title: Mode analysis with a spatial light modulator as a correlation filter.
abstract: A procedure for the real-time analysis of laser modes using a phase-only spatial light modulator is outlined. The procedure involves encoding into digital holograms by complex amplitude modulation a set of orthonormal basis functions into which the initial field is decomposed. This approach allows any function to be encoded and refreshed in real time (60 Hz). We implement a decomposition of guided modes propagating in optical fibers and show that we can successfully reconstruct the observed field with very high fidelity.
authors: Institute of Applied Optics, Friedrich Schiller University Jena, Fröbelstieg 1, D-07743 Jena, Germany. daniel.flamm@uni‐jena.de
authors: Daniel
authors: D
authors: Flamm
authors: Darryl
authors: D
authors: Naidoo
authors: Christian
authors: C
authors: Schulze
authors: Andrew
authors: A
authors: Forbes
authors: Michael
authors: M
authors: Duparré