The performance of the laser guide star system for the Subaru Telescope

Yoshihiko Saito; Yutaka Hayano; Meguru Ito; Yosuke Minowa; Sebastian Egner; Shin Oya; Makoto Watanabe; Masayuki Hattori; Vincent Garrei; Kazuyuki Akagawa; Olivier Guyon; Stephen Colley; Taras Golota; Norihito Saito; Akira Takazawa; Mayumi Ito; Hideki Takami; Satoshi Wada; Masanori Iye

doi:10.1117/12.856484

The performance of the laser guide star system for the Subaru Telescope

Yoshihiko Saito, Yutaka Hayano, Meguru Ito, Yosuke Minowa, Sebastian Egner, Shin Oya, Makoto Watanabe, Masayuki Hattori, Vincent Garrei, Kazuyuki Akagawa, Olivier Guyon, Stephen Colley, Taras Golota, Norihito Saito, Akira Takazawa, Mayumi Ito, Hideki Takami, Satoshi Wada, Masanori Iye

Optical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

We are developing a laser guide star (LGS) system for the 188-elements Adaptive Optics system (A0188) of the Subaru telescope. In this paper we describe the results of the performance tests of the LGS system. The beam that excites sodium atoms at 90 km altitude of the LGS is generated by the following sequence. The source of the beam is a quasi-CW mode locked sum-frequency generating 589 nm laser. This laser beam propagates through a diagnostics system for measuring the wavelength and the beam quality. Then it couples into a solidcore photonic crystal fiber cable for transmitting the beam to a telescope for launching the beam (LLT: Laser Launching Telescope). The output beam from this fiber cable is collimated by the optics mounted on the LLT. This collimated beam is expanded by the LLT and launched into the sky. We executed several engineering observations of the LGS system from 2009 for confirming the performance of all the components in this sequence. We also report the quality of the LGS.

Original language	English (US)
Title of host publication	Adaptive Optics Systems II
Edition	PART 1
DOIs	https://doi.org/10.1117/12.856484
State	Published - 2010
Event	Adaptive Optics Systems II - San Diego, CA, United States Duration: Jun 27 2010 → Jul 2 2010

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Number	PART 1
Volume	7736
ISSN (Print)	0277-786X

Other

Other	Adaptive Optics Systems II
Country/Territory	United States
City	San Diego, CA
Period	6/27/10 → 7/2/10

Keywords

Adaptive optics
Laser guide star
Sodium laser

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.856484

Cite this

Saito, Y., Hayano, Y., Ito, M., Minowa, Y., Egner, S., Oya, S., Watanabe, M., Hattori, M., Garrei, V., Akagawa, K., Guyon, O., Colley, S., Golota, T., Saito, N., Takazawa, A., Ito, M., Takami, H., Wada, S., & Iye, M. (2010). The performance of the laser guide star system for the Subaru Telescope. In Adaptive Optics Systems II (PART 1 ed.). [773653] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7736, No. PART 1). https://doi.org/10.1117/12.856484

Saito, Y, Hayano, Y, Ito, M, Minowa, Y, Egner, S, Oya, S, Watanabe, M, Hattori, M, Garrei, V, Akagawa, K, Guyon, O, Colley, S, Golota, T, Saito, N, Takazawa, A, Ito, M, Takami, H, Wada, S & Iye, M 2010, The performance of the laser guide star system for the Subaru Telescope. in Adaptive Optics Systems II. PART 1 edn, 773653, Proceedings of SPIE - The International Society for Optical Engineering, no. PART 1, vol. 7736, Adaptive Optics Systems II, San Diego, CA, United States, 6/27/10. https://doi.org/10.1117/12.856484

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abstract = "We are developing a laser guide star (LGS) system for the 188-elements Adaptive Optics system (A0188) of the Subaru telescope. In this paper we describe the results of the performance tests of the LGS system. The beam that excites sodium atoms at 90 km altitude of the LGS is generated by the following sequence. The source of the beam is a quasi-CW mode locked sum-frequency generating 589 nm laser. This laser beam propagates through a diagnostics system for measuring the wavelength and the beam quality. Then it couples into a solidcore photonic crystal fiber cable for transmitting the beam to a telescope for launching the beam (LLT: Laser Launching Telescope). The output beam from this fiber cable is collimated by the optics mounted on the LLT. This collimated beam is expanded by the LLT and launched into the sky. We executed several engineering observations of the LGS system from 2009 for confirming the performance of all the components in this sequence. We also report the quality of the LGS.",

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author = "Yoshihiko Saito and Yutaka Hayano and Meguru Ito and Yosuke Minowa and Sebastian Egner and Shin Oya and Makoto Watanabe and Masayuki Hattori and Vincent Garrei and Kazuyuki Akagawa and Olivier Guyon and Stephen Colley and Taras Golota and Norihito Saito and Akira Takazawa and Mayumi Ito and Hideki Takami and Satoshi Wada and Masanori Iye",

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AU - Saito, Yoshihiko

AU - Hayano, Yutaka

AU - Ito, Meguru

AU - Minowa, Yosuke

AU - Egner, Sebastian

AU - Oya, Shin

AU - Watanabe, Makoto

AU - Hattori, Masayuki

AU - Garrei, Vincent

AU - Akagawa, Kazuyuki

AU - Guyon, Olivier

AU - Colley, Stephen

AU - Golota, Taras

AU - Saito, Norihito

AU - Takazawa, Akira

AU - Ito, Mayumi

AU - Takami, Hideki

AU - Wada, Satoshi

AU - Iye, Masanori

PY - 2010

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N2 - We are developing a laser guide star (LGS) system for the 188-elements Adaptive Optics system (A0188) of the Subaru telescope. In this paper we describe the results of the performance tests of the LGS system. The beam that excites sodium atoms at 90 km altitude of the LGS is generated by the following sequence. The source of the beam is a quasi-CW mode locked sum-frequency generating 589 nm laser. This laser beam propagates through a diagnostics system for measuring the wavelength and the beam quality. Then it couples into a solidcore photonic crystal fiber cable for transmitting the beam to a telescope for launching the beam (LLT: Laser Launching Telescope). The output beam from this fiber cable is collimated by the optics mounted on the LLT. This collimated beam is expanded by the LLT and launched into the sky. We executed several engineering observations of the LGS system from 2009 for confirming the performance of all the components in this sequence. We also report the quality of the LGS.

AB - We are developing a laser guide star (LGS) system for the 188-elements Adaptive Optics system (A0188) of the Subaru telescope. In this paper we describe the results of the performance tests of the LGS system. The beam that excites sodium atoms at 90 km altitude of the LGS is generated by the following sequence. The source of the beam is a quasi-CW mode locked sum-frequency generating 589 nm laser. This laser beam propagates through a diagnostics system for measuring the wavelength and the beam quality. Then it couples into a solidcore photonic crystal fiber cable for transmitting the beam to a telescope for launching the beam (LLT: Laser Launching Telescope). The output beam from this fiber cable is collimated by the optics mounted on the LLT. This collimated beam is expanded by the LLT and launched into the sky. We executed several engineering observations of the LGS system from 2009 for confirming the performance of all the components in this sequence. We also report the quality of the LGS.

KW - Adaptive optics

KW - Laser guide star

KW - Sodium laser

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The performance of the laser guide star system for the Subaru Telescope

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Keywords

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