Open AccessSingle shot telecentricity measurement by Fourier space grid separation
Author(s) -
Raoul-Amadeus Lorbeer,
Moritz Hitzemann,
Marko Heidrich,
G. Antonopoulos,
Tammo Ripken,
Heiko Meyer
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.006613
Subject(s) - optics , beam splitter , fourier transform , laser , laser beam quality , laser scanning , beam (structure) , wavelength , physics , materials science , laser beams , quantum mechanics
The experimental documentation of the properties of an optical system represents a particular challenge. Besides the measurement of focal quality and field distortions, telecentric systems have to yield a parallel beam propagation direction. In this paper we propose a method to test, document and optimize the telecentricity of a laser scanning system by scanning two crossed polka dot beam splitters at once. By separating both beam splitters in Fourier space we were able to detect tilting angles below 2 · 10(-3) rad for four different laser wavelengths within the same optical system. By this we determined the optimum system parameters for our scanning laser optical tomography (SLOT) setup.