Paper
28 August 1998 Closed-loop wave-front correction using phase diversity
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Abstract
Closed loop wave front correction of low order Zernike polynomials has been demonstrated using a phase diversity wavefront sensor. The Lockheed-Martin Advanced Technology Center phase diversity brassboard was used to demonstrate low bandwidth correction of aberrations consisting of the Zernike polynomials describing focus, coma and spherical. The method of Lofdahl-Scharmer is used to estimate and correct fixed aberrations in an optical system. The General Regression Neural Network method is used to estimate slowly varying aberrations in the same optical system. Closed loop experimental results from these tests are presented.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rick Lee Kendrick, Raymond M. Bell Jr., Alan L. Duncan, Gordon D. Love, and D. Scott Acton "Closed-loop wave-front correction using phase diversity", Proc. SPIE 3356, Space Telescopes and Instruments V, (28 August 1998); https://doi.org/10.1117/12.324439
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CITATIONS
Cited by 11 scholarly publications and 1 patent.
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KEYWORDS
Wavefronts

Spatial light modulators

Cameras

Wavefront sensors

Imaging systems

Adaptive optics

Liquid crystals

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