Proceedings Article10.1117/12.454723
Shack-Hartmann wavefront sensor for laser beam analyses
Valentina Ye. Zavalova,Alexis Kudryashov +1 more
- 05 Feb 2002
- Vol. 4493, pp 277-284
41
TL;DR: Shack-Hartmann wave-front sensor (SHWS) as discussed by the authors was designed to measure both intensity distribution and phase distortion of optical fields in real time and high accuracy, which can be widely used not only in measuring, diagnostic, but also in adaptive optical systems to compensate for phase distortions.
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Abstract: Shack-Hartmann wave-front sensor (SHWS) was designed to measure both intensity distribution and phase distortion of optical fields in real time and high accuracy. It can be widely used not only in measuring, diagnostic, but also in adaptive optical systems to compensate for phase distortions. Various parameters such as peak-to-valley, root-mean square, Zernike coefficients, beam quality (M2) could be calculated with the help of such a sensor. The results of wavefront measurements by using our SHWS are reported in this paper.
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Citations
Measurement of the complex transmittance of large optical elements with Ptychographical Iterative Engine
TL;DR: Wavefront control is a significant parameter in inertial confinement fusion (ICF) and can accurately and effectively measure the transmittance of large optical elements with irregular surface profiles, which are otherwise not measurable using commonly used interferometric techniques due to a lack of standard reference plate.
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A device based on the Shack-Hartmann wave front sensor for testing wide aperture optics
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TL;DR: In this paper, the authors consider two approaches widely used in testing of wide aperture optics: Fizeau interferometer and Shack-Hartmann wavefront sensor, and compare their features to those of FIZEau interfererometer.
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Hartmannometer versus Fizeau Interferometer: advantages and drawbacks
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TL;DR: In this article, the authors considered two approaches widely used in optical testing: Shack-Hartmann wavefront sensor and Fizeau interferometer technique and compared their features to those of FIZEau interferer.
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Adaptive correction of a high-power titanium-sapphire laser radiation ∗
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References
Zernike polynomials and atmospheric turbulence
TL;DR: In this paper, a Zernike representation of the Kolmogoroff spectrum of turbulence is given that provides a complete analytical description of the number of independent corrections required in a wave-front compensation system.
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Objective measurement of wave aberrations of the human eye with the use of a Hartmann-Shack wave-front sensor
TL;DR: It is shown that with this method, using a Hartmann-Shack wave-front sensor, one can obtain a fast, precise, and objective measurement of the aberrations of the eye.
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Semipassive bimorph flexible mirrors for atmospheric adaptive optics applications
TL;DR: In this article, a simple response function histeresis compensation method is suggested to correct the first eight Zernike polynomials with a 17-electrode bimorph mirror.
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Analysis of optimal centroid estimation applied to Shack–Hartmann sensing
Roy Irwan,Richard G. Lane +1 more
TL;DR: The problem of estimating the centroid of an incoherently imaged point with a CCD array is analyzed and an exact analysis is presented that uses the actual short-exposure function at the CCD instead of the traditional Gaussian approximation.
Shack Hartmann wave-front measurement with a large F-number plastic microlens array.
TL;DR: The measurement accuracy and reproducibility of the Shack Hartmann wave-front sensor are better than λ/20 andλ/50 (λ = 632.8 nm),respectively, in rms.