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Proceedings Article

Complete description of optical fields propagating in passive LMA fibers regarding amplitude, relative phase delay, and polarization by means of optical correlation filters

[+] Author Affiliations
Daniel Flamm, Michael Duparré

Friedrich-Schiller-Univ. Jena (Germany)

Siegmund Schröter

Institut für Photonische Technologien Jena (Germany)

Proc. SPIE 7579, Laser Resonators and Beam Control XII, 75790R (February 17, 2010); doi:10.1117/12.845979
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From Conference Volume 7579

  • Laser Resonators and Beam Control XII
  • Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko
  • San Francisco, California, USA | January 23, 2010

abstract

The coexistence of different propagating modes inside an optical multi mode fiber (MMF) determines the properties of the emerging beam. Hence, detailed knowledge of the (transversal) modal content became essential to understand the underlying physical effects. Different approaches were applied to acquire knowledge about modal content of MMFs such as interferometry or M2 respectively S2 measurement. In this paper we present new results concerning the access to full field information of vector beams, emerging from two step-index LMA fibers (V -parameter 3.96 and 4.72, respectively). Thereby, the direct approachable measurement data consists in modally resolved information about polarization state, intermodal power distribution and intermodal phase delay. By means of the reconstructed field, "global" characterizations of the investigated beams, e.g., in form of the widespread beam propagation ratio M2, are possible.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Daniel Flamm ; Siegmund Schröter and Michael Duparré
"Complete description of optical fields propagating in passive LMA fibers regarding amplitude, relative phase delay, and polarization by means of optical correlation filters", Proc. SPIE 7579, Laser Resonators and Beam Control XII, 75790R (February 17, 2010); doi:10.1117/12.845979; http://dx.doi.org/10.1117/12.845979


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