Mauro Manetti

The importance of dynamic analysis in mitigating the control-structure-interaction (CSI) in large adaptive deformable mirrors

Mauro Manetti, Roberto Biasi, Matteo Tintori, Samson H. S. Kumar et autres

GMT ASM status and phasing test results

Frank Groark, Peter Thompson, Mauro Manetti, Matteo Tintori et autres

The Giant Magellan Telescope utilizes a segmented adaptive secondary mirror subsystem for correction of atmospheric wavefront error (r0=7cm), wind-induced telescope vibrations up to 17 m/s wind speed, and M1 and M2 alignment errors. Each of the 7 segments is a 1.05 m …

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Adaptive optics for the European Solar Telescope: test results of the adaptive secondary prototype

Matteo Tintori, Daniele Gallieni, Samson Hansraj Sambath Kumar, Roberto Biasi et autres

The AdOptica Consortium has developed a novel DM prototype that combines high actuator density with low power dissipation, offering a significant technological step forward for solar AO applications. The prototype has a 227mm aperture with 90 actuators, featuring a reduced pitch that …

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High fidelity adaptive mirror simulations with reduced order models

Bernadett Stadler, Roberto Biasi, Mauro Manetti, Andreas Obereder et autres

In the design process of large adaptive mirrors numerical simulations represent the first step to evaluate the system design compliance in terms of performance, stability and robustness. For the next generation of Extremely Large Telescopes increased system dimensions and bandwidths lead to …

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GMT ASM overview and status

Frank Groark, Hugo Chiquito, Glenn Brossus, John T. Spanos et autres

The 25.4m diameter Giant Magellan Telescope utilizes a segmented adaptive secondary mirror subsystem (ASMS) for correction of atmospheric wavefront error (r0=7cm), wind-induced telescope vibrations up to 17m/s wind speed, and M1 and M2 segment alignment errors. The ASMS is composed of seven …

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High density VCM deformable mirror

Matteo Tintori, Daniele Gallieni, Pavel Kravets, Pierluigi Fumi et autres

The well consolidated technology developed by AdOptica for large, contactless deformable mirrors is now being evolved to higher actuator density and low power consumption. In this paper we present the simulation of the performances of an 800mm deformable mirror with 2172 actuators …

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High fidelity adaptive mirror simulations with reduced order models

Bernadett Stadler, Roberto Biasi, Mauro Manetti, Andreas Obereder et autres

In the design process of large adaptive mirrors numerical simulations represent the first step to evaluate the system design compliance in terms of performance, stability and robustness. For the next generation of Extremely Large Telescopes increased system dimensions and bandwidths lead to …

High density, low power, contactless VCM-based adaptive mirror prototype

Roberto Biasi, Matteo Tintori, Mauro Manetti, Gerald Angerer et autres

The well consolidated technology developed by AdOptica for large, contactless deformable mirrors is now being evolved to higher actuator density and low power consumption. In this paper we present the simulation of the performances of an 800mm deformable mirror with 2172 actuator …

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ESO's ELT M4 dynamic control and computational performance

Mario Andrighettoni, Mauro Manetti, Dietrich Pescoller, Gerald Angerer et autres

The ESO’s ELT M4 adaptive mirror is based on the large, contactless voice-coil adaptive mirror technology, with 5352 actuators controlling the shape of the six mirror segments [1]. The control concept is still based on a closed loop control with co-located capacitive …

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GMT ASM prototype dynamic and optical tests results

Mario Andrighettoni, Roberto Biasi, Mauro Manetti, Matteo Tintori et autres

The GMT Adaptive Secondary Mirror (ASM) has recently completed the final design phase and the construction of the first segment has begun [1]. For the purpose of risk reduction, we developed a prototype with 72 actuators and a diameter of 354 mm, …

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MORFEO@ELT: preliminary design of the real-time computer

Andrea Baruffolo, Ivano Baronchelli, Salvatore Savarese, Salvatore Lampitelli et autres

In this paper we report about the preliminary design of the Real Time Computer (RTC) for the MORFEO@ELT (formerly MAORY@ELT) Multi-Conjugate Adaptive Optics module for the ESO Extremely Large Telescope. The ELT MCAO module MORFEO provides high sky coverage, large field, diffraction …

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GMT ASM co-phasing numerical simulation and experimental results

Mauro Manetti, Roberto Biasi, Matteo Tintori, Daniele Gallieni et autres

One of the most challenging aspects of the Giant Magellan Telescope (GMT) is the need to co-phase the seven segments for the Laser Tomographic Adaptive Optics (LTAO) mode of operation. Low and high frequency co-phasing systems are used that overlap at 1/30 …

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