Dr. Seiji Kawamura Profile

Dr. Seiji Kawamura

at National Astronomical Observatory of Japan

SPIE Involvement:

Author

SPIE Journal Paper | 1 March 2009

Comparison of three semiconductor laser systems for gravitational wave detection

Tomoyuki Uehara, Akira Sato, Shinya Maehara, Toshiya Nimonji, Takashi Sato, Masashi Ohkawa, Takeo Maruyama, Seiji Kawamura

OE, Vol. 48, Issue 03, 034302, (March 2009) https://doi.org/10.1117/12.10.1117/1.3089887

KEYWORDS: Rubidium, Modulation, Semiconductor lasers, Signal detection, Laser stabilization, Magnetism, Absorption spectroscopy, Absorption, Avalanche photodetectors, Laser systems engineering

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Proceedings Article | 24 February 2009 Paper

Oscillation frequency stabilization of a semiconductor laser by an indirect modulation method using the Faraday effect

Akira Sato, Shinya Maehara, Tomoyuki Uehara, Hideaki Arai, Takashi Sato, Tadashi Tamura, Masashi Ohkawa, Seiji Kawamura

Proceedings Volume 7211, 72110A (2009) https://doi.org/10.1117/12.808803

KEYWORDS: Modulation, Semiconductor lasers, Magnetism, Absorption, Laser stabilization, Signal detection, Rubidium, Absorption spectroscopy, Gadolinium, Polarization

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Proceedings Article | 12 July 2008 Paper

Frequency stabilization of semiconductor lasers for onboard interferometers using both Rb-saturated absorption profiles and double-optical feedback systems

K. Nakano, S. Maehara, M. Yanagisawa, A. Sato, K. Doi, T. Sato, M. Ohkawa, T. Maruyama, S. Kawamura

Proceedings Volume 7010, 701047 (2008) https://doi.org/10.1117/12.788681

KEYWORDS: Absorption, Rubidium, Semiconductor lasers, Avalanche photodetectors, Absorption spectroscopy, Laser stabilization, Mirrors, Gadolinium, Signal detection, Diodes

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Proceedings Article | 22 February 2008 Paper

Semiconductor laser frequency-stabilization: influence of multi-position temperature controls

M. Yanagisawa, K. Nakano, S. Maehara, T. Sato, M. Ohkawa, T. Maruyama, S. Kawamura

Proceedings Volume 6889, 688917 (2008) https://doi.org/10.1117/12.761595

KEYWORDS: Control systems, Absorption, Rubidium, Semiconductor lasers, Laser stabilization, Gadolinium, Absorption spectroscopy, Signal detection, Doppler effect, Temperature metrology

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Proceedings Article | 24 January 2008 Paper

Frequency stabilization of a semiconductor laser using both Rb saturated absorption profiles and double optical feedback systems

K. Nakano, S. Maehara, M. Yanagisawa, K. Doi, T. Sato, M. Ohkawa, T. Maruyama, S. Kawamura

Proceedings Volume 6829, 68290R (2008) https://doi.org/10.1117/12.756173

KEYWORDS: Rubidium, Absorption, Semiconductor lasers, Laser stabilization, Absorption spectroscopy, Mirrors, Gadolinium, Doppler effect, Signal detection, Chemical species

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Proceedings Article | 24 January 2008 Paper

Analytical discussion of semiconductor lasers for gravitational-wave detection

T. Uehara, A. Sato, T. Sato, M. Ohkawa, T. Maruyama, S. Kawamura

Proceedings Volume 6829, 68291H (2008) https://doi.org/10.1117/12.756222

KEYWORDS: Modulation, Magnetism, Signal detection, Semiconductor lasers, Laser stabilization, Optical filters, Interferometers, Absorption, Optical amplifiers, Polarization

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Proceedings Article | 22 March 2007 Paper

Laser diode frequency stabilization by means of optical feedback and the magneto-optical effect

