Visualization 2: High-order optical vortex generation in a few-mode fiber via cascaded acoustically driven vector mode conversion Wending Zhang Ligang Huang Keyan Wei Peng Li Biqiang Jiang Dong Mao Feng Gao Ting Mei Guoquan Zhang Jianlin Zhao 10.1364/OL.41.005082.v002 https://opticapublishing.figshare.com/articles/media/Visualization_2_High-order_optical_vortex_generation_in_a_few-mode_fiber_via_cascaded_acoustically_driven_vector_mode_conversion/4920845 The right-handed circularly polarized mode was converted to -1 order vortex mode, which was further converted to -2 order vortex mode, as the RF source was tuned on and as its frequency was varied. Originally published in Optics Letters on 01 November 2016 (ol-41-21-5082) 2016-11-01 00:00:00 vortex generation -2 order vortex mode 01 November 2016 order vortex mode RF source Optics Letters few-mode fiber vector mode conversion