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Proceedings Article

M2-characterization of beams emerging from LMA fibers by means of modal decomposition

[+] Author Affiliations
Daniel Flamm, Christian Schulze, Oliver A. Schmidt, Michael Duparré

Friedrich-Schiller-Univ. Jena (Germany)

Siegmund Schröter

Institute of Photonic Technology (Germany)

Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79141R (February 10, 2011); doi:10.1117/12.874722
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From Conference Volume 7914

  • Fiber Lasers VIII: Technology, Systems, and Applications
  • Jay W. Dawson
  • San Francisco, California, USA | January 22, 2011

abstract

We report on a fast measurement procedure for the widespread beam propagation ratio of light emerging from LMA fibers. The investigated beam is decomposed into its eigenmodes using a computer generated holographic filter. The modally resolved measurement of amplitudes and phases enables the reconstruction of the optical field. With the full field information, the propagation of the beam through free space is simulated and a virtual caustic measurement is realized. After comparing the presented method with ISO-standard measurements it is applied to conventional step-index fibers as well as to a multicore fiber.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Daniel Flamm ; Christian Schulze ; Oliver A. Schmidt ; Siegmund Schröter and Michael Duparré
"M2-characterization of beams emerging from LMA fibers by means of modal decomposition", Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79141R (February 10, 2011); doi:10.1117/12.874722; http://dx.doi.org/10.1117/12.874722


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