Dr. Yoshihisa Takayama Profile

Dr. Yoshihisa Takayama

Senior Researcher at NICT

SPIE Involvement:

Author

Publications (41)

Proceedings Article | 13 December 2020 Paper

The use of random phase patterns composed of huge number of elements for wavefront reconstruction in adaptive optics

Hiroki Yamashita, Yoshihisa Takayama, Yutaka Hayano

Proceedings Volume 11448, 114481Q (2020) https://doi.org/10.1117/12.2561208

KEYWORDS: Liquid crystal on silicon, Wavefront reconstruction, Adaptive optics, Optical components, Wavefronts, Zernike polynomials, LCDs, Matrices, Numerical simulations

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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 | 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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Proceedings Article | 23 February 2012 Paper

Development and evaluation of a digital signal processing for single polarization QPSK modulation format

Kazuomi Endo, Yoichi Hashimoto, Takeyoshi Tanaka, Toru Takamichi, Kiyoshi Fukuchi, Morio Toyoshima, Yoshihisa Takayama

Proceedings Volume 8246, 82460A (2012) https://doi.org/10.1117/12.907905

KEYWORDS: Polarization, Digital signal processing, Receivers, Signal detection, Telecommunications, Free space optical communications, Oscillators, Free space optics, Modulation, Data communications

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Proceedings Article | 23 February 2012 Paper

40-Gbit/s optical free-space transmission experiment using QPSK modulation format

Y. Hashimoto, N. Kamiya, K. Endo, T. Tanaka, S. Nishimura, N. Hashimoto, M. Shimizu, Y. Suzuki, K. Shiratama, M. Toyoshima, Y. Takayama, K. Fukuchi

Proceedings Volume 8246, 82460G (2012) https://doi.org/10.1117/12.907889

KEYWORDS: Free space optics, Free space, Receivers, Forward error correction, Transmitters, Modulation, Optical amplifiers, Transmittance, Free space optical communications, Digital signal processing

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Proceedings Article | 10 February 2012 Paper

Current development status of Small Optical TrAnsponder (SOTA) for satellite-ground laser communications

Yoshihisa Takayama, Morio Toyoshima, Yoshisada Koyama, Hideki Takenaka, Maki Akioka, Koichi Shiratama, Ichiro Mase, Osamu Kawamoto

Proceedings Volume 8246, 824607 (2012) https://doi.org/10.1117/12.913254

KEYWORDS: Satellites, Satellite communications, Laser communications, Transponders, Sensors, Data communications, Modulation, Optical communications, Quantum key distribution, Optical tracking

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Proceedings Article | 22 February 2011 Paper

Optical inter-satellite communication with dynamically reconfigurable optical device using Sn[sub]2[/sub]P[sub]2[/sub]S[sub]6[/sub] crystal

Kaori Nishimaki, Atsushi Okamoto, Tomohiro Fujita, Alexander Grabar, Masanori Takabayashi, Jun Uozumi, Akihisa Tomita, Yoshihisa Takayama

Proceedings Volume 7923, 79230N (2011) https://doi.org/10.1117/12.874428

KEYWORDS: Crystals, Phase conjugation, Reflectivity, Satellites, Telecommunications, Laser crystals, Satellite communications, Diffraction gratings, Optical communications, Receivers

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SPIE Journal Paper | 1 August 2010

In-orbit measurements of spacecraft microvibrations for satellite laser communication links

Morio Toyoshima, Yoshihisa Takayama, Hiroo Kunimori, Takashi Jono, Shiro Yamakawa

OE, Vol. 49, Issue 08, 083604, (August 2010) https://doi.org/10.1117/12.10.1117/1.3482165

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Proceedings Article | 4 May 2010 Paper

Frequency characteristics of atmospheric turbulence in space-to-ground laser links

Morio Toyoshima, Hideki Takenaka, Yozo Shoji, Yoshihisa Takayama

Proceedings Volume 7685, 76850G (2010) https://doi.org/10.1117/12.850149

KEYWORDS: Satellites, Atmospheric turbulence, Optical filters, Satellite communications, Telescopes, Laser communications, Space telescopes, Antennas, Avalanche photodetectors, Atmospheric optics

