Rayleigh laser guide star calibration unit for the Large Binocular Telescope
We describe the calibration method to be used for the off-axis laser guide stars at the Large Binocular Telescope’s (LBT’s) advanced Rayleigh guided ground layer adaptive optics system facility and the optical design of a dedicated calibration unit. Several possible solutions for generating artifici...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
June 25, 2010
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| In: |
Applied optics
Year: 2010, Volume: 49, Issue: 31, Pages: G53-G59 |
| ISSN: | 2155-3165 |
| DOI: | 10.1364/AO.49.000G53 |
| Online Access: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1364/AO.49.000G53 Verlag, lizenzpflichtig, Volltext: https://opg.optica.org/ao/abstract.cfm?uri=ao-49-31-G53 
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| Author Notes: | Christian Schwab and Andrew Rakich |
| Summary: | We describe the calibration method to be used for the off-axis laser guide stars at the Large Binocular Telescope’s (LBT’s) advanced Rayleigh guided ground layer adaptive optics system facility and the optical design of a dedicated calibration unit. Several possible solutions for generating artificial stars with the same wavefront as the real beacons were investigated. We find the use of a computer-generated hologram to be the best solution to the problem of producing aberrated light exactly matching that delivered by the primary mirror of the telescope. A detailed design and tolerance analysis is complete and the project is currently moving into the fabrication phase. |
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| Item Description: | Gesehen am 06.07.2023 |
| Physical Description: | Online Resource |
| ISSN: | 2155-3165 |
| DOI: | 10.1364/AO.49.000G53 |