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Proceedings Paper

Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser
Author(s): Sandile Ngcobo; Kamel Ait-Ameur; Igor Litvin; Abdelkrim Hasnaoui; Andrew Forbes
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Paper Abstract

In this paper we experimentally demonstrate a simple laser cavity that produces spatial tuneable laser modes from a Gaussian beam to a Flat-top beam and a Donut-beam. The laser cavity contains an opaque ring and an adjustable circular aperture that could be varied and thus allows for tuneability of the cavity without it being realigned. A digital laser with an intra-cavity spatial light modulator is used to demonstrate and confirm the predicated properties of the resonator.

Paper Details

Date Published: 4 March 2014
PDF: 5 pages
Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 89601L (4 March 2014); doi: 10.1117/12.2038960
Show Author Affiliations
Sandile Ngcobo, Council for Scientific and Industrial Research (South Africa)
Univ. of KwaZulu-Natal (South Africa)
Kamel Ait-Ameur, ENSICAEN (France)
Igor Litvin, Council for Scientific and Industrial Research (South Africa)
Abdelkrim Hasnaoui, Univ. des Science et de la Technologie Houari Boumediene (Algeria)
Andrew Forbes, Council for Scientific and Industrial Research (South Africa)
Univ. of KwaZulu-Natal (South Africa)


Published in SPIE Proceedings Vol. 8960:
Laser Resonators, Microresonators, and Beam Control XVI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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