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Proceedings Article | 26 February 2010 Paper

Low voltage actuator using carbon nanotube to tilt mirror angle

Yoshihisa Takayama, Morio Toyoshima, Toshio Abe

Proceedings Volume 7587, 75870K (2010) https://doi.org/10.1117/12.843538

KEYWORDS: Actuators, Mirrors, Carbon nanotubes, Polymers, Gold, Polymeric actuators, Laser communications, Liquids, Electrodes, Prototyping

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Proceedings Article | 26 February 2010 Paper

Expanded laser communications demonstrations with OICETS and ground stations

Yoshihisa Takayama, Morio Toyoshima, Yozo Shoji, Yoshisada Koyama, Hiroo Kunimori, Minoru Sakaue, Shiro Yamakawa, Yoshiyuki Tashima, Nobuhiro Kura

Proceedings Volume 7587, 75870D (2010) https://doi.org/10.1117/12.845991

KEYWORDS: Satellites, Laser communications, Satellite communications, Aerospace engineering, Communication and information technologies, Communication engineering, Data communications, Atmospheric optics, Sensors, Meteorological satellites

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Proceedings Article | 26 February 2010 Paper

Preliminary results of the OCTL to OICETS optical link experiment (OTOOLE)

Keith Wilson, Joseph Kovalik, Abhijit Biswas, Malcolm Wright, William Roberts, Yoshihisa Takayama, Shiro Yamakawa

Proceedings Volume 7587, 758703 (2010) https://doi.org/10.1117/12.845063

KEYWORDS: Satellites, Telescopes, Receivers, Optical communications, Satellite communications, Laser communications, Sensors, Space telescopes, Modulation, Mirrors

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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 | 24 February 2009 Paper

Research and development activities on space laser communications in NICT

H. Kunimori, Y. Shoji, M. Toyoshima, Y. Takayama

Proceedings Volume 7199, 719904 (2009) https://doi.org/10.1117/12.810089

KEYWORDS: Laser communications, Satellites, Receivers, Optics manufacturing, Satellite communications, Mirrors, Geometrical optics, Telescopes, Telecommunications, Space telescopes

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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 | 25 September 2007 Paper

Observation of atmospheric influence on OICETS inter-orbit laser communication demonstrations

Y. Takayama, T. Jono, Y. Koyama, N. Kura, K. Shiratama, B. Demelenne, Z. Sodnik, A. Bird, K. Arai

Proceedings Volume 6709, 67091B (2007) https://doi.org/10.1117/12.736789

KEYWORDS: Atmospheric optics, Laser communications, Earth's atmosphere, Atmospheric modeling, Sensors, Satellites, Data modeling, Telecommunications, Satellite communications, Channel projecting optics

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Proceedings Article | 25 September 2007 Paper

Data analysis results from the KODEN experiments

Morio Toyoshima, Yoshihisa Takayama, Hiroo Kunimori, Takashi Jono, Katsuyoshi Arai

Proceedings Volume 6709, 67091C (2007) https://doi.org/10.1117/12.737059

KEYWORDS: Scintillation, Satellites, Electroluminescence, Laser communications, Optical communications, Satellite communications, Atmospheric optics, Telecommunications, Telescopes, Aerospace engineering

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Proceedings Article | 17 May 2007 Paper

Splice of photonic crystal fibres by use of double phase-conjugate mirror

Yusuke Nakayama, Atsushi Okamoto, Yoshihisa Takayama, Yutaka Hayano

Proceedings Volume 6588, 658813 (2007) https://doi.org/10.1117/12.722860

KEYWORDS: Phase conjugation, Signal attenuation, Beam propagation method, Crystals, Tolerancing, Laser crystals, Photonic crystal fibers, Mirrors, Diffraction gratings, Optical fibers

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Proceedings Article | 8 May 2007 Paper

Efficient coupling for bidirectional pumping in EDFA with two mutually-pumped phase-conjugate mirrors

