Naidoo, DarrylLitvin, ILaskin, AForbes, A2014-08-192014-08-192014-02Naidoo, D, Litvin, I, Laskin, A and Forbes, A. 2014. Intra-cavity metamorphosis of a Gaussian beam to flat-top distribution. In: Proceedings of SPIE, Volume 8999, Complex Light and Optical Forces VIII, San Francisco, California, 1 February 2014http://spie.org/Publications/Proceedings/Paper/10.1117/12.2039106http://hdl.handle.net/10204/7610Proceedings of SPIE, Volume 8999, Complex Light and Optical Forces VIII, San Francisco, California, 1 February 2014We explore an intra-cavity beam shaping approach to generate a Gaussian distribution by the metamorphosis of a Gaussian beam into a flat-top distribution on opposing mirrors. The concept is tested external to the cavity through the use of two spatial light modulators (SLM), where the first SLM is used to transform a collimated Gaussian into a flat-top distribution and the second SLM is encoded with the conjugate phase of the flat-top for conversion back to a Gaussian. We implement this intra-cavity selection through the use of two optical elements of the refractive variant that are designed from the phase profiles addressed to the SLMs. We consider a solid-state diode side-pumped laser resonator that consists of two planar mirrors where the refractive optics are positioned at the mirrors. We out couple the Gaussian and show that the output beam size is comparable with the theoretical predictions and that we have an increase in optical brightness when compared to the cavity without any optics.enGaussian beamsFlat-top beamsOptical brightnessConference PresentationNaidoo, D., Litvin, I., Laskin, A., & Forbes, A. (2014). Intra-cavity metamorphosis of a Gaussian beam to flat-top distribution. SPIE Proceedings. http://hdl.handle.net/10204/7610Naidoo, Darryl, I Litvin, A Laskin, and A Forbes. "Intra-cavity metamorphosis of a Gaussian beam to flat-top distribution." (2014): http://hdl.handle.net/10204/7610Naidoo D, Litvin I, Laskin A, Forbes A, Intra-cavity metamorphosis of a Gaussian beam to flat-top distribution; SPIE Proceedings; 2014. http://hdl.handle.net/10204/7610 .TY - Conference Presentation AU - Naidoo, Darryl AU - Litvin, I AU - Laskin, A AU - Forbes, A AB - We explore an intra-cavity beam shaping approach to generate a Gaussian distribution by the metamorphosis of a Gaussian beam into a flat-top distribution on opposing mirrors. The concept is tested external to the cavity through the use of two spatial light modulators (SLM), where the first SLM is used to transform a collimated Gaussian into a flat-top distribution and the second SLM is encoded with the conjugate phase of the flat-top for conversion back to a Gaussian. We implement this intra-cavity selection through the use of two optical elements of the refractive variant that are designed from the phase profiles addressed to the SLMs. We consider a solid-state diode side-pumped laser resonator that consists of two planar mirrors where the refractive optics are positioned at the mirrors. We out couple the Gaussian and show that the output beam size is comparable with the theoretical predictions and that we have an increase in optical brightness when compared to the cavity without any optics. DA - 2014-02 DB - ResearchSpace DP - CSIR KW - Gaussian beams KW - Flat-top beams KW - Optical brightness LK - https://researchspace.csir.co.za PY - 2014 T1 - Intra-cavity metamorphosis of a Gaussian beam to flat-top distribution TI - Intra-cavity metamorphosis of a Gaussian beam to flat-top distribution UR - http://hdl.handle.net/10204/7610 ER -