Calibration strategy and optics for ARGOS at the LBT

Christian Schwab*, Diethard Peter, Simon Aigner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

7 Citations (Scopus)


Effective calibration procedures play an important role for the efficiency and performance of astronomical instrumentation. We report on the calibration scheme for ARGOS, the Laser Guide Star (LGS) facility at the LBT. An artificial light source is used to feign the real laser beacons and perform extensive testing of the system, independent of the time of day and weather conditions, thereby greatly enhancing the time available for engineering. Fibre optics and computer generated holograms (CGHs) are used to generate the necessary wavefront. We present the optomechanical design, and discuss the expected accuracy, as well as tolerances in assembly and alignment.

Original languageEnglish
Title of host publicationAdaptive Optics Systems II
EditorsBrent L. Ellerbroek, Michael Hart, Norbert Hubin, Peter L. Wizinowich
Place of PublicationWashington, DC
Number of pages5
EditionPART 1
ISBN (Print)9780819482266
Publication statusPublished - 2010
Externally publishedYes
EventAdaptive Optics Systems II - San Diego, CA, United States
Duration: 27 Jun 20102 Jul 2010


OtherAdaptive Optics Systems II
CountryUnited States
CitySan Diego, CA



  • AO systems
  • Laser guide stars
  • Wavefront sensor calibration

Cite this

Schwab, C., Peter, D., & Aigner, S. (2010). Calibration strategy and optics for ARGOS at the LBT. In B. L. Ellerbroek, M. Hart, N. Hubin, & P. L. Wizinowich (Eds.), Adaptive Optics Systems II (PART 1 ed., Vol. 7736, pp. 1-5). [773630] Washington, DC: SPIE.