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Reducing the Field of View in Correlating Wavefront Sensors for Solar Adaptive Optics

Townson, Matthew J.; Saunter, Christopher D.

Authors

Christopher D. Saunter



Abstract

Wavefront sensing for solar adaptive optics currently requires the use of extended-field Shack-Hartmann wavefront sensors. Such wavefront sensors suffer from a reduced sensitivity to high altitude turbulence due effects of measuring wavefront gradients using the relative motion within the extended-field. We discuss the performance of centroiding techniques in a correlation Shack-Hartmann wavefront sensor and the insensitivity to high altitude turbulence and propose a method for reducing the field of view required to effectively measure the wavefront gradient in order to increase the sensors sensitivity to high altitude turbulence.

Citation

Townson, M. J., & Saunter, C. D. (2017). Reducing the Field of View in Correlating Wavefront Sensors for Solar Adaptive Optics. In Proceedings of the Adaptive Optics for Extremely Large Telescopes 5 (AO4ELT5) : Tenerife, Canary Islands, Spain, June 25-30, 2017. https://doi.org/10.26698/ao4elt5.0156

Conference Name Adaptive Optics for Extremely Large Telescopes 5 (AO4ELT5)
Conference Location Tenerife, Canary Islands, Spain
Start Date Jun 25, 2017
End Date Jun 30, 2017
Publication Date Jan 1, 2017
Deposit Date May 1, 2018
Series Title Adaptive Optics for Extremely Large Telescopes 5
Book Title Proceedings of the Adaptive Optics for Extremely Large Telescopes 5 (AO4ELT5) : Tenerife, Canary Islands, Spain, June 25-30, 2017.
DOI https://doi.org/10.26698/ao4elt5.0156


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