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Proceedings Paper

Theoretical model of new beam quality paradigm for high-power laser optics
Author(s): James R. Palmer
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Paper Abstract

In this paper we describe a different mathematical technique which derives from the MTF of a system. This technique evaluates the loss of flux density in the central lobe of the Airy Disc caused by aberration of the diffraction image caused by the mode shape of the laser cavity, the thermal-mechanical distortion of the optical components in the high power laser beam train and ultimately the focusing optical components. The theoretical model, which we call Central Lobe Energy Distribution Technique, provides the equations for evaluating optical distortion caused by the absorbed thermal flux density on the mirrors, the mechanical bowing and subsequent distortion of the mounting configuration and the criteria for sizing the optical components in relation to the laser beam diameter. A comparison is made for both the Strehl criteria and for the M2 technique, showing examples.

Paper Details

Date Published: 7 August 1993
PDF: 33 pages
Proc. SPIE 1869, Intracavity and Extracavity Control of Laser Beam Properties, (7 August 1993); doi: 10.1117/12.148396
Show Author Affiliations
James R. Palmer, Ctr. for Applied Optics/Univ. of Alabama in Huntsville (United States)

Published in SPIE Proceedings Vol. 1869:
Intracavity and Extracavity Control of Laser Beam Properties
Roger Lee Facklam; Karl H. Guenther; Stephan P. Velsko, Editor(s)

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