Pyramid wavefront sensor optical gains compensation using a convolutional model
نویسندگان
چکیده
منابع مشابه
Measuring Phase Aberrations using a Pyramid Wavefront Sensor
The pyramid wavefront sensor (PWS) was initially proposed by astronomers to measure aberrations introduced by the atmosphere. More recently it has been used to measure aberrations of the human eye, and has been successfully incorporated into an adaptive optics loop to correct those aberrations. The raw sensor signal can be used as feedback to control a wavefront correcting device, or with appro...
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The pyramid wavefront sensor is very similar to the Fourier knife-edge test, but employs dynamic modulation to quantify the phase derivative. For circular modulation, we compare approximate geometrical optics calculations, more exact diffraction calculations, and experimental results. We show that both the sinusoidal and the approximate linear relationship between wavefront derivative and wavef...
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A silicon micromachined deformable mirror QiDM) has been developed by Boston University and Boston Micromachines Corporation (BMC). The pDM employs a flexible silicon mirror supported by mechanical attachments to an array of electrostatic parallel plate actuators. The integrated system of mirror and actuators was fabricated by surface micromachining using polycrystalline silicon thin films. The...
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cfm?URI=FiO-2005-FThZ3.[5] Chiesa, S.; Daly, E.; Dainty, J.C.; Chamot, S.R. Adaptive optics system for retinal imaging based on a pyramid wavefront sensor. In Adaptive Optics for Industry and Medicine, Galway, Ireland, June, 2008; Dainty, J.C. Ed;Imperial College Press, 2008; Chapter 4, pp 336–341.[6] Daly, E.M.; Dainty, J.C. Proc. SPIE Opt. Sens. Detect. 2010, 7726, 7760W.[7] D...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2020
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/202037836