A conceptual design study for Subaru ULTIMATE GLAO

Rigaut, François; Minowa, Yosuke; Akiyama, Masayuki; Ono, Yoshito; Korkiakoski, Visa; Herrald, Nick; Gausachs, Gaston; Clergeon, Christophe; Wang, Shiang‐Yu; d’Orgeville, Céline; Davies, Jordan; Koyama, Yusei; Iwata, Ikuru; Kodama, Tadayuki; Motohara, Kentaro; Hayano, Yutaka; Tanaka, Ichi; Hattori, Takashi; Yoshida, Michitoshi

doi:10.1117/12.2314085

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…a field flattener lens) allow these large corrected fields to be obtained. The Subaru, 16 and Keck 17 telescopes on Maunakea are developing or are studying GLAO systems for their telescopes. Performance simulations 17 have been developed to show that a GLAO system on Keck will improve the FWHM by 1.5x for visible (500 nm) and 2x for NIR (1.5 µm) observations.…”

Section: Ground Layer Correctionmentioning

confidence: 99%

Developing adaptive secondary mirror concepts for the APF and W.M. Keck Observatory based on HVR technology

Hinz¹,

Bowens-Rubin²,

Baranec³

et al. 2020

Adaptive Optics Systems VII

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An Adaptive secondary mirror (ASM) allows for the integration of adaptive optics (AO) into the telescope itself. Adaptive secondary mirrors, based on hybrid variable reluctance (HVR) actuator technology, developed by TNO, provide a promising path to telescope-integrated AO. HVR actuators have the advantage of allowing mirrors that are stiffer, more power efficient, and potentially less complex than similar, voice-coil based ASM's. We are exploring the application of this technology via a laboratory testbed that will validate the technical approach. In parallel, we are developing conceptual designs for ASMs at several telescopes including the Automated Planet Finder Telescope (APF) and for Keck Observatory. An ASM for APF has the potential to double the light through the slit for radial velocity measurements, and dramatically improved the image stability. An ASM for WMKO enables ground layer AO correction and lower background infrared AO observations, and provides for more flexible deployment of instruments via the ability to adjust the location of the Cassegrain focus.

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Section: Ground Layer Correctionmentioning

confidence: 99%

Developing adaptive secondary mirror concepts for the APF and W.M. Keck Observatory based on HVR technology

Hinz¹,

Bowens-Rubin²,

Baranec³

et al. 2020

Adaptive Optics Systems VII

View full text Add to dashboard Cite

show abstract

“…More details of the GLAO conceptual design is presented in the paper. 22 The conceptual design review of the GLAO system is planed in the early October 2018. In parallel, technical developments and demonstrations for the subsystems of the GLAO system are on-going through the AO188 upgrades and the ULTIMATE-Start project.…”

Section: Ultimate-subarumentioning

confidence: 99%

On-going and future AO activities on Subaru Telescope

Ono

Minowa

Clergeon

et al. 2018

Adaptive Optics Systems VI

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This paper presents the overview of on-going and future adaptive optics (AO) activities at the Subaru telescope on the top of Maunakea in Hawaii. Currently, two AO systems are running at the Subaru telescope: AO188, a facility single-conjugate AO system with a bimorph deformable mirror and a curvature wavefront sensor with 188 elements, and SCExAO, an additional extreme AO system operating behind AO188 and specialized for exoplanet sciences. We recently started AO188 upgrade project to improve its performance for the next 5-10 years, which will also help improving SCExAO performance. These upgrades are in line with a development for the ULTIMATE-Subaru ground layer AO system.

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Current status of the laser guide star upgrade at Subaru Telescope

Mieda

Tanaka

Wung

et al. 2018

Adaptive Optics Systems VI

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We report the current status of the laser guide star upgrade at Subaru Telescope with a new, more powerful TOPTICA/MPBC laser. While we recycle many of our existing components, such as laser launch telescope, we need to design a new mirror-based laser relay system to replace the current fiber-based relay to accommodate the high power beam. The laser unit has been delivered to Subaru office in March 2018 and installed in a testing lab in June 2018. We describe the preliminary design and its requirements and report future plans. This upgrade will not only improve our current adaptive optics system but also be the first step toward the future laser tomography and ground layer adaptive optics system at Subaru Telescope.

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A conceptual design study for Subaru ULTIMATE GLAO

Cited by 7 publications

References 10 publications

Developing adaptive secondary mirror concepts for the APF and W.M. Keck Observatory based on HVR technology

Developing adaptive secondary mirror concepts for the APF and W.M. Keck Observatory based on HVR technology

On-going and future AO activities on Subaru Telescope

Current status of the laser guide star upgrade at Subaru Telescope

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