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27 June 2006 Status of Subaru laser guide star AO system
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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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hideki Takami, Stephen Colley, Matt Dinkins, Michael Eldred, Olivier Guyon, Taras Golota, Masayuki Hattori, Yutaka Hayano, Meguru Ito, Masanori Iye, Shin Oya, Yoshihiko Saito, and Makoto Watanabe "Status of Subaru laser guide star AO system", Proc. SPIE 6272, Advances in Adaptive Optics II, 62720C (27 June 2006); https://doi.org/10.1117/12.670568
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