scholarly journals Prototype of a laser guide star wavefront sensor for the Extremely Large Telescope

2018 ◽  
Vol 477 (1) ◽  
pp. 539-547
Author(s):  
M Patti ◽  
M Lombini ◽  
L Schreiber ◽  
G Bregoli ◽  
C Arcidiacono ◽  
...  
Keyword(s):  
Wavefront Sensor ◽  
Laser Guide Star ◽  
Large Telescope ◽  
Guide Star ◽  
Laser Guide

The MAORY laser guide star wavefront sensor: design status

2018 ◽  
Author(s):  
Philippe Feautrier ◽  
Eric Stadler ◽  
Patrick Rabou ◽  
Jean-Jacques Correia ◽  
Sylvain Rochat ◽  
...  
Keyword(s):  
Wavefront Sensor ◽  
Sensor Design ◽  
Laser Guide Star ◽  
Guide Star ◽  
Laser Guide

scholarly journals A laser guide star wavefront sensor bench demonstrator for TMT

2008 ◽  
Vol 16 (8) ◽  
pp. 5527 ◽  
Author(s):  
Olivier Lardiere ◽  
Rodolphe Conan ◽  
Colin Bradley ◽  
Kate Jackson ◽  
Glen Herriot
Keyword(s):  
Wavefront Sensor ◽  
Laser Guide Star ◽  
Guide Star ◽  
Laser Guide

scholarly journals Pre-shipment test of the ARGOS laser guide star wavefront sensor

2014 ◽  
Author(s):  
Marco Bonaglia ◽  
Lorenzo Busoni ◽  
Tommaso Mazzoni ◽  
Alfio Puglisi ◽  
Jacopo Antichi ◽  
...  
Keyword(s):  
Wavefront Sensor ◽  
Laser Guide Star ◽  
Guide Star ◽  
Laser Guide

Accurate laser guide star wavefront sensor simulation for the E-ELT first light adaptive optics module

2016 ◽  
Author(s):  
Mauro Patti ◽  
Laura Schreiber ◽  
Carmelo Arcidiacono ◽  
Giovanni Bregoli ◽  
Paolo Ciliegi ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Wavefront Sensor ◽  
Laser Guide Star ◽  
Guide Star ◽  
Laser Guide

scholarly journals Raman-scattered laser guide-star photons to monitor the scatter of astronomical telescope mirrors

2018 ◽  
Vol 618 ◽  
pp. L7 ◽  
Author(s):  
Frédéric P. A. Vogt ◽  
José Luis Álvarez ◽  
Domenico Bonaccini Calia ◽  
Wolfgang Hackenberg ◽  
Pierre Bourget ◽  
...  
Keyword(s):  
Dust Particles ◽  
Symbiotic Relationship ◽  
Laser Guide Star ◽  
Large Telescope ◽  
Non Invasive ◽  
Very Large Telescope ◽  
Integral Field Spectrograph ◽  
Guide Star ◽  
Laser Guide ◽  
Integral Field

The first observations of laser guide-star photons that are Raman-scattered by air molecules above the Very Large Telescope (VLT) were reported in June 2017. The initial detection came from the Multi-Unit Spectroscopic Explorer (MUSE) optical integral field spectrograph, following the installation of the 4 Laser Guide Star Facility (4LGSF) on Unit Telescope 4 (UT4) of the VLT. In this Letter, we delve further into the symbiotic relationship between the 4LGSF laser guide-star system, the UT4 telescope, and MUSE by monitoring the spectral contamination of MUSE observations by Raman photons over a 27-month period. This dataset reveals that dust particles deposited on the primary and tertiary mirrors of UT4, which are responsible for a reflectivity loss of ∼8% at 6000 Å, contribute (60 ± 5)% to the laser line fluxes detected by MUSE. The flux of Raman lines, which contaminates scientific observations that are acquired with optical spectrographs, thus provides a new, non-invasive means to monitor the evolving scatter properties of the mirrors of astronomical telescopes that are equipped with laser guide-star systems.

scholarly journals Laser guide star optimized wavefront sensor system for the Thirty Meter Telescope

2017 ◽  
Author(s):  
Sean Adkins ◽  
Corinne Boyer ◽  
Brent Ellerbroek ◽  
Bob Leach
Keyword(s):  
Sensor System ◽  
Wavefront Sensor ◽  
Laser Guide Star ◽  
Guide Star ◽  
Laser Guide

Design of a laser guide star wavefront sensor system for NFIRAOS

2018 ◽  
Author(s):  
Jeffrey Crane ◽  
Jenny Atwood ◽  
David R. Andersen ◽  
Peter Byrnes ◽  
Glen Herriot ◽  
...  
Keyword(s):  
Sensor System ◽  
Wavefront Sensor ◽  
Laser Guide Star ◽  
Guide Star ◽  
Laser Guide
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