Rayleigh laser guide star wavefront sensing

Roberto Ragazzoni; Emiliano Diolaiti; Massimiliano Tordi

doi:10.1117/12.454799

4 February 2002 Rayleigh laser guide star wavefront sensing

Roberto Ragazzoni, Emiliano Diolaiti, Massimiliano Tordi

Proceedings Volume 4494, Adaptive Optics Systems and Technology II; (2002) https://doi.org/10.1117/12.454799
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

Rayleigh laser guide stars are an interesting tool to probe the atmospheric turbulence in astronomical adaptive optics. Conventional wavefront sensors can be applied at the expense of a restriction of the beacon range, usually realized by gating techniques, which translates into a very inefficient use of the light. Some alternative solutions to this inconvenient are presented in this paper, leading to the introduction of a new wavefront sensing concept. The idea is to place in the focal plane area an optical element whose section does not change for the conjugation to different ranges from the telescope aperture, hence the z-invariant name of the concept.

Citation Download Citation

Roberto Ragazzoni, Emiliano Diolaiti, and Massimiliano Tordi "Rayleigh laser guide star wavefront sensing", Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002); https://doi.org/10.1117/12.454799

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