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Proceedings Paper

M2-characterization of beams emerging from LMA fibers by means of modal decomposition
Author(s): Daniel Flamm; Christian Schulze; Oliver A. Schmidt; Siegmund Schröter; Michael Duparré
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Paper 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.

Paper Details

Date Published: 10 February 2011
PDF: 8 pages
Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79141R (10 February 2011); doi: 10.1117/12.874722
Show Author Affiliations
Daniel Flamm, Friedrich-Schiller-Univ. Jena (Germany)
Christian Schulze, Friedrich-Schiller-Univ. Jena (Germany)
Oliver A. Schmidt, Friedrich-Schiller-Univ. Jena (Germany)
Siegmund Schröter, Institute of Photonic Technology (Germany)
Michael Duparré, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 7914:
Fiber Lasers VIII: Technology, Systems, and Applications
Jay W. Dawson, Editor(s)

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