Abstract
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 language | English |
|---|---|
| Title of host publication | Adaptive Optics Systems II |
| Editors | Brent L. Ellerbroek, Michael Hart, Norbert Hubin, Peter L. Wizinowich |
| Place of Publication | Washington, DC |
| Publisher | SPIE |
| Pages | 1-5 |
| Number of pages | 5 |
| Volume | 7736 |
| Edition | PART 1 |
| ISBN (Print) | 9780819482266 |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
| Event | Adaptive Optics Systems II - San Diego, CA, United States Duration: 27 Jun 2010 → 2 Jul 2010 |
Other
| Other | Adaptive Optics Systems II |
|---|---|
| Country/Territory | United States |
| City | San Diego, CA |
| Period | 27/06/10 → 2/07/10 |
Keywords
- AO systems
- Laser guide stars
- Wavefront sensor calibration