Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser

Sandile Ngcobo; Kamel Ait-Ameur; Igor Litvin; Abdelkrim Hasnaoui; Andrew Forbes

doi:10.1117/12.2038960

4 March 2014 Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser

Sandile Ngcobo, Kamel Ait-Ameur, Igor Litvin, Abdelkrim Hasnaoui, Andrew Forbes

Proceedings Volume 8960, Laser Resonators, Microresonators, and Beam Control XVI; 89601L (2014) https://doi.org/10.1117/12.2038960
Event: SPIE LASE, 2014, San Francisco, California, United States

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.

Citation Download Citation

Sandile Ngcobo, Kamel Ait-Ameur, Igor Litvin, Abdelkrim Hasnaoui, and Andrew Forbes "Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser", Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 89601L (4 March 2014); https://doi.org/10.1117/12.2038960

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