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Proceedings Paper

Need for laser beam diagnostics
Author(s): Chuck Farnworth
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Paper Abstract

Lasers are dynamic sources of energy which are ever changing. The laser is prepared for the application through a series of optics varying in quality and complexity. Fluctuations in the laser and the imperfections in the optical train will affect to some degree of significance the performance of the beam at the work site. Neasuring these variables and their effects on the laser performance has been very inconsistent. Many measurement techniques are based on the perception of the person making the measurement. Inconsistencies in perception affect the results and performance quality of the system. A method for beam diagnostics has been developed that removes the human perception and offers consistency in measurements of laser beams. The Laser Beam Analyzer (LBA-10) manufactured by Spiricon is a portable self contained beam diagnostic instrument that provides numerical and visual analysis of laser characteristics. Data is taken using CCD and vidicon cameras each chosen for the wavelength of interest. The signal is then digitized for analytical analysis. The system offers algorithms for numerical comparison of beam quality and performance. This userfriendly system provides real time measurements calculations on the fly and the ability to manipulate and compare data. Accurate analysis of uniformity distribution shape and many other characteristics can be monitored consistently and with a high degree of confidence. Analysis of the laser source is simplistic. Information pertaining to the laser beam is accurate comprehensive consistent for both CW and pulsed laser sources. Variables within the system can be understood and monitored for significant changes enabling the system to operate at optimal parameters.

Paper Details

Date Published: 1 June 1991
PDF: 7 pages
Proc. SPIE 1441, Laser-Induced Damage in Optical Materials: 1990, (1 June 1991); doi: 10.1117/12.27560
Show Author Affiliations
Chuck Farnworth, Spiricon, Inc. (United States)

Published in SPIE Proceedings Vol. 1441:
Laser-Induced Damage in Optical Materials: 1990
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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