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Proceedings Article

Laser beam characterization by means of diffractive optical correlation filters

[+] Author Affiliations
Michael R. Duparre, Barbara Luedge

Friedrich-Schiller-Univ. Jena (Germany)

Vladimir S. Pavelyev, Victor A. Soifer

Image Processing Systems Institute (Russia)

Proc. SPIE 4095, Laser Beam Shaping, 40 (October 25, 2000); doi:10.1117/12.405266
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From Conference Volume 4095

  • Laser Beam Shaping
  • Fred M. Dickey; Scott C. Holswade
  • San Diego, CA, USA | July 30, 2000

abstract

Analyzing of amplitude-phase characteristics of laser beam is topical in experimental physics and in a great number of laser applications, such as, for example, laser material treatment. The task of analyzing the amplitude-phase beam structure may be treated as that of analyzing the modal composition, if this is thought of as both analyzing individual modal powers and intermode phase shifts. In this paper the problem is tackled using a special diffractive optical element (DOE), called MODAN, matched to a group of laser radiation modes and their special combinations. The experimental results reported indicate that such an approach shows promise.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Michael R. Duparre ; Vladimir S. Pavelyev ; Victor A. Soifer and Barbara Luedge
"Laser beam characterization by means of diffractive optical correlation filters", Proc. SPIE 4095, Laser Beam Shaping, 40 (October 25, 2000); doi:10.1117/12.405266; http://dx.doi.org/10.1117/12.405266


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