7 September 2011 Intracavity vortex beam generation
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In this paper we explore vortex beams and in particular the generation of single LG0l modes and superpositions thereof. Vortex beams carry orbital angular momentum (OAM) and this intrinsic property makes them prevalent in transferring this OAM to matter and to be used in quantum information processing. We explore an extra-cavity and intra-cavity approach in LG0l mode generation respectively. The outputs of a Porro-prism resonator are represented by "petals" and we show that through a full modal decomposition, the "petal" fields are a superposition of two LG0l modes.
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Darryl Naidoo, Kamel Aït-Ameur, Andrew Forbes, "Intracavity vortex beam generation", Proc. SPIE 8130, Laser Beam Shaping XII, 813009 (7 September 2011); doi: 10.1117/12.902330; https://doi.org/10.1117/12.902330

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