The description of an adaptive optics (AO) system with no wavefront sensor to correct primary aberrations is presented. This system is based on closed loop software that iteratively analyzes a point source target image on the instrument focal plane and suitably modifies the AO device. The performed tests with a pull-only deformable mirror (DM) have shown that the system works very well, reaching an optimal focusing condition in a few seconds using standard components. Such a system can be conveniently applied in all the fields in which a not very fast optical adaptation is acceptable.

No wavefront sensor adaptive optics system for compensation of primary aberrations by software analysis of a point source image. 2. Tests

NALETTO, GIAMPIERO;FRASSETTO, FABIO;GRISAN, ENRICO;BONORA, STEFANO;DA DEPPO, VANIA;RUGGERI, ALFREDO
2007

Abstract

The description of an adaptive optics (AO) system with no wavefront sensor to correct primary aberrations is presented. This system is based on closed loop software that iteratively analyzes a point source target image on the instrument focal plane and suitably modifies the AO device. The performed tests with a pull-only deformable mirror (DM) have shown that the system works very well, reaching an optimal focusing condition in a few seconds using standard components. Such a system can be conveniently applied in all the fields in which a not very fast optical adaptation is acceptable.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/2488098
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