SOUL: the Single conjugated adaptive Optics Upgrade for LBT

Pinna, Enrico; Esposito, Simone; Hinz, Philip M.; Agapito, Guido; Bonaglia, Marco; Puglisi, Alfio; Xompero, Marco; Riccardi, Armando; Briguglio, Runa; Arcidiacono, Carmelo; Carbonaro, Luca; Fini, Luca; Montoya, Manny; Durney, Olivier

doi:10.1117/12.2234444

Cited by 46 publications

(34 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the future, the FLAO system will be upgraded to Centos 7, and GUIs will be upgraded to Qt4. Later, multiple disparate versions of AO supervisor software at LBTO, i.e, FLAO, Unified Adaptive Optics (UAO), Single Conjugate Adaptive Optics Upgrade (SOUL), 13 and LBTI, will be consolidated. …”

Section: Discussionmentioning

confidence: 99%

The integration of operational AO software into the LBTO

Zhang¹

2017

Proceedings of the Adaptive Optics for Extremely Large Telescopes 5

View full text Add to dashboard Cite

After Arcetri team handover of the adaptive optics software to the Large Binocular Telescope Observatory this year, new functionalities and improvements will be implemented for daily operation and integration with the telescope. These include: safety alarm enhancements, web interface for display and control through INDI interface, operation interface upgrades, Zabbix and logging analysis/reporting improvements, and HDF5 based decimated telemetry for correlation with other Large Binocular Telescope Observatory telemetry. The adaptive optics system will be upgraded to Centos 7, and GUIs will be upgraded to Qt4. Finally, multiple disparate versions of AO supervisor software at LBTO, i.e, FLAO, UAO, SOUL, and LBTI, will be consolidated.

show abstract

Section: Discussionmentioning

confidence: 99%

The integration of operational AO software into the LBTO

Zhang¹

2017

Proceedings of the Adaptive Optics for Extremely Large Telescopes 5

View full text Add to dashboard Cite

show abstract

“…Up to one year ago, the two AO systems and the LBTI wavefront sensors could correct for atmospheric aberrations at up to 1.0 kHz on bright targets, using up to 30×30 correction subapertures in the pupil. In the summer of 2018, the left-side telescope LBTI wavefront sensor was upgraded as part of the SOUL project with detectors with less read noise and faster readouts [16,17].…”

Section: Hardware Changes To Telescopementioning

confidence: 99%

Status of commissioning stabilized infrared Fizeau interferometry with LBTI

Spalding

Hinz

Morzinksi

et al. 2019

Techniques and Instrumentation for Detection of Exoplanets IX

View full text Add to dashboard Cite

The Large Binocular Telescope Interferometer (LBTI) has the longest baseline in the world-22.7 m-for performing astronomical interferometry in Fizeau mode, which involves beam combination in a focal plane and preserves a wide field-of-view. LBTI can operate in this mode at wavelengths of 1.2-5 and 8-12 µm, making it a unique platform for carrying out high-resolution imaging of circumstellar disks, evolved stars, solar system objects, and possibly searches for planets, in the thermal infrared.Over the past five years, LBTI has carried out a considerable number of interferometric observations by combining the beams near a pupil plane to carry out nulling interferometry. This mode is useful for measuring small luminosity level offsets, such as those of exozodiacal dust disks. The Fizeau mode, by contrast, is more useful for generating an image of the target because it has more (u, v) (Fourier) plane coverage.However, the Fizeau mode is still in an ongoing process of commissioning. Sensitive Fizeau observations require active phase control, increased automation, and the removal of non-common-path aberrations (NCPA) between the science and phase beams. This increased level of control will increase the fringe contrast, enable longer integrations, and reduce time overheads.We are in the process of writing a correction loop to remove NCPA, and have carried out tests on old and synthetic data. We have also carried out on-sky Fizeau engineering tests in fall 2018 and spring 2019. In this article, we share lessons learned and strategies developed as a result of these tests.The first adaptive-optics-corrected interferometric fringes were obtained with the LBT in 2012 [1]. Since then, the Large Binocular Telescope Interferometer (LBTI) has performed most science interferometry in "nulling" mode as part of the HOSTS survey [2] to detect exozodiacal dust disks at sensitivities down to the order to

show abstract

“…The planned LBT AO "SOUL" upgrade, which will increase the wavefront sensor frame rate from 1.0 kHz to 2.0 kHz, is expected to improve SMF coupling efficiencies by an additional ~50-70%. 34…”

Section: Acquisition Cameramentioning

confidence: 99%

iLocater: a diffraction-limited Doppler spectrometer for the Large Binocular Telescope

et al. 2016

View full text Add to dashboard Cite

We are developing a stable and precise spectrograph for the Large Binocular Telescope (LBT) named "iLocater." The instrument comprises three principal components: a cross-dispersed echelle spectrograph that operates in the YJ-bands (0.97-1.30 µm), a fiber-injection acquisition camera system, and a wavelength calibration unit. iLocater will deliver high spectral resolution (R~150,000-240,000) measurements that permit novel studies of stellar and substellar objects in the solar neighborhood including extrasolar planets. Unlike previous planet-finding instruments, which are seeing-limited, iLocater operates at the diffraction limit and uses single mode fibers to eliminate the effects of modal noise entirely. By receiving starlight from two 8.4m diameter telescopes that each use "extreme" adaptive optics (AO), iLocater shows promise to overcome the limitations that prevent existing instruments from generating sub-meter-per-second radial velocity (RV) precision. Although optimized for the characterization of low-mass planets using the Doppler technique, iLocater will also advance areas of research that involve crowded fields, line-blanketing, and weak absorption lines.

show abstract

SOUL: the Single conjugated adaptive Optics Upgrade for LBT

Cited by 46 publications

References 16 publications

The integration of operational AO software into the LBTO

The integration of operational AO software into the LBTO

Status of commissioning stabilized infrared Fizeau interferometry with LBTI

iLocater: a diffraction-limited Doppler spectrometer for the Large Binocular Telescope

Contact Info

Product

Resources

About