Orbital angular momentum mode multiplexer based on multimode micro-ring resonator with angular gratings

@article{Li2016OrbitalAM,
  title={Orbital angular momentum mode multiplexer based on multimode micro-ring resonator with angular gratings},
  author={Shimao Li and Charalambos Klitis and Zhichao Nong and Shengqian Gao and Marc Sorel and Siyuan Yu and Xinlun Cai},
  journal={2016 Conference on Lasers and Electro-Optics (CLEO)},
  year={2016},
  pages={1-2}
}
We demonstrate silicon photonic orbital angular momentum multiplexing devices based on mulitmode microring resonator. Up to four optical beams carrying different orbital angular momentum states can be selectively excited from different input ports.