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Proceedings Paper

Redistribution of the laser beam power using diffractive optical elements
Author(s): Serguei P. Murzin; Gerhard Liedl; Robert Bielak
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Paper Abstract

The use of laser technologies in the production of optical fiber requires a careful choice of optical systems for positioning and transforming the laser beam. The purpose of this research is to determine a possibility of the redistribution of the laser beam power using diffractive optical elements. It was determined that for a radius of the focusable beam Rf = rf =2.2×10-2 m, the length of the focal spot will be increased to a value L =13.6×10-3 m, which is 1.2 times larger than Rf = rf =1.8×10-2 m. In this case, the intensity of the laser beam at the centre of the focal spot, q0 , and the maximum value, qmax , decreased by 1.1 times. An approximation of function q(x, y) by polynomials of degree n =5and m =3 was performed. It is shown that the maximal relative error of approximation does not exceed 4%, and the relative error of approximation in the centre of the focal spot does not exceed 3%. Presented equations can be used to calculate the intensity distribution in the focal plane of diffractive optical elements.

Paper Details

Date Published: 6 April 2017
PDF: 10 pages
Proc. SPIE 10342, Optical Technologies for Telecommunications 2016, 103420G (6 April 2017); doi: 10.1117/12.2270762
Show Author Affiliations
Serguei P. Murzin, Samara National Research Univ. (Russian Federation)
Gerhard Liedl, Technische Univ. Wien (Austria)
Robert Bielak, Technische Univ. Wien (Austria)

Published in SPIE Proceedings Vol. 10342:
Optical Technologies for Telecommunications 2016
Vladimir A. Andreev; Anton V. Bourdine; Vladimir A. Burdin; Oleg G. Morozov; Albert H. Sultanov, Editor(s)

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