Paper
17 April 1995 Beam characterization using power content radii
Bernd Eppich, Norbert Reng
Author Affiliations +
Abstract
In this paper we propose a calibration procedure that allows beam characterization based on power content (or any other reasonable) beam widths. Once the characterization is done, the beam width behind ABCD-systems can be predicted with sufficient accuracy. This general characterization procedure is based on two fundamental ideas. Firstly, it is assumed that the free-space propagation of any beam width is hyperbolical with deviation near the waist. The second starting point is the fact that the structure of the intensity distribution that a given beam can take on behind an ABCD-system depends only on the quantity B/A (where A and B are elements of the geometrical ray matrix). We present a simple set-up, consisting of two parts, that allows the measurement of both the three parameters and the calibration function.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bernd Eppich and Norbert Reng "Beam characterization using power content radii", Proc. SPIE 2375, Beam Control, Diagnostics, Standards, and Propagation, (17 April 1995); https://doi.org/10.1117/12.206983
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KEYWORDS
Calibration

Beam propagation method

Optical testing

High power lasers

Laser beam propagation

Optical components

Radon

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