Design of laser system for subaru LGS AO

Yutaka Hayano; Yoshihiko Saito; Norihito Saito; Kazuyuki Akagawa; Yukiko Kamata; Tomio Kanzawa; Tomio Kurakami; Naruhisa Takato; Steve Colley; Michael Eldred; Thomas Kane; Olivier Guyon; Shin Oya; Makoto Watanabe; Masayuki Hattori; Taras Golota; Matthew Dinkins; Naoto Kobayashi; Yousuke Minowa; Miwa Goto; Nobuo Arimoto; Satoshi Wada; Hideki Takami; Masanori Iye

doi:10.1117/12.551015

Design of laser system for subaru LGS AO

Yutaka Hayano, Yoshihiko Saito, Norihito Saito, Kazuyuki Akagawa, Yukiko Kamata, Tomio Kanzawa, Tomio Kurakami, Naruhisa Takato, Steve Colley, Michael Eldred, Thomas Kane, Olivier Guyon, Shin Oya, Makoto Watanabe, Masayuki Hattori, Taras Golota, Matthew Dinkins, Naoto Kobayashi, Yousuke Minowa, Miwa GotoNobuo Arimoto, Satoshi Wada, Hideki Takami, Masanori Iye

Research output: Contribution to journal › Conference article › peer-review

26 Scopus citations

Abstract

We present the development status of the laser system for Subaru Laser Guide Star Adaptive Optics System. We are manufacturing the quasi-continuous-wave sum frequency laser as a prototype. The optical efficiency of sum frequency generation normalized by the mode-locked fundamental YAG (1064 nm) laser output power is achieved to be 14 % using the non-linear crystal, periodically poled potassium titanyl phosphate (PPKTP). Output power at sodium D2 line was about 260 mW. The optical relay fiber and the laser launching telescope are also described in this paper. For the optical relay fiber, we are testing an index guided photonic crystal fiber (PCF), whose core material is filled by fused silica, and whose clad has close-packed air holes in two dimension. The coupling efficiency was evaluated as about 80 % using 1mW He-Ne laser. We introduce the design of laser launching telescope (LLT), which is a copy of VLT laser launching telescope, and the interface to the Subaru Telescope.

Original language	English (US)
Article number	118
Pages (from-to)	1088-1095
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5490
Issue number	PART 3
DOIs	https://doi.org/10.1117/12.551015
State	Published - 2004
Externally published	Yes
Event	Advancements in Adaptive Optics - Glasgow, United Kingdom Duration: Jun 21 2004 → Jun 25 2004

Keywords

Adaptive optics
Laser guide star
Photonic crystal fiber
Subaru telescope
Sum-frequency laser

ASJC Scopus subject areas

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

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10.1117/12.551015

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Hayano, Y., Saito, Y., Saito, N., Akagawa, K., Kamata, Y., Kanzawa, T., Kurakami, T., Takato, N., Colley, S., Eldred, M., Kane, T., Guyon, O., Oya, S., Watanabe, M., Hattori, M., Golota, T., Dinkins, M., Kobayashi, N., Minowa, Y., ... Iye, M. (2004). Design of laser system for subaru LGS AO. Proceedings of SPIE - The International Society for Optical Engineering, 5490(PART 3), 1088-1095. Article 118. https://doi.org/10.1117/12.551015

Hayano, Y, Saito, Y, Saito, N, Akagawa, K, Kamata, Y, Kanzawa, T, Kurakami, T, Takato, N, Colley, S, Eldred, M, Kane, T, Guyon, O, Oya, S, Watanabe, M, Hattori, M, Golota, T, Dinkins, M, Kobayashi, N, Minowa, Y, Goto, M, Arimoto, N, Wada, S, Takami, H & Iye, M 2004, 'Design of laser system for subaru LGS AO', Proceedings of SPIE - The International Society for Optical Engineering, vol. 5490, no. PART 3, 118, pp. 1088-1095. https://doi.org/10.1117/12.551015