T. Uehara, S. Maehara, T. Nimonji, T. Sato, M. Ohkawa, T. Maruyama, S. Kawamura

Proceedings Volume 6468, 64680D (2007) https://doi.org/10.1117/12.698306

KEYWORDS: Modulation, Semiconductor lasers, Magnetism, Laser stabilization, Signal detection, Absorption, Rubidium, Polarization, Avalanche photodetectors, Satellites

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Proceedings Article | 22 March 2007 Paper

Rb-saturated-absorption-profile-based enhancement of semiconductor laser frequency stability

K. Nakano, S. Maehara, M. Yanagisawa, Y. Sekiya, T. Sato, M. Ohkawa, T. Maruyama, S. Kawamura

Proceedings Volume 6468, 64680C (2007) https://doi.org/10.1117/12.698300

KEYWORDS: Semiconductor lasers, Modulation, Absorption, Signal detection, Rubidium, Diodes, Laser stabilization, Absorption spectroscopy, Mirrors, Fabry–Perot interferometers

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Proceedings Article | 28 February 2006 Paper

Frequency stabilization of laser diode light sources in satellite-to-satellite laser interferometers

S. Maehara, Y. Kurosaki, T. Sato, M. Ohkawa, T. Maruyama, T. Yoshino, H. Kunimori, M. Hosokawa, H. Ito, Y. Li, S. Nagano, S. Kawamura

Proceedings Volume 6115, 611529 (2006) https://doi.org/10.1117/12.645751

KEYWORDS: Modulation, Laser stabilization, Semiconductor lasers, Absorption, Rubidium, Magnetism, Signal detection, Satellites, Interferometers, Absorption spectroscopy

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Proceedings Article | 23 March 2005 Paper

Oscillation frequency stabilization of a semiconductor laser using the Faraday effect of Rb absorption lines and the double optical feedback

Hiromichi Kobayashi, Toshiya Nimonji, Shinya Maehara, Takashi Sato, Masashi Ohkawa, Takeo Maruyama, Taizoh Yoshino, Hiroo Kunimori, Mizuhiko Hosokawa, Hiroyuki Ito, Ying Li, Shigeo Nagano, Seiji Kawamura

Proceedings Volume 5710, (2005) https://doi.org/10.1117/12.590396

KEYWORDS: Semiconductor lasers, Laser stabilization, Rubidium, Absorption, Modulation, Magnetism, Signal detection, Satellites, Polarization, Laser optics

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Proceedings Article | 20 January 2005 Paper

Oscillation frequency stabilization of a diode laser for the laser interferometer in a satellite-to-satellite tracking system

Shinya Maehara, Hiromichi Kobayashi, Takashi Sato, Masashi Ohkawa, Takeo Maruyama, Taizoh Yoshino, Hiroo Kunimori, Mizuhiko Hosokawa, Hiroyuki Ito, Ying Li, Shigeo Nagano, Seiji Kawamura

Proceedings Volume 5628, (2005) https://doi.org/10.1117/12.576544

KEYWORDS: Semiconductor lasers, Laser stabilization, Satellites, Magnetism, Modulation, Rubidium, Absorption, Signal detection, Absorption spectroscopy, Interferometers

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Proceedings Article | 29 September 2004 Paper

Sensing and control of the advanced LIGO optical configuration

Osamu Miyakawa, Seiji Kawamura, Benjamin Abbott, Rolf Bork, Peter Fritschel, Lisa Goggin, Jay Heefner, Alexander Ivanov, Fumiko Kawazoe, Conor Mow-Lowry, Alexei Ourjoumtsev, Sihori Sakata, Michael Smith, Kenneth Strain, Robert Taylor, Dennis Ugolini, Stephen Vass, Robert Ward, Alan Weinstein

Proceedings Volume 5500, (2004) https://doi.org/10.1117/12.552406

KEYWORDS: Demodulation, Interferometers, LIGO, Prototyping, Surface plasmons, Modulation, Mirrors, Scanning electron microscopy, Sensors, Control systems

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Showing 5 of 12 publications

Conference Committee Involvement (1)

Gravitational Wave and Particle Astrophysics Detectors

23 June 2004 | Glasgow, United Kingdom

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