100 Tbit/s free-space data link enabled by three-dimensional multiplexing of orbital angular momentum, polarization, and wavelength.

@article{Huang2014100TF,
  title={100 Tbit/s free-space data link enabled by three-dimensional multiplexing of orbital angular momentum, polarization, and wavelength.},
  author={Hao Huang and Guodong Xie and Yan Yan and Nisar Ahmed and Yongxiong Ren and Yang Yue and Dvora Rogawski and Moshe Willner and Baris I. Erkmen and Kevin M. Birnbaum and Samuel Dolinar and Martin P. J. Lavery and Miles J. Padgett and Moshe Tur and Alan E. Willner},
  journal={Optics letters},
  year={2014},
  volume={39 2},
  pages={
          197-200
        }
}
We investigate the orthogonality of orbital angular momentum (OAM) with other multiplexing domains and present a free-space data link that uniquely combines OAM-, polarization-, and wavelength-division multiplexing. Specifically, we demonstrate the multiplexing/demultiplexing of 1008 data channels carried on 12 OAM beams, 2 polarizations, and 42 wavelengths. Each channel is encoded with 100 Gbit/s quadrature phase-shift keying data, providing an aggregate capacity of 100.8 Tbit/s (12×2×42×100… 

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