Comparative analysis of numerical methods for the mode analysis of laser beams.

@article{Brning2013ComparativeAO,
  title={Comparative analysis of numerical methods for the mode analysis of laser beams.},
  author={Robert Br{\"u}ning and Philipp Gelszinnis and Christian Schulze and Daniel Flamm and Michael Duparr{\'e}},
  journal={Applied optics},
  year={2013},
  volume={52 32},
  pages={7769-77}
}
We present a comparative study of four numerical methods to detect the mode content of a laser beam from, at most, two intensity images. The techniques are compared regarding temporal effort, stability, and accuracy, using the example of three multimode optical fibers that differ in the number of supported modes.