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Proceedings Paper

Experimental testing of integral truncation algorithms for the calculation of beam widths by proposed ISO standard methods
Author(s): Paul Apte; Malcolm C. Gower; Brooke A. Ward
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Paper Abstract

The experimental testing of baseline clipping algorithms was carried out on a purposely constructed test bench. Three different lasers were used for the tests including HeNe and collimated laserdiode. The beam profile intensity distribution was measured using a CCD camera at various distances from a reference lens. Results were analyzed on an 486 PC running custom developed software written in Turbo Pascal. This allows very fast evaluation of the algorithms to be performed at rates of several times per second depending upon computational load. Tables of beam width data were created and then analyzed using Mathematica to see if the data confirmed ABCD propagation laws. Values for the beam waist location, size, and propagation constant were calculated.

Paper Details

Date Published: 17 April 1995
PDF: 10 pages
Proc. SPIE 2375, Beam Control, Diagnostics, Standards, and Propagation, (17 April 1995); doi: 10.1117/12.206997
Show Author Affiliations
Paul Apte, Exitech Ltd. (United Kingdom)
Malcolm C. Gower, Exitech Ltd. (United Kingdom)
Brooke A. Ward, The Europtics Partnership (United Kingdom)


Published in SPIE Proceedings Vol. 2375:
Beam Control, Diagnostics, Standards, and Propagation
Lindsay W. Austin; Adolf Giesen; Daniel H. Leslie, Editor(s)

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