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Proceedings Paper

Servo-modulator system used in a 2D shearing interferometer
Author(s): G. García-Torales; J. L. Flores; J. G. Mateos Suárez; R. X. Muñoz
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Paper Abstract

An improvement of a 2D shearing interferometer to measure small and large non-rotationally symmetrical wavefronts aberrations is described. This interferometric system encompasses large and differential wavefront displacements using a high accuracy rotation system incorporated in a Mach-Zehnder interferometer. The rotation of the prism arrangement is controlled with an electronic servomotor system by means of an auto-tuning using a Neural Network Algorithm, NNA. We describe the servo-mechanical system, the electronic interface and algorithms to control the performance of the rotation device with the aim of obtain accurate wave front position by a prism rotator system.

Paper Details

Date Published: 5 September 2006
PDF: 8 pages
Proc. SPIE 6289, Novel Optical Systems Design and Optimization IX, 628917 (5 September 2006); doi: 10.1117/12.681343
Show Author Affiliations
G. García-Torales, Univ. of Guadalajara, CUCEI (Mexico)
J. L. Flores, Univ. of Guadalajara, CUCEI (Mexico)
J. G. Mateos Suárez, Univ. of Guadalajara, CUCEI (Mexico)
R. X. Muñoz, Univ. of Guadalajara, CUCEI (Mexico)


Published in SPIE Proceedings Vol. 6289:
Novel Optical Systems Design and Optimization IX
José M. Sasian; Mary G. Turner, Editor(s)

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