Status of Subaru laser guide star AO system

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Status of Subaru laser guide star AO system

Takami, Hideki / Colley, Stephen / Dinkins, Matt / Eldred, Michael / Guyon, Olivier / Golota, Taras / Hattori, Masayuki / Hayano, Yutaka / Ito, Meguru / Iye, Masanori / ... [more]

Abstract

The laser guide star adaptive optics (AO188) system for Subaru Telescope is presented. The system will be installed at the IR Nasmyth platform of Subaru 8 m telescope, whereas the current AO system with 36 elements is operating at the Cassegrain focus. The new AO system has a 188 element wavefront curvature sensor with photon counting APD modules and 188 element bimorph mirror. The laser guide star system has a 4.5 W solid state sum-frequency laser on the Nasmyth platform. The laser launching telescope with 50 cm aperture will be installed at behind the secondary mirror. The laser beam will be transferred to the laser launching telescope using photonic crystal single mode fiber cable. The instrument with the AO system is IRCS, infrared camera and spectrograph which has been used for Cassegrain AO system and new instrument, HiCIAO, high dynamic range infrared camera for exsolar planet detection. The first light of the AO system is planned in 2006.

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Document information

Title :

Status of Subaru laser guide star AO system

Contributors:

Takami, Hideki (author) / Colley, Stephen (author) / Dinkins, Matt (author) / Eldred, Michael (author) / Guyon, Olivier (author) / Golota, Taras (author) / Hattori, Masayuki (author) / Hayano, Yutaka (author) / Ito, Meguru (author) / Iye, Masanori (author)

Conference:

Advances in Adaptive Optics II ; 2006 ; Orlando,Florida ,United States

Published in:

Proc. SPIE ; 6272

Publication date :

2006-06-27

ISBN :

9780819463371

ISSN :

0277-786X

DOI :

https://doi.org/10.1117/12.670568