Dr. Yasushi Munemasa Profile

Dr. Yasushi Munemasa

at NICT

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 4 March 2022 Presentation + Paper

Preparation of high-speed optical feeder link experiments with HICALI payload

Dimitar Kolev, Koichi Shiratama, Alberto Carrasco-Casado, Yoshihiko Saito, Yasushi Munemasa, Junichi Nakazono, Phuc Trinh, Hideaki Kotake, Hiroo Kunimori, Toshihiro Kubooka, Tetsuharu Fuse, Morio Toyoshima

Proceedings Volume 11993, 119930R (2022) https://doi.org/10.1117/12.2610635

KEYWORDS: Satellites, Telescopes, Sensors, Wavefronts, Adaptive optics, Atmospheric turbulence, Satellite communications

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Proceedings Article | 5 March 2021 Presentation + Paper

The pointing performance of the optical communication terminal, SOLISS in the experimentation of bidirectional laser communication with an optical ground station

Hiromitsu Komatsu, Shinji Ohta, Hiroaki Yamazoe, Yasushi Kubo, Takashi Nakao, Taiji Ito, Daiki Koda, Hiroaki Sawada, Toshitami Ikeda, Yasushi Munemasa, Hiroo Kunimori, Toshihiro Kubooka, Morio Toyoshima, Kyohei Iwamoto

Proceedings Volume 11678, 116780F (2021) https://doi.org/10.1117/12.2577067

KEYWORDS: Laser communications, Optical communications, Optical discs, Data communications, Telecommunications, Satellites, Satellite communications, Laser systems engineering, Laser development, Computing systems

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Proceedings Article | 5 March 2021 Presentation + Paper

Experimental results on in-orbit technology demonstration of SOLISS

Kyohei Iwamoto, Hiromitsu Komatsu, Shinji Ohta, Yasushi Kubo, Takashi Nakao, Hiroaki Yamazoe, Toshiaki Kamata, Yasushi Munemasa, Hiroo Kunimori, Morio Toyoshima, Daiki Koda, Hirotaka Sawada, Toshitami Ikeda

Proceedings Volume 11678, 116780D (2021) https://doi.org/10.1117/12.2578089

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Proceedings Article | 2 March 2020 Presentation + Paper

In-orbit experimental architecture design of bi-directional communication with a small optical communication terminal attached on ISS and an optical ground station

Hiromitsu Komatsu, Shinji Ohta, Hiroaki Yamazoe, Yasushi Kubo, Takashi Nakao, Taiji Ito, Daiki Koda, Hirotaka Sawada, Toshitami Ikeda, Yasushi Munemasa, Hiroo Kunimori, Toshihiro Kubooka, Morio Toyoshima, Kyohei Iwamoto

Proceedings Volume 11272, 112720C (2020) https://doi.org/10.1117/12.2551257

KEYWORDS: Optical communications, Telecommunications, Free space optics, Control systems, Sensors, Satellite communications, Satellites, Cameras, Signal processing, Telescopes

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Proceedings Article | 12 July 2019 Open Access

Development of “HICALI”: high speed optical feeder link system between GEO and ground

T. Kubo-oka, H. Kunimori, K. Suzuki, Y. Koyama, K. Shiratama, Y. Munemasa, H. Takenaka, D. Kolev, A. Carrasco Casado, T. Phuc, M. Toyoshima

Proceedings Volume 11180, 1118060 (2019) https://doi.org/10.1117/12.2536135

KEYWORDS: Optical communications, Satellite communications, Satellites, Telecommunications, Adaptive optics, Telescopes, Atmospheric optics, Astronomical imaging, Data communications, RF communications

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Proceedings Article | 12 July 2019 Open Access

Feasibility study of a scalable laser communication terminal in NICT for next-generation space networks

Yasushi Munemasa, Yoshihiko Saito, Alberto Carrasco-Casado, Phuc Trinh, Hideki Takenaka, Toshihiro Kubo-oka, Koichi Shiratama, Morio Toyoshima

Proceedings Volume 11180, 111805W (2019) https://doi.org/10.1117/12.2536131

KEYWORDS: Telecommunications, Satellites, Laser communications, Satellite communications, Optical communications, Ka band, RF communications, Relays, Laser development, Data communications

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Proceedings Article | 12 July 2019 Open Access

Research and Development of a Transportable Ground Optical Station in NICT

Yoshihiko Saito, Yasushi Munemasa, Hideki Takenaka, Hiroo Kunimori, Dimitar Kolev, Alberto Carrasco-Casado, Yoshisada Koyama, Koichi Shiratama, Toshihiro Kubo-oka, Morio Toyoshima

Proceedings Volume 11180, 111805S (2019) https://doi.org/10.1117/12.2536127

KEYWORDS: Telescopes, Free space optics, Active optics, Satellites, Optical communications, Satellite communications, Roads, Optical benches, Telecommunications, Receivers

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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 | 15 February 2018 Presentation + Paper

Design status of the development for a GEO-to-ground optical feeder link, HICALI

Yasushi Munemasa, Tetsuharu Fuse, Toshihiro Kubo-oka, Hiroo Kunimori, Dimitar Kolev, Alberto Carrasco-Casado, Hideki Takenaka, Yoshihiko Saito, Phuc Viet Trinh, Kenji Suzuki, Yoshisada Koyama, Morio Toyoshima

