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Proceedings Paper

Preliminary experiments of prototype laser guide star system for the Subaru telescope
Author(s): Yutaka Hayano; Hideki Takami; Naruhisa Takato; Tomio Kanzawa; Yukiko Kamata; Koji Nakashima; Masanori Iye; Shin Oya
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Paper Abstract

Prototype laser guide star system for Subaru telescope has been developed at Communications Research Laboratory (CRL). The laser system comprises two commercially available lasers: a modified continuous wave (CW) dye laser and a 10 W all-solid CW laser of 532 nm wavelength for pumping the dye laser. The natural guide star adaptive optics system for Subaru telescope on Cassegrain focus will be upgraded to a laser guide star adaptive optics system using this laser system. The experiment of transmitting laser beam to the sodium layer is performed at CRL using a 1.5 m telescope. The laser beam is emitted from a 20 cm telescope mounted next to the 1.5 m telescope. A laser guide star is observed by a cooled CCD camera, which is equipped on the Nasmyth platform. We report the preliminary results of the experiment of observing a sodium laser guide star.

Paper Details

Date Published: 7 July 2000
PDF: 6 pages
Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000); doi: 10.1117/12.390339
Show Author Affiliations
Yutaka Hayano, Communications Research Lab. (Japan)
Hideki Takami, National Astronomical Observatory of Japan (United States)
Naruhisa Takato, National Astronomical Observatory of Japan (United States)
Tomio Kanzawa, National Astronomical Observatory of Japan (United States)
Yukiko Kamata, National Astronomical Observatory of Japan (Japan)
Koji Nakashima, National Astronomical Observatory of Japan (Japan)
Masanori Iye, National Astronomical Observatory of Japan (Japan)
Shin Oya, Communications Research Lab. (United States)


Published in SPIE Proceedings Vol. 4007:
Adaptive Optical Systems Technology
Peter L. Wizinowich, Editor(s)

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