Experimental testing of integral truncation algorithms for the calculation of beam widths by proposed ISO standard methods

Paul Apte; Malcolm C. Gower; Brooke A. Ward

doi:10.1117/12.206997

17 April 1995 Experimental testing of integral truncation algorithms for the calculation of beam widths by proposed ISO standard methods

Paul Apte, Malcolm C. Gower, Brooke A. Ward

Author Affiliations +

Proceedings Volume 2375, Beam Control, Diagnostics, Standards, and Propagation; (1995) https://doi.org/10.1117/12.206997
Event: Photonics West '95, 1995, San Jose, CA, United States

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.

Citation Download Citation

Paul Apte, Malcolm C. Gower, and Brooke A. Ward "Experimental testing of integral truncation algorithms for the calculation of beam widths by proposed ISO standard methods", Proc. SPIE 2375, Beam Control, Diagnostics, Standards, and Propagation, (17 April 1995); https://doi.org/10.1117/12.206997

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