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Updated: Aug 10, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Conversion of a high-order mode beam into a nearly Gaussian beam by use of a single interferometric element
A A Ishaaya1, G Machavariani, N Davidson
1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel. feami@wisemail.weizmann.ac.il
Abstract:
We present a new, compact, and practical optical mode converter that efficiently transforms a high-order Hermite-Gaussian (HG) laser beam into a nearly Gaussian beam. The mode converter is based on coherently adding different transverse parts of the high-order mode beam by use of a single planar interferometric element. The method, configuration, and experimental results obtained with a pulsed Nd:YAG HG TEM10 laser beam are presented. The results reveal that the efficiency of conversion of a HG beam to a nearly Gaussian beam can be as high as 90%.
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