Shugo Kano, Atsushi Okamoto, Yoshihisa Takayama, Kunihiro Sato

Proceedings Volume 6582, 65821U (2007) https://doi.org/10.1117/12.722961

KEYWORDS: Diffraction, Phase conjugation, Wavelength division multiplexing, Optical amplifiers, Signal attenuation, Mirrors, Crystals, Optical isolators, Laser crystals, Fiber couplers

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Proceedings Article | 4 May 2007 Paper

Laser beam propagation in ground-to-OICETS laser communication experiments

Morio Toyoshima, Takashi Takahashi, Kenji Suzuki, Shinichi Kimura, Kenichi Takizawa, Toshiaki Kuri, Werner Klaus, Masahiro Toyoda, Hiroo Kunimori, Takashi Jono, Yoshihisa Takayama, Katsuyoshi Arai

Proceedings Volume 6551, 65510A (2007) https://doi.org/10.1117/12.723116

KEYWORDS: Satellites, Scintillation, Satellite communications, Telescopes, Laser communications, Atmospheric optics, Optical communications, Space telescopes, Laser beam propagation, Modulation

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Proceedings Article | 13 February 2007 Paper

Tracking and pointing characteristics of OICETS optical terminal in communication demonstrations with ground stations

Yoshihisa Takayama, Takashi Jono, Morio Toyoshima, Hiroo Kunimori, Dirk Giggenbach, Nicolas Perlot, Markus Knapek, Koichi Shiratama, Junya Abe, Katsuyoshi Arai

Proceedings Volume 6457, 645707 (2007) https://doi.org/10.1117/12.708417

KEYWORDS: Sensors, Optical antennas, Optical communications, Optical tracking, Satellites, Laser communications, Aerospace engineering, Satellite communications, Communication engineering, Sun

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Proceedings Article | 12 February 2007 Paper

Results of the optical downlink experiment KIODO from OICETS satellite to optical ground station Oberpfaffenhofen (OGS-OP)

N. Perlot, M. Knapek, D. Giggenbach, J. Horwath, M. Brechtelsbauer, Y. Takayama, T. Jono

Proceedings Volume 6457, 645704 (2007) https://doi.org/10.1117/12.708413

KEYWORDS: Scintillation, Satellites, Telescopes, Cameras, Clouds, Sensors, Adaptive optics, Aerospace engineering, Optical testing, Free space optical communications

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Proceedings Article | 12 February 2007 Paper

Overview of the inter-orbit and the orbit-to-ground laser communication demonstration by OICETS

Takashi Jono, Yoshihisa Takayama, Koichi Shiratama, Ichiro Mase, Benoit Demelenne, Zoran Sodnik, Aneurin Bird, Morio Toyoshima, Hiroo Kunimori, Dirk Giggenbach, Nicolas Perlot, Markus Knapek, Katsuyoshi Arai

Proceedings Volume 6457, 645702 (2007) https://doi.org/10.1117/12.708864

KEYWORDS: Laser communications, Satellites, Sensors, Satellite communications, Telecommunications, Data communications, Optical tracking, Optical communications, Data centers, Aerospace engineering

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Proceedings Article | 1 September 2006 Paper

Ground-to-OICETS laser communication experiments

Morio Toyoshima, Kenichi Takizawa, Toshiaki Kuri, Werner Klaus, Masahiro Toyoda, Hiroo Kunimori, Takashi Jono, Yoshihisa Takayama, Nobuhiro Kura, Kouichi Ohinata, Katsuyoshi Arai, Koichi Shiratama

Proceedings Volume 6304, 63040B (2006) https://doi.org/10.1117/12.693012

KEYWORDS: Satellites, Optical communications, Laser communications, Satellite communications, Telescopes, Space telescopes, Clouds, Free space optics, Telecommunications, Aerospace engineering

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Proceedings Article | 23 May 2006 Paper

Efficient pump beam coupling in EDFA with two mutually pumped phase conjugate mirrors

Shugo Kano, Atsushi Okamoto, Yoshihisa Takayama, Kunihiro Sato, Hideyuki Kaseda

Proceedings Volume 6193, 61930F (2006) https://doi.org/10.1117/12.662395

KEYWORDS: Optical amplifiers, Crystals, Phase conjugation, Laser crystals, Diffraction, Fiber couplers, Beam splitters, Imaging systems, Mirrors, Wavelength division multiplexing

