Ngcobo, SandileAit-Ameur, KLitvin, IHasnaoui, AForbes, A2014-08-082014-08-082014-02Ngcobo, S, Ait-Ameur, K, Litvin, I, Hasnaoui, A and Forbes, A. 2014. Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser. In: Proceedings of SPIE, Laser Resonators, Microresonators, and Beam Control XVI, San Francisco, California, United States, 1 February 2014http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1840887http://hdl.handle.net/10204/7579Proceedings of SPIE, Laser Resonators, Microresonators, and Beam Control XVI, San Francisco, California, United States, 1 February 2014In 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.enLaser beam shapingLaser resonatorsSpatial light modulatorsInvariant optical fieldsConference PresentationNgcobo, S., Ait-Ameur, K., Litvin, I., Hasnaoui, A., & Forbes, A. (2014). Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser. SPIE Proceedings. http://hdl.handle.net/10204/7579Ngcobo, Sandile, K Ait-Ameur, I Litvin, A Hasnaoui, and A Forbes. "Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser." (2014): http://hdl.handle.net/10204/7579Ngcobo S, Ait-Ameur K, Litvin I, Hasnaoui A, Forbes A, Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser; SPIE Proceedings; 2014. http://hdl.handle.net/10204/7579 .TY - Conference Presentation AU - Ngcobo, Sandile AU - Ait-Ameur, K AU - Litvin, I AU - Hasnaoui, A AU - Forbes, A AB - 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. DA - 2014-02 DB - ResearchSpace DP - CSIR KW - Laser beam shaping KW - Laser resonators KW - Spatial light modulators KW - Invariant optical fields LK - https://researchspace.csir.co.za PY - 2014 T1 - Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser TI - Tuneable Gaussian to flat-top resonator by amplitude beam shaping using a digital laser UR - http://hdl.handle.net/10204/7579 ER -