Abstract

This paper describes a convenient method for spatial profiling of pulsed laser beams using the scanning knife-edge technique. This method is applied to a Nd:YAG laser and a chopped CO2 laser.

© 1985 Optical Society of America

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References

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  1. D. K. Cohen, B. Little, F. S. Luecke, “Techniques for Measuring 1-μm diam Gaussian Beams,” Appl. Opt. 23, 637 (1984).
    [CrossRef] [PubMed]
  2. A. H. Firester, M. E. Heller, P. Sheng, “Knife-Edge Scanning Measurements of Subwavelength Focused Light Beams,” Appl. Opt. 16, 1971 (1977).
    [CrossRef] [PubMed]
  3. M. Mauck, “Knife-Edge Profiling of Q-Switched Nd:YAG Laser Beam and Waist,” Appl. Opt. 18, 599 (1979).
    [CrossRef] [PubMed]
  4. J. A. Arnaud et al., “Technique for Fast Measurement of Gaussian Laser Beam Parameters,” Appl. Opt. 10, 2775 (1971).
    [CrossRef] [PubMed]
  5. Y. Suzaki, A. Tachibana, “Measurement of the μm Sized Radius of Gaussian Laser Beam Using the Scanning Knife-Edge,” Appl. Opt. 14, 2809 (1975).
    [CrossRef] [PubMed]
  6. J. N. M. Khosrofian, B. A. Garetz, “Measurement of a Gaussian Laser Beam Diameter Through the Direct Inversion of Knife-Edge,” Appl. Opt. 22, 3406 (1983).
    [CrossRef] [PubMed]

1984 (1)

1983 (1)

1979 (1)

1977 (1)

1975 (1)

1971 (1)

Arnaud, J. A.

Cohen, D. K.

Firester, A. H.

Garetz, B. A.

Heller, M. E.

Khosrofian, J. N. M.

Little, B.

Luecke, F. S.

Mauck, M.

Sheng, P.

Suzaki, Y.

Tachibana, A.

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Figures (5)

Fig. 1
Fig. 1

Schematic arrangement for knife-edge scanning of pulsed Nd:YAG laser beam.

Fig. 2
Fig. 2

Example of raw and differentiated knife-edge scan signals for 2 × Nd:YAG laser beam. The scan speed was 0.373 mm sec[1.

Fig. 3
Fig. 3

Example of scanning knife-edge data measured in the focal region of a 2 × Nd:YAG laser beam. The 1/e intensity radius is plotted as a function of distance from the beam waist. The solid line is a fit of these data to the theoretical form for a Gaussian beam.

Fig. 4
Fig. 4

Schematic arrangement for knife-edge scanning of a CO2 laser beam.

Fig. 5
Fig. 5

Example of typical spatial profile obtained for a CO2 laser beam.

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