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Proceedings Paper

Laser rods characterization by Fourier transform phase-shifting interferometry
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Paper Abstract

Solid-state lasers are broadly used in various applications. The most common gain medium is neodymium-doped yttrium aluminum garnet (Nd:YAG). Very important parameters are angle between polished face surfaces and result wave-front deformation. These parameters are usually measured with two different methods. The paper presents a procedure for measurements of the parameters in a single measurement sequence using Fourier transform phase-shifting interferometry. The results are figures of both optical surfaces, and their mutual position, wave-front deformation, and homogeneity of refractive index. Based on the knowledge of these parameters can be done precise correction of resulted wave-front and of the wedge by polishing of face surfaces. The presented method reduces manipulation with the elements is non-sensitive to the operator and allows more precise wavefront correction thanks to the knowledge of inhomogeneity of material.

Paper Details

Date Published: 30 December 2019
PDF: 7 pages
Proc. SPIE 11385, Optics and Measurement International Conference 2019, 113850C (30 December 2019); doi: 10.1117/12.2547487
Show Author Affiliations
O. Matoušek, Institute of Plasma Physics of the CAS, v.v.i. (Czech Republic)
F. Procháska, Institute of Plasma Physics of the CAS, v.v.i. (Czech Republic)
J. Kredba, Institute of Plasma Physics of the CAS, v.v.i. (Czech Republic)

Published in SPIE Proceedings Vol. 11385:
Optics and Measurement International Conference 2019
Jana Kovačičinová, Editor(s)

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