8-12 July 2013
Africa/Johannesburg timezone
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Tuneable Gaussian to Flat-top resonator by amplitude beam shaping

Presented by Mr. Sandile NGCOBO on 9 Jul 2013 from 17:40 to 18:40
Type: Poster Presentation
Session: Poster1
Track: Track C - Photonics

Abstract

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.

Award

yes

Level

PhD

Supervisor

Prof. Andrew Forbes aforbes@csir.co.za

Paper

No

Primary authors

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Co-authors

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