4 February 2002 Rayleigh laser guide star wavefront sensing
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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.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roberto Ragazzoni, Roberto Ragazzoni, Emiliano Diolaiti, Emiliano Diolaiti, Massimiliano Tordi, Massimiliano Tordi, "Rayleigh laser guide star wavefront sensing", Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002); doi: 10.1117/12.454799; https://doi.org/10.1117/12.454799


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