Proceedings Volume 10524, 105240F (2018) https://doi.org/10.1117/12.2291881

KEYWORDS: Satellites, Telecommunications, Satellite communications, Optical communications, Laser communications, Ka band, Laser development, Data communications, RF communications, Radio optics

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Proceedings Article | 25 September 2017 Open Access

Experimental results of satellite-to-ground laser communications link through atmospheric turbulence using SOTA

Hideki Takenaka, Dimitar Kolev, Yoshisada Koyama, Maki Akioka, Yasushi Munemasa, Hiroo Kunimori, Morio Toyoshima

Proceedings Volume 10562, 105624A (2017) https://doi.org/10.1117/12.2296179

KEYWORDS: Satellites, Space telescopes, Telescopes, Sensors, Satellite communications, Astronomical imaging, Laser communications, Optical communications, Data communications, Scintillation

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Proceedings Article | 25 September 2017 Open Access

Sota optical downlinks to DLR’s optical ground stations

Christian Fuchs, Dimitar Kolev, Florian Moll, Amita Shrestha, Martin Brechtelsbauer, Fabian Rein, Christopher Schmidt, Maki Akioka, Yasushi Munemasa, Hideki Takenaka, Morio Toyoshima

Proceedings Volume 10562, 1056247 (2017) https://doi.org/10.1117/12.2296107

KEYWORDS: Space telescopes, Telescopes, Satellites, Cameras, Astronomical imaging, Optical tracking, Sensors, Optical communications, Satellite communications, Transponders

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Proceedings Article | 25 September 2017 Open Access

Development of a breadboard model of space laser communication terminal for optical feeder links from Geo

T. Fuse, M. Akioka, D. Kolev, Y. Koyama, T. Kubo-oka, H. Kunimori, K. Suzuki, H. Takenaka, Y. Munemasa, M. Toyoshima

Proceedings Volume 10562, 105622X (2017) https://doi.org/10.1117/12.2296224

KEYWORDS: Laser communications, Satellites, Optics manufacturing, Satellite communications, Data communications, Astronomical imaging, Optical communications, Aerospace engineering, Communication and information technologies, Manufacturing

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Proceedings Article | 25 September 2017 Open Access

On-orbit evaluation of satellite-ground laser communication experiment using small optical transponder (SOTA) equipment –Optical Antenna

Yasushi Munemasa, Maki Akioka, Yoshisada Koyama, Hiroo Kunimori, Morio Toyoshima

Proceedings Volume 10562, 1056249 (2017) https://doi.org/10.1117/12.2296176

KEYWORDS: Satellites, Satellite communications, Optical antennas, Antennas, Laser communications, Optical communications, Transmitters, Sensors, Atmospheric optics, Astronomical imaging

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Proceedings Article | 15 March 2016 Paper

Telecom and scintillation first data analysis for DOMINO: laser communication between SOTA, onboard SOCRATES satellite, and MEO optical ground station

D.-H. Phung, E. Samain, N. Maurice, D. Albanesse, H. Mariey, M. Aimar, G. M. Lagarde, G. Artaud, J.-L. Issler, N. Vedrenne, M.-T. Velluet, M. Toyoshima, M. Akioka, D. Kolev, Y. Munemasa, H. Takenaka, N. Iwakiri

Proceedings Volume 9739, 973909 (2016) https://doi.org/10.1117/12.2218524

KEYWORDS: Satellites, Telescopes, Sensors, Zoom lenses, Doppler effect, Clouds, Scintillation, Photonic integrated circuits, Modulation, Space telescopes

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Proceedings Article | 15 March 2016 Paper

In-orbit verification of small optical transponder (SOTA): evaluation of satellite-to-ground laser communication links

Hideki Takenaka, Yoshisada Koyama, Maki Akioka, Dimitar Kolev, Naohiko Iwakiri, Hiroo Kunimori, Alberto Carrasco-Casado, Yasushi Munemasa, Eiji Okamoto, Morio Toyoshima

Proceedings Volume 9739, 973903 (2016) https://doi.org/10.1117/12.2214461

KEYWORDS: Free space optics, Satellites, Transponders, Satellite communications, Optical communications, Laser communications, Atmospheric propagation, Error analysis, Forward error correction, Sensors, Optical design, Atmospheric optics

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Proceedings Article | 6 March 2014 Paper

Introduction of a terrestrial free-space optical communications network facility: IN-orbit and Networked Optical ground stations experimental Verification Advanced testbed (INNOVA)

Morio Toyoshima, Yasushi Munemasa, Hideki Takenaka, Yoshihisa Takayama, Yoshisada Koyama, Hiroo Kunimori, Toshihiro Kubooka, Kenji Suzuki, Shinichi Yamamoto, Shinichi Taira, Hiroyuki Tsuji, Isao Nakazawa, Maki Akioka

Proceedings Volume 8971, 89710R (2014) https://doi.org/10.1117/12.2044181

KEYWORDS: Optical communications, Free space optical communications, Optical networks, Data communications, Satellites, Free space optics, Satellite communications, Telecommunications, Data centers, Control systems

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Showing 5 of 16 publications

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