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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 2 — Jan. 10, 2009
  • pp: 393–396

Measurement of Gaussian laser beam radius using the knife-edge technique: improvement on data analysis

Marcos A.C. de Araújo, Rubens Silva, Emerson de Lima, Daniel P. Pereira, and Paulo C. de Oliveira  »View Author Affiliations


Applied Optics, Vol. 48, Issue 2, pp. 393-396 (2009)
http://dx.doi.org/10.1364/AO.48.000393


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Abstract

We revisited the well known Khosrofian and Garetz inversion algorithm [ Appl. Opt. 22, 3406–3410 (1983)APOPAI0003-6935] that was developed to analyze data obtained by the application of the traveling knife-edge technique. We have analyzed the approximated fitting function that was used for adjusting their experimental data and have found that it is not optimized to work with a full range of the experimentally-measured data. We have numerically calculated a new set of coefficients, which makes the approximated function suitable for a full experimental range, considerably improving the accuracy of the measurement of a radius of a focused Gaussian laser beam.

© 2009 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(120.3940) Instrumentation, measurement, and metrology : Metrology
(140.3295) Lasers and laser optics : Laser beam characterization

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: October 13, 2008
Manuscript Accepted: November 17, 2008
Published: January 8, 2009

Citation
Marcos A. de Araújo, Rubens Silva, Emerson de Lima, Daniel P. Pereira, and Paulo C. de Oliveira, "Measurement of Gaussian laser beam radius using the knife-edge technique: improvement on data analysis," Appl. Opt. 48, 393-396 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-2-393


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References

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