A test bench for ARGOS: integration of sub-systems and validation of the wavefront sensing

摘要

ARGOS, the wide eld Laser Guide Stars adaptive optics system for the Large Binocular Telescope, is nowentering its installation phase. In the meanwhile, we have started a test bench in order to integrate variousArgos sub-systems and demonstrate its wavefront measurements. To this objective, we rst validate three keycomponents of the Argos wavefront sensor which we then integrate together. The test bench therefore comprisesthe Argos wavefront camera system - including a large frame, fast framerate, high quantum eciency and lowreadout noise pnCCD -, the slope computer, and a optical gating unit. While we present here the demonstrationof those three key components, it is also a step to their system level integration that enables us to validate thewavefront measurements in term of noises, timing and computation. In the near future, those system will beintegrated to the wavefront sensor system of ARGOS.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.