Current status of the laser guide star adaptive optic system for Subaru Telescope

Yutaka Hayano; Hideki Takami; Olivier Guyon; Shin Oya; Masayuki Hattori; Yoshihiko Saito; Makoto Watanabe; Naoshi Murakami; Yosuke Minowa; Meguru Ito; Stephen Colley; Michael Eldred; Taras Golota; Matthew Dinkins; Nobunari Kashikawa; Masanori Lye

doi:10.1117/12.789992

Current status of the laser guide star adaptive optic system for Subaru Telescope

Yutaka Hayano, Hideki Takami, Olivier Guyon, Shin Oya, Masayuki Hattori, Yoshihiko Saito, Makoto Watanabe, Naoshi Murakami, Yosuke Minowa, Meguru Ito, Stephen Colley, Michael Eldred, Taras Golota, Matthew Dinkins, Nobunari Kashikawa, Masanori Lye

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

73 Scopus citations

Abstract

The current status and recent results' since last SPIE conference at Orlando in 2006' for the laser guide star adaptive optics system for Subaru Telescope is presented. We had a first light using natural guide star and succeed to launch the sodium laser beam in October 2006. The achieved Strehl ratio on the 10th magnitude star was around 0.5 at K band. We confirmed that the full-width-half-maximum of the stellar point spread function is smaller than 0.1 arcsec even at the 0.9 micrometer wavelehgth. The size of the artificial guide star by the laser beam tuned at the wavelength of 589 nm was estimated to be 10 arcsec. The obtained blurred artificial guide star is caused by the wavefront error on the laser launching telescope. After the first light and first launch' we found that we need to modify and to fix the components' which are temporarily finished. Also components' which were postponed to fabricate after the first light' are required to build newly. All components used by the natural guide star adaptive optics system are finalized recently and we are ready to go on the sky. Next engineering observation is scheduled in August' 2008.

Original language	English (US)
Title of host publication	Adaptive Optics Systems
DOIs	https://doi.org/10.1117/12.789992
State	Published - 2008
Externally published	Yes
Event	Adaptive Optics Systems - Marseille, France Duration: Jun 23 2008 → Jun 26 2008

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7015
ISSN (Print)	0277-786X

Other

Other	Adaptive Optics Systems
Country/Territory	France
City	Marseille
Period	6/23/08 → 6/26/08

Keywords

Adaptive optics
Bimorph mirror
Curvature sensor
Laser guide star
Subaru Telescope

ASJC Scopus subject areas

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

Access to Document

10.1117/12.789992

Cite this

Hayano, Y., Takami, H., Guyon, O., Oya, S., Hattori, M., Saito, Y., Watanabe, M., Murakami, N., Minowa, Y., Ito, M., Colley, S., Eldred, M., Golota, T., Dinkins, M., Kashikawa, N., & Lye, M. (2008). Current status of the laser guide star adaptive optic system for Subaru Telescope. In Adaptive Optics Systems Article 701510 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7015). https://doi.org/10.1117/12.789992

Hayano, Y, Takami, H, Guyon, O, Oya, S, Hattori, M, Saito, Y, Watanabe, M, Murakami, N, Minowa, Y, Ito, M, Colley, S, Eldred, M, Golota, T, Dinkins, M, Kashikawa, N & Lye, M 2008, Current status of the laser guide star adaptive optic system for Subaru Telescope. in Adaptive Optics Systems., 701510, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7015, Adaptive Optics Systems, Marseille, France, 6/23/08. https://doi.org/10.1117/12.789992

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abstract = "The current status and recent results' since last SPIE conference at Orlando in 2006' for the laser guide star adaptive optics system for Subaru Telescope is presented. We had a first light using natural guide star and succeed to launch the sodium laser beam in October 2006. The achieved Strehl ratio on the 10th magnitude star was around 0.5 at K band. We confirmed that the full-width-half-maximum of the stellar point spread function is smaller than 0.1 arcsec even at the 0.9 micrometer wavelehgth. The size of the artificial guide star by the laser beam tuned at the wavelength of 589 nm was estimated to be 10 arcsec. The obtained blurred artificial guide star is caused by the wavefront error on the laser launching telescope. After the first light and first launch' we found that we need to modify and to fix the components' which are temporarily finished. Also components' which were postponed to fabricate after the first light' are required to build newly. All components used by the natural guide star adaptive optics system are finalized recently and we are ready to go on the sky. Next engineering observation is scheduled in August' 2008.",

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author = "Yutaka Hayano and Hideki Takami and Olivier Guyon and Shin Oya and Masayuki Hattori and Yoshihiko Saito and Makoto Watanabe and Naoshi Murakami and Yosuke Minowa and Meguru Ito and Stephen Colley and Michael Eldred and Taras Golota and Matthew Dinkins and Nobunari Kashikawa and Masanori Lye",

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AU - Hayano, Yutaka

AU - Takami, Hideki

AU - Guyon, Olivier

AU - Oya, Shin

AU - Hattori, Masayuki

AU - Saito, Yoshihiko

AU - Watanabe, Makoto

AU - Murakami, Naoshi

AU - Minowa, Yosuke

AU - Ito, Meguru

AU - Colley, Stephen

AU - Eldred, Michael

AU - Golota, Taras

AU - Dinkins, Matthew

AU - Kashikawa, Nobunari

AU - Lye, Masanori

PY - 2008

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AB - The current status and recent results' since last SPIE conference at Orlando in 2006' for the laser guide star adaptive optics system for Subaru Telescope is presented. We had a first light using natural guide star and succeed to launch the sodium laser beam in October 2006. The achieved Strehl ratio on the 10th magnitude star was around 0.5 at K band. We confirmed that the full-width-half-maximum of the stellar point spread function is smaller than 0.1 arcsec even at the 0.9 micrometer wavelehgth. The size of the artificial guide star by the laser beam tuned at the wavelength of 589 nm was estimated to be 10 arcsec. The obtained blurred artificial guide star is caused by the wavefront error on the laser launching telescope. After the first light and first launch' we found that we need to modify and to fix the components' which are temporarily finished. Also components' which were postponed to fabricate after the first light' are required to build newly. All components used by the natural guide star adaptive optics system are finalized recently and we are ready to go on the sky. Next engineering observation is scheduled in August' 2008.

KW - Adaptive optics

KW - Bimorph mirror

KW - Curvature sensor

KW - Laser guide star

KW - Subaru Telescope

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Current status of the laser guide star adaptive optic system for Subaru Telescope

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