3-7 July 2017
Africa/Johannesburg timezone

The Wigner distribution function in characterising general optical fields of varying coherence

4 Jul 2017, 14:20
20m
A306 (Engineering Building 51)

A306

Engineering Building 51

Oral Presentation Track C - Photonics Photonics

Speaker

Mr Prince Mredlana (Student)

Description

The coherence of optical fields is a defining factor in how they are represented and characterised, in this work we employ the Wigner Distribution Function (WDF) for a generalized optical field characterisation method.  We characterize a Gaussian-Schell model partially coherent beam by determining the beam width, divergence, curvature and beam quality factor of the pure field from the mutual correlation function and its corresponding WDF. The beam is digitally encoded using an SLM. The WDF is a space-frequency representation and in the spatial domain, we find comparable accuracy between the parameters obtained using the pure optical field and the WDF.

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

No

Main supervisor (name and email)<br>and his / her institution

Darryl Naidoo, dnaidoo3@csir.co.za.

CSIR National Laser Centre

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

Msc

Primary author

Mr Prince Mredlana (Student)

Co-authors

Prof. Andrew Forbes (CSIR) Dr Cosmas Mafusire (University of Pretoria) Dr Darryl Naidoo (Council for Scientific and Industrial Research) Mr Nyameko Lisa (CSIR National Laser Centre)

Presentation Materials

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