8-12 July 2013
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=13&confId=32"><font color=#ff0000>SAIP2013 PROCEEDINGS AVAILABLE</font></a>

Tuneable Gaussian to Flat-top resonator by amplitude beam shaping

9 Jul 2013, 17:40
Poster Presentation Track C - Photonics Poster1


Mr Sandile Ngcobo (CSIR)

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


Abstract content <br> &nbsp; (Max 300 words)

We outline a simple laser cavity comprising an opaque ring and a circular aperture that is capable of producing spatially tuneable laser modes, from a Gaussian beam to a Flat-top beam. The tune-ability is achieved by varying the diameter of the aperture and thus requires no realignment of the cavity. We demonstrate this principle using a digital laser with an intra-cavity spatial light modulator, and confirm the properties of the resonator experimentally.

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


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

Prof. Andrew Forbes

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


Primary author


Prof. Andrew Forbes (CSIR) Prof. Igor Litvin (CSIR) Prof. Kamel Ait-Ameur (Université de Caen)

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