Speaker
Mr
Christian Schulze
(Institute of Applied Optics, Abbe Center of Photonics, Friedrich Schiller University Jena, Germany)
Abstract content <br>(Max 300 words)<br><a href="http://indico.saip.org.za/getFile.py/access?resId=0&materialId=2&confId=28" target="_blank">Special Chars</a>
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.
Primary author
Mr
Christian Schulze
(Institute of Applied Optics, Abbe Center of Photonics, Friedrich Schiller University Jena, Germany)
Co-authors
Prof.
Andrew Forbes
(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)
Mr
Darryl Naidoo
(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)
