Deformable mirror technologies at AOA Xinetics

Wirth, Allan; Cavaco, Jeffrey; Bruno, Theresa L.; Ezzo, K.

doi:10.1117/12.2018031

Cited by 27 publications

(20 citation statements)

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“…4.2, and the exit pupil mirror can be implemented using technologies, such as a silicon carbide or carbon fiber reinforced polymer deformable mirror using a surface-parallel actuator array. 56,57 Table 1 summarizes the geometry of the five mirrors that form the main telescope. The primary mirror is composed of 5016 hexagonal segments with a side length of 0.675 m, as shown in Fig.…”

Section: Optical Designmentioning

confidence: 99%

Architecture for in-space robotic assembly of a modular space telescope

Lee

Backes

Burdick

et al. 2016

J. Astron. Telesc. Instrum. Syst

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Abstract. An architecture and conceptual design for a robotically assembled, modular space telescope (RAMST) that enables extremely large space telescopes to be conceived is presented. The distinguishing features of the RAMST architecture compared with prior concepts include the use of a modular deployable structure, a general-purpose robot, and advanced metrology, with the option of formation flying. To demonstrate the feasibility of the robotic assembly concept, we present a reference design using the RAMST architecture for a formation flying 100-m telescope that is assembled in Earth orbit and operated at the Sun-Earth Lagrange Point 2.

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Section: Optical Designmentioning

confidence: 99%

Architecture for in-space robotic assembly of a modular space telescope

Lee

Backes

Burdick

et al. 2016

J. Astron. Telesc. Instrum. Syst

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“…26,27 The ground-layer wavefront sensors (GWSs) are conjugated to ∼100 m above the telescope and drive the adaptive secondary mirrors (ASMs, 672 actuators each), using up to 12 natural stars from an annular 2' to 6' diameter FoV centered on the science field. The high-layer wavefront sensors (HWSs) are conjugated to a high altitude, ∼7100 m above the telescope pupil along the optical axis, and drive the two commercial Xinetics DMs (349 actuators each, hereafter high-altitude DMs) 28 mounted on the LN bench. The HWSs can use up to eight stars in the inner 2' diameter FoV to measure the turbulence.…”

Section: Partial Illumination Issue In the Context Of The Linc-nirvanmentioning

confidence: 99%

Operation of a layer-oriented multiconjugate adaptive optics system in the partial illumination regime

Santhakumari

Arcidiacono

Bertram

et al. 2019

J. Astron. Telesc. Instrum. Syst.

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Multiconjugate adaptive optics (MCAO) promises uniform wide-field atmospheric correction. However, partial illumination of the layers at which the deformable mirrors are conjugated results in incomplete information about the full turbulence field. We report on a working solution to this difficulty for layer-oriented MCAO, including laboratory and on-sky demonstration with the LINC-NIRVANA instrument at the Large Binocular Telescope. This approach has proven to be simple and stable.

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“…The mirror has dimensions of 10 mm × 10 mm, the clear aperture for correction was 8 mm × 8 mm, and the interval size between actuators is 2 mm. However, the typical interval size of piezoceramics actuator array is around 5-7 mm [12][13][14]. To guarantee acceptable correction resolution, a DM with a multireflection waveguide was proposed.…”

Section: Configuration Of a Dm With A Multireflection Waveguidementioning

confidence: 99%

Wavefront correction performed by a deformable mirror of arbitrary actuator pattern within a multireflection waveguide

Huang

Bian

et al. 2014

Appl. Opt.

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The wavefront correction ability of a deformable mirror with a multireflection waveguide was investigated and compared via simulations. By dividing a conventional actuator array into a multireflection waveguide that consisted of single-actuator units, an arbitrary actuator pattern could be achieved. A stochastic parallel perturbation algorithm was proposed to find the optimal actuator pattern for a particular aberration. Compared with conventional an actuator array, the multireflection waveguide showed significant advantages in correction of higher order aberrations.

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Deformable mirror technologies at AOA Xinetics

Cited by 27 publications

References 0 publications

Architecture for in-space robotic assembly of a modular space telescope

Architecture for in-space robotic assembly of a modular space telescope

Operation of a layer-oriented multiconjugate adaptive optics system in the partial illumination regime

Wavefront correction performed by a deformable mirror of arbitrary actuator pattern within a multireflection waveguide

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