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Proceedings Article | 25 April 2006 Paper

Optical intersatellite data transmission with phase conjugate mirror for formation flying

Tatsuya Shiratori, Atsushi Okamoto, Yoshihisa Takayama, Terumasa Ito

Proceedings Volume 6187, 618715 (2006) https://doi.org/10.1117/12.662570

KEYWORDS: Signal to noise ratio, Satellites, Phase conjugation, Transmitters, Beam controllers, Receivers, Diffusers, Data transmission, Mirrors, Beam propagation method

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Proceedings Article | 1 March 2006 Paper

OICETS on-orbit laser communication experiments

Takashi Jono, Yoshihisa Takayama, Nobuhiro Kura, Koichi Ohinata, Yoshisada Koyama, Koichi Shiratama, Zoran Sodnik, Benoit Demelenne, Aneurin Bird, Katsuyoshi Arai

Proceedings Volume 6105, 610503 (2006) https://doi.org/10.1117/12.673751

KEYWORDS: Satellites, Sensors, Laser communications, Satellite communications, Telecommunications, Optical communications, Fermium, Frequency modulation, Free space optical communications, Free space optics

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Proceedings Article | 27 February 2006 Paper

A Ulexite-based animation recording system by random reference patterns

Yuko Ishii, Misako Irisawa, Yoshihisa Takayama, Eriko Watanabe, Kashiko Kodate

Proceedings Volume 6136, 61360N (2006) https://doi.org/10.1117/12.650852

KEYWORDS: Multiplexing, Holograms, Information security, Spatial light modulators, Crystals, Holography, Laser crystals, Speckle pattern, Optical storage, Computer security

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SPIE Journal Paper | 1 May 2005

Passive approach to expand the field of view of receivers for free-space laser communications

Yoshihisa Takayama, Werner Klaus, Keisuke Shinohara

OE, Vol. 44, Issue 05, 056003, (May 2005) https://doi.org/10.1117/12.10.1117/1.1911015

KEYWORDS: Crystals, Photonic crystals, Modulation, Radio propagation, Receivers, Dispersion, Free space optical communications, Sensors, Optical engineering, Free space optics

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Proceedings Article | 7 February 2005 Paper

A simple method for holographic recording of images in different polarization states using a fiber bundle with rotary movement

Yoshihisa Takayama, Yumi Okazaki, Tadashi Aruga, Kashiko Kodate

Proceedings Volume 5636, (2005) https://doi.org/10.1117/12.570930

KEYWORDS: Holograms, Polarization, Multiplexing, Holography, Crystals, Image processing, Spatial light modulators, Wavefronts, Multimode fibers, Phase matching

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Proceedings Article | 11 January 2005 Paper

Photorefractive bidirectional connection module with mutual-pumped phase conjugate mirror

Kazumasa Kori, Atsushi Okamoto, Yoshihisa Takayama, Masatoshi Bunsen, Hisatoshi Funakoshi, Terumasa Ito

Proceedings Volume 5642, (2005) https://doi.org/10.1117/12.576080

KEYWORDS: Crystals, Laser crystals, Mirrors, Diffraction, Free space optics, Vertical cavity surface emitting lasers, Phase conjugation, Optical interconnects, Integrated optics, Computing systems

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Proceedings Article | 9 July 2004 Paper

Modified design of photonic crystals with negative refractive behavior to expand the field-of-view of optical receivers

Yoshihisa Takayama, Werner Klaus, Keisuke Shinohara

Proceedings Volume 5360, (2004) https://doi.org/10.1117/12.528211

KEYWORDS: Crystals, Photonic crystals, Radio propagation, Receivers, Sensors, Dispersion, Free space optical communications, Adaptive optics, Finite-difference time-domain method, Free space optics

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Proceedings Article | 29 June 2004 Paper

Design of compact optical setup for hologram multiplexing with a straight arrangement of two prisms

Tomoko Nakayama, Kayo Shimizu, Yumi Okazaki, Eriko Watanabe, Kashiko Kodate, Yoshihisa Takayama, Tadashi Aruga

