Paper
11 December 2003 Direct measurement of Zernike aberration modes with a modal wavefront sensor
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Abstract
It is often convenient to represent a wavefront aberration by the superposition of several aberration modes, for example, using the set of Zernike polynomials. In many practical situations the total aberration can be accurately represented by a small number of such modes. It is therefore desirable to be able to measure directly the modal content of the wavefront. The modal wavefront sensor allows us to do just this. This sensor can be applied to closed-loop aberration correction in adaptive systems and to direct absolute measurement of modal aberration coefficients. One implementation offers the possibility of an adaptive optics system where we have disposed altogether of a separate wavefront sensor. We present here extension of the modal wavefront sensing theory and explore the options for optimization of the design. We investigate the linear measurement range of the sensor and the performance in closed-loop systems.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Martin J. Booth "Direct measurement of Zernike aberration modes with a modal wavefront sensor", Proc. SPIE 5162, Advanced Wavefront Control: Methods, Devices, and Applications, (11 December 2003); https://doi.org/10.1117/12.503695
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CITATIONS
Cited by 30 scholarly publications and 2 patents.
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KEYWORDS
Sensors

Wavefronts

Wavefront sensors

Monochromatic aberrations

Photodetectors

Adaptive optics

Spherical lenses

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