Measurement of local polarization for multi-mode photonic crystal fibers

Oliver A. Schmidt; Christian Schulze; Daniel Flamm; Michael Duparré

doi:10.1117/12.874596

10 February 2011 Measurement of local polarization for multi-mode photonic crystal fibers

Oliver A. Schmidt, Christian Schulze, Daniel Flamm, Michael Duparré

Proceedings Volume 7914, Fiber Lasers VIII: Technology, Systems, and Applications; 79142E (2011) https://doi.org/10.1117/12.874596
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

Photonic crystal fibers allow the guidance of an advisedly chosen number of modes and a simultaneous realization of large mode areas that are essential for high power fiber lasers. The occurring multi-mode beams have spatially inhomogeneous polarization (e.g. radially polarized light), which is significant for several fiber laser applications. We report on a measurement technique to determine this local property using a modal polarization analysis based on a rapid Stokes parameter measurement combined with a computer-generated hologram. We use this method to obtain and visualize spatially varying polarization ellipses as well as modal polarization states depending on the input polarization.

Citation Download Citation

Oliver A. Schmidt, Christian Schulze, Daniel Flamm, and Michael Duparré "Measurement of local polarization for multi-mode photonic crystal fibers", Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79142E (10 February 2011); https://doi.org/10.1117/12.874596

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