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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 20, Iss. 11 — Jun. 1, 1981
  • pp: 1933–1935

Higher-order CO2 laser beam spot size and depth of focus determined

James T. Luxon and David E. Parker  »View Author Affiliations


Applied Optics, Vol. 20, Issue 11, pp. 1933-1935 (1981)
http://dx.doi.org/10.1364/AO.20.001933


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Abstract

Measurements of higher-order CO2 laser beam spot size have been made and found in good agreement with a Hermite-Gaussian rectangular beam propagation model. A modified working definition of spot size is introduced, and a useful depth of focus relationship is presented. It is shown that a single measurement of spot size for any higher-order mode is all that is required to reasonably predict spot size for the same laser operating in different modes. Alternatively, beam size can be predicted theoretically on the basis of the optical cavity parameters.

© 1981 Optical Society of America

History
Original Manuscript: March 2, 1981
Published: June 1, 1981

Citation
James T. Luxon and David E. Parker, "Higher-order CO2 laser beam spot size and depth of focus determined," Appl. Opt. 20, 1933-1935 (1981)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-20-11-1933

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