Laser guide star projection for large telescopes

Erez N. Ribak

doi:10.1117/12.684936

28 June 2006 Laser guide star projection for large telescopes

Erez N. Ribak

Proceedings Volume 6272, Advances in Adaptive Optics II; 62724E (2006) https://doi.org/10.1117/12.684936
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

Perspective imaging of laser guide stars leads to their elongation. This effect is significant in future large telescopes, where many such beacons are necessary. Solutions to these problems include mechanical or electronic movement at the sensing devices, optical separation of the reference sources and more. Another solution is to shift the burden of analysis to the lasers and create a pattern which suffers less from perspective elongation when scattered back onto the detectors. Finally, different analysis methods can then be employed to solve for the wave front tomographically from this projected pattern.

Citation Download Citation

Erez N. Ribak "Laser guide star projection for large telescopes", Proc. SPIE 6272, Advances in Adaptive Optics II, 62724E (28 June 2006); https://doi.org/10.1117/12.684936

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