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Proceedings Paper

M² quality factor as a key to mastering laser beam propagation
Author(s): Mohamed Bouafia; Halim Bencheikh; Larbi Bouamama; Horst Weber
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Paper Abstract

One of the most important properties of a laser resonator is the highly collimated or spatially coherent nature of the laser output beam. The spatial beam quality of the output beam, namely beam diameter and propagation factor M2 are critical parameters in a wide range of practical laser applications. This is because the spatial beam quality determines how tightly the beam can be focused or how well the beam propagates over long distances without significant spreading. It was investigated by many authors in previous years how to define and on how to measure the laser beam quality. An ISO working Draft Committee has also been organized to set-up a standard for definitions and test methods of the laser beam quality. In this work, the quality factor is studied with different methods.

Paper Details

Date Published: 1 September 2004
PDF: 11 pages
Proc. SPIE 5456, Photon Management, (1 September 2004); doi: 10.1117/12.545578
Show Author Affiliations
Mohamed Bouafia, Univ. Ferhat Abbas de Setif (Algeria)
Halim Bencheikh, Univ. Ferhat Abbas de Setif (Algeria)
Larbi Bouamama, Univ. Ferhat Abbas de Setif (Algeria)
Horst Weber, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 5456:
Photon Management
Frank Wyrowski, Editor(s)

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