ishi-Hayase, Kouichi Akahane, Naokatsu Yamamoto, Mamiko Kujiraoka, Kazuhiro Ema, Masahide Sasaki

Proceedings Volume 6779, 677903 (2007) https://doi.org/10.1117/12.732348

KEYWORDS: Excitons, Polarization, Anisotropy, Spectroscopy, Quantum dots, Indium arsenide, Telecommunications, Picosecond phenomena, Crystals, Four wave mixing

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Proceedings Article | 10 September 2007 Paper

Non-Gaussian control of continuous variables with photon counting and filtering

M. Sasaki, K. Wakui, H. Takahashi, M. Takeoka, S. Suzuki

Proceedings Volume 6780, 678006 (2007) https://doi.org/10.1117/12.733491

KEYWORDS: Sensors, Light sources, Superposition, Optical parametric oscillators, Homodyne detection, Single photon, Beam splitters, Avalanche photodetectors, Silicon

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Proceedings Article | 28 February 2006 Paper

Anomalous photon echoes and Rabi oscillations of quantum dot excitons

Y. Mitsumori, A. Hasegawa, M. Sasaki, F. Minami

Proceedings Volume 6115, 61151J (2006) https://doi.org/10.1117/12.661395

KEYWORDS: Excitons, Picosecond phenomena, Quantum dots, Polarization, Lab on a chip, Coherence (optics), Quantum wells, Semiconductors, Magnetism, Gallium arsenide

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Proceedings Article | 28 February 2006 Paper

Exciton dephasing in strain-compensated self-assembled InAs quantum dots

Junko Ishi-Hayase, Kouichi Akahane, Naokatsu Yamamoto, Mamiko Kujiraoka, Kazuhiro Ema, Masahide Sasaki

Proceedings Volume 6115, 61151O (2006) https://doi.org/10.1117/12.661300

KEYWORDS: Excitons, Indium arsenide, Quantum dots, Picosecond phenomena, Polarization, Gallium arsenide, Anisotropy, Four wave mixing, Crystals, Neodymium

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Proceedings Article | 11 January 2005 Paper

Quantum state engineering with entangled squeezed states and photon number detector

Akira Kitagawa, Katsuji Yamamoto, Koji Nagata, Masahiro Takeoka, Masahide Sasaki

Proceedings Volume 5631, (2005) https://doi.org/10.1117/12.580852

KEYWORDS: Picosecond phenomena, Sensors, Beam splitters, Photodetectors, Teleportation, Quantum information, Quantum state engineering, Transmittance, Entangled states, Quantum efficiency

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Proceedings Article | 11 January 2005 Paper

Design of POVMs with linear optics and continuous measurement

Masahiro Takeoka, Masahide Sasaki, Peter van Loock

Proceedings Volume 5631, (2005) https://doi.org/10.1117/12.576708

KEYWORDS: Photodetectors, Receivers, Photon counting, Optical testing, Signal detection, Binary data, Oscillators, Quantum information, Quantum communications, Beam splitters

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Proceedings Article | 29 September 2004 Paper

Performance of a GaAs JFET at cryogenic temperature for faint light detection system

Mikio Fujiwara, Masahide Sasaki, Makoto Akiba

Proceedings Volume 5499, (2004) https://doi.org/10.1117/12.550035

KEYWORDS: Field effect transistors, Gallium arsenide, Cryogenics, Capacitance, Photons, PIN photodiodes, Dielectric polarization, Indium gallium arsenide, Sensors, Electronics

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Showing 5 of 18 publications

SPIE Conference Volume | 24 January 2009

Quantum Communications Realized II

SPIE Conference Volume | 9 September 2007

Quantum Communications Realized

SPIE Conference Volume | 11 January 2005

Quantum Optics and Applications in Computing and Communications II

Conference Committee Involvement (3)

Quantum Communications Realized II

28 January 2009 | San Jose, California, United States

Quantum Communications Realized

10 September 2007 | Boston, MA, United States

Quantum Optics and Applications in Computing and Communications II

10 November 2004 | Beijing, China

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