2-6 September 2013
STIAS Conference Centre
Africa/Johannesburg timezone
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Modal decomposition for wavefront reconstruction

Presented by Mr. Christian SCHULZE on 3 Sep 2013 from 14:40 to 15:20
Track: Oral Presentation

Abstract content

We present a novel method for measuring the wavefront of laser beams based on modal decomposition using correlation filters. Accordingly, the beam under test is correlated with the modes encoded into the filter, which enables the reconstruction of the optical field in amplitude and phase and consequently the determination of Poynting vector and wavefront. The method is applied to aberrated free space Gaussian beams and beams emanating from optical fibers, for both, scalar and vector beams. Results are compared to those of a Shack-Hartmann wavefront sensor revealing excellent agreement, hence proving the high fidelity of wavefront reconstruction.

Place

Location: STIAS Conference Centre
Address: Stellenbosch Institute for Advanced Study Wallenberg Research Centre 10 Marais Road Stellenbosch South Africa www.stias.ac.za
Room:


Primary authors

  • Mr. Christian SCHULZE Institute of Applied Optics, Abbe Center of Photonics, Friedrich Schiller University Jena, Germany
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Co-authors

  • Mr. Darryl NAIDOO Council for Scientific and Industrial Research, National Laser Centre
  • Mr. Daniel FLAMM Institute of Applied Optics, Abbe Center of Photonics, Friedrich Schiller University Jena, Germany
  • Prof. Andrew FORBES Council for Scientific and Industrial Research, National Laser Centre
  • Dr. Michael DUPARRé Institute of Applied Optics, Abbe Center of Photonics, Friedrich Schiller University Jena, Germany
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