4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
The Proceedings of SAIP2016 published on 24 December 2017
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The Wigner distribution function in modal characterisation

Presented by Mr. Prince MREDLANA on 6 Jul 2016 from 16:10 to 18:00
Type: Poster Presentation
Track: Track C - Photonics
Board #: C.263

Abstract

We investigate a novel approach to characterise an optical field employing a Wigner distribution function with a modal decomposition technique. Optical fields are typically characterised through their phase, beam size, far field beam divergence, beam quality and constituent modal components where a variety of measurement techniques are required to obtain the above parameters. These techniques include a modal decomposition that uses a superposition of orthogonal functions to determine constituent modal components and a knife-edge method to determine beam size by the use of a scanning slit and a detector. The use of the Wigner distribution function together with the modal decomposition is an approach to optimally obtain the various beam parameters in a single set of measurements. We demonstrate a mathematical representation of the approach and highlight the experimental procedure in modal characterisation.

Award

Yes

Level

Msc

Supervisor

Darryl Naidoo, dnaidoo3@csir.co.za, CSIR, National laser centre.

Paper

No

Permission

No

Place

Location: Kramer Law building
Address: UCT Middle Campus Cape Town
Room:


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