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Proceedings Paper

Shack-Hartmann wavefront sensor versus Fizeau interferometer for laser beam measurements
Author(s): Julia Sheldakova; Alexis Kudryashov; Valentina Zavalova; Pavel Romanov
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Paper Abstract

The problem of wavefront measurements is one of the most important tasks in the modern optics and laser physics. There are lots of different tools for wavefront measurement. And the user might choose any type of instrument which could solve certain task. The devices for wavefront analysis differ from each other not only by setup and by processing algorithms but also dynamic range and accuracy should be taken into account. The most popular devices are Shack- Hartmann wavefront sensor and various types of interferometers. In this paper we compare Shack-Hartmann wavefront sensor with Fizeau interferometer; classical analysis of interferograms (based on measurement of the fringe centers position) and phase-shifting methods are also compared. Advantages and disadvantages of three methods are discussed.

Paper Details

Date Published: 19 February 2009
PDF: 8 pages
Proc. SPIE 7194, Laser Resonators and Beam Control XI, 71940B (19 February 2009); doi: 10.1117/12.822692
Show Author Affiliations
Julia Sheldakova, Moscow State Open Univ. (Russian Federation)
Alexis Kudryashov, Moscow State Open Univ. (Russian Federation)
Valentina Zavalova, Moscow State Open Univ. (Russian Federation)
Pavel Romanov, Moscow State Open Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 7194:
Laser Resonators and Beam Control XI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke, Editor(s)

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