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abstract = "We present the development status of the laser system for Subaru Laser Guide Star Adaptive Optics System. We are manufacturing the quasi-continuous-wave sum frequency laser as a prototype. The optical efficiency of sum frequency generation normalized by the mode-locked fundamental YAG (1064 nm) laser output power is achieved to be 14 % using the non-linear crystal, periodically poled potassium titanyl phosphate (PPKTP). Output power at sodium D2 line was about 260 mW. The optical relay fiber and the laser launching telescope are also described in this paper. For the optical relay fiber, we are testing an index guided photonic crystal fiber (PCF), whose core material is filled by fused silica, and whose clad has close-packed air holes in two dimension. The coupling efficiency was evaluated as about 80 % using 1mW He-Ne laser. We introduce the design of laser launching telescope (LLT), which is a copy of VLT laser launching telescope, and the interface to the Subaru Telescope.",

keywords = "Adaptive optics, Laser guide star, Photonic crystal fiber, Subaru telescope, Sum-frequency laser",

author = "Yutaka Hayano and Yoshihiko Saito and Norihito Saito and Kazuyuki Akagawa and Yukiko Kamata and Tomio Kanzawa and Tomio Kurakami and Naruhisa Takato and Steve Colley and Michael Eldred and Thomas Kane and Olivier Guyon and Shin Oya and Makoto Watanabe and Masayuki Hattori and Taras Golota and Matthew Dinkins and Naoto Kobayashi and Yousuke Minowa and Miwa Goto and Nobuo Arimoto and Satoshi Wada and Hideki Takami and Masanori Iye",

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T1 - Design of laser system for subaru LGS AO

AU - Hayano, Yutaka

AU - Saito, Yoshihiko

AU - Saito, Norihito

AU - Akagawa, Kazuyuki

AU - Kamata, Yukiko

AU - Kanzawa, Tomio

AU - Kurakami, Tomio

AU - Takato, Naruhisa

AU - Colley, Steve

AU - Eldred, Michael

AU - Kane, Thomas

AU - Guyon, Olivier

AU - Oya, Shin

AU - Watanabe, Makoto

AU - Hattori, Masayuki

AU - Golota, Taras

AU - Dinkins, Matthew

AU - Kobayashi, Naoto

AU - Minowa, Yousuke

AU - Goto, Miwa

AU - Arimoto, Nobuo

AU - Wada, Satoshi

AU - Takami, Hideki

AU - Iye, Masanori

PY - 2004

Y1 - 2004

N2 - We present the development status of the laser system for Subaru Laser Guide Star Adaptive Optics System. We are manufacturing the quasi-continuous-wave sum frequency laser as a prototype. The optical efficiency of sum frequency generation normalized by the mode-locked fundamental YAG (1064 nm) laser output power is achieved to be 14 % using the non-linear crystal, periodically poled potassium titanyl phosphate (PPKTP). Output power at sodium D2 line was about 260 mW. The optical relay fiber and the laser launching telescope are also described in this paper. For the optical relay fiber, we are testing an index guided photonic crystal fiber (PCF), whose core material is filled by fused silica, and whose clad has close-packed air holes in two dimension. The coupling efficiency was evaluated as about 80 % using 1mW He-Ne laser. We introduce the design of laser launching telescope (LLT), which is a copy of VLT laser launching telescope, and the interface to the Subaru Telescope.

AB - We present the development status of the laser system for Subaru Laser Guide Star Adaptive Optics System. We are manufacturing the quasi-continuous-wave sum frequency laser as a prototype. The optical efficiency of sum frequency generation normalized by the mode-locked fundamental YAG (1064 nm) laser output power is achieved to be 14 % using the non-linear crystal, periodically poled potassium titanyl phosphate (PPKTP). Output power at sodium D2 line was about 260 mW. The optical relay fiber and the laser launching telescope are also described in this paper. For the optical relay fiber, we are testing an index guided photonic crystal fiber (PCF), whose core material is filled by fused silica, and whose clad has close-packed air holes in two dimension. The coupling efficiency was evaluated as about 80 % using 1mW He-Ne laser. We introduce the design of laser launching telescope (LLT), which is a copy of VLT laser launching telescope, and the interface to the Subaru Telescope.

KW - Adaptive optics

KW - Laser guide star

KW - Photonic crystal fiber

KW - Subaru telescope

KW - Sum-frequency laser

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ER -

Design of laser system for subaru LGS AO

Abstract

Keywords

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