Proceedings Volume 5290, (2004) https://doi.org/10.1117/12.525682

KEYWORDS: Prisms, Light sources, Holography, Multiplexing, Optical design, Holograms, Data storage, Crystals, Light, Ray tracing

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Proceedings Article | 19 November 2003 Paper

Field-of-view expander for optical receivers exploiting the negative refractive behavior of photonic crystals

Yoshihisa Takayama, Werner Klaus

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.529986

KEYWORDS: Crystals, Photonic crystals, Laser crystals, Beam propagation method, Dispersion, Radio propagation, Receivers, Free space optics, Refractive index, Ray tracing

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Proceedings Article | 3 July 2003 Paper

Study for HDR cross-link for formation flight satellite systems

Nozomu Nishinaga, Yoshihisa Takayama, Takashi Takahashi, Yasuo Ogawa, Toshihiro Kubooka, Hiroaki Umehara

Proceedings Volume 4975, (2003) https://doi.org/10.1117/12.478937

KEYWORDS: Satellites, Satellite communications, Telecommunications, Antennas, Transponders, Switches, Analog electronics, Data communications, Optical communications

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Proceedings Article | 30 August 2002 Paper

Information sharing and exchanging in add/drop optical network by double-phase conjugator

Atsushi Okamoto, Kazumasa Kori, Yoshihisa Takayama, Satoshi Honma

Proceedings Volume 4924, (2002) https://doi.org/10.1117/12.481530

KEYWORDS: Beam controllers, Crystals, Free space optical communications, Phase conjugation, Optical networks, Diffraction gratings, Multiplexing, Laser crystals, Optical communications, Free space optics

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Proceedings Article | 25 April 2002 Paper

Passive and delay-free wavefront correction using photonic crystals in receivers for optical free-space communications

Yoshihisa Takayama, Werner Klaus, Yoshinori Arimoto

Proceedings Volume 4655, (2002) https://doi.org/10.1117/12.463889

KEYWORDS: Photonic crystals, Crystals, Radio propagation, Receivers, Adaptive optics, Dispersion, Sensors, Beam propagation method, Wave propagation, Free space optics

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Proceedings Article | 30 October 2001 Paper

Three-dimensional analysis of code processing in photorefractive holographic memory

Noriyasu Tsuji, Atsushi Okamoto, Yoshihisa Takayama, Takahiko Nakatogawa

Proceedings Volume 4598, (2001) https://doi.org/10.1117/12.447113

KEYWORDS: Diffraction, Image processing, Crystals, Computer programming, Phase conjugation, Holography, Reflectivity, Four wave mixing, Holograms, Image restoration

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Proceedings Article | 2 March 2001 Paper

Photorefractive four-wave mixing for optical image restoration

Yoshihisa Takayama, Atsushi Okamoto, Kenichi Araki

Proceedings Volume 4353, (2001) https://doi.org/10.1117/12.417743

KEYWORDS: Image restoration, Four wave mixing, Phase conjugation, Holograms, Image processing, Fourier transforms, Photography, Image filtering, Electronic filtering, Optical filters

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Proceedings Article | 24 May 2000 Paper

Optical demodulator with photorefractive cross-polarized duplex two-wave mixing

Satoshi Honma, Atsushi Okamoto, Yoshihisa Takayama

Proceedings Volume 4089, (2000) https://doi.org/10.1117/12.386778

KEYWORDS: Phase shifts, Two wave mixing, Crystals, Copper, Diffraction, Refractive index, Transient nonlinear optics, Energy transfer, Demodulation, Quantum efficiency

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Proceedings Article | 7 May 1999 Paper

PRCM and its optical bus application by photorefractive four-wave mixing with cross-polarization pumping

Atsushi Okamoto, Kentaro Watanabe, Hisashi Matsuoka, Yoshihisa Takayama

Proceedings Volume 3740, (1999) https://doi.org/10.1117/12.347715

KEYWORDS: Crystals, Four wave mixing, Switching, Multiplexing, Ferroelectric materials, Phase conjugation, Polarization, Optical testing, Beam controllers, Phase matching

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Showing 5 of 41 publications

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