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Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 19, Iss. 7 — Mar. 28, 2011
  • pp: 6741–6748

Real-time determination of laser beam quality by modal decomposition

Oliver A. Schmidt, Christian Schulze, Daniel Flamm, Robert Brüning, Thomas Kaiser, Siegmund Schröter, and Michael Duparré  »View Author Affiliations


Optics Express, Vol. 19, Issue 7, pp. 6741-6748 (2011)
http://dx.doi.org/10.1364/OE.19.006741


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Abstract

We present a real-time method to determine the beam propagation ratio M2 of laser beams. The all-optical measurement of modal amplitudes yields M2 parameters conform to the ISO standard method. The experimental technique is simple and fast, which allows to investigate laser beams under conditions inaccessible to other methods.

© 2011 OSA

OCIS Codes
(030.4070) Coherence and statistical optics : Modes
(090.1760) Holography : Computer holography
(140.3295) Lasers and laser optics : Laser beam characterization

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 18, 2011
Revised Manuscript: March 11, 2011
Manuscript Accepted: March 13, 2011
Published: March 24, 2011

Citation
Oliver A. Schmidt, Christian Schulze, Daniel Flamm, Robert Brüning, Thomas Kaiser, Siegmund Schröter, and Michael Duparré, "Real-time determination of laser beam quality by modal decomposition," Opt. Express 19, 6741-6748 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-7-6741


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References

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