Reducing the uncertainty in laser beam size measurement with a scanning edge method
Applied Optics, Vol. 45, Issue 32, pp. 8197-8199 (2006)
http://dx.doi.org/10.1364/AO.45.008197
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Abstract
A modification in the analysis of a conventional laser beam spot size measurement method has been developed. The new analysis significantly decreases the uncertainty in the estimation of the beam-spot size. A conventional beam scanning approach was used in the measurement, but instead of differentiating the data and fitting the result to a Gaussian function, the data were fit to an analytical approximation to the complementary error function. As a result, fitted parameters were obtained that were consistent with the standard differentiation approach, but with considerably smaller uncertainty.
© 2006 Optical Society of America
OCIS Codes
(000.2170) General : Equipment and techniques
(000.4430) General : Numerical approximation and analysis
ToC Category:
Geometric Optics
History
Original Manuscript: April 26, 2006
Manuscript Accepted: May 25, 2006
Citation
G. Veshapidze, M. L. Trachy, M. H. Shah, and B. D. DePaola, "Reducing the uncertainty in laser beam size measurement with a scanning edge method," Appl. Opt. 45, 8197-8199 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-32-8197
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