5 September 2006 Servo-modulator system used in a 2D shearing interferometer
Author Affiliations +
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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. García-Torales, G. García-Torales, J. L. Flores, J. L. Flores, J. G. Mateos Suárez, J. G. Mateos Suárez, R. X. Muñoz, R. X. Muñoz, } "Servo-modulator system used in a 2D shearing interferometer", Proc. SPIE 6289, Novel Optical Systems Design and Optimization IX, 628917 (5 September 2006); doi: 10.1117/12.681343; https://doi.org/10.1117/12.681343
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

Risley prism beam pointer
Proceedings of SPIE (August 31 2006)
Variable sensitivity of vectorial shearing interferometer
Proceedings of SPIE (November 03 2004)
High precision prism scanning system
Proceedings of SPIE (May 14 2007)

Back to Top