Preliminary experiments of prototype laser guide star system for the Subaru telescope

Yutaka Hayano; Hideki Takami; Naruhisa Takato; Tomio Kanzawa; Yukiko Kamata; Koji Nakashima; Masanori Iye; Shin Oya

doi:10.1117/12.390339

7 July 2000 Preliminary experiments of prototype laser guide star system for the Subaru telescope

Yutaka Hayano, Hideki Takami, Naruhisa Takato, Tomio Kanzawa, Yukiko Kamata, Koji Nakashima, Masanori Iye, Shin Oya

Proceedings Volume 4007, Adaptive Optical Systems Technology; (2000) https://doi.org/10.1117/12.390339
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

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.

Citation Download Citation

Yutaka Hayano, Hideki Takami, Naruhisa Takato, Tomio Kanzawa, Yukiko Kamata, Koji Nakashima, Masanori Iye, and Shin Oya "Preliminary experiments of prototype laser guide star system for the Subaru telescope", Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000); https://doi.org/10.1117/12.390339

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