论文信息 - Experimental demonstration of free-space optical communications using OFDM-QPSK/16QAM-carrying fractional orbital angular momentum (OAM) multiplexing

Experimental demonstration of free-space optical communications using OFDM-QPSK/16QAM-carrying fractional orbital angular momentum (OAM) multiplexing

We report free-space optical communications exploiting fractional orbital angular momentum (OAM) multiplexing. Using OFDM-QPSK/16QAM signals over fractional OAM beams with varied channel spacing, fractional OAM communications are demonstrated in the experiment even with a small OAM channel spacing of 0.6.

[1] P. Sillard,et al. Few-Mode Fibers for Mode-Division-Multiplexed Systems , 2014, Journal of Lightwave Technology.

[2] A. Willner,et al. Terabit free-space data transmission employing orbital angular momentum multiplexing , 2012, Nature Photonics.

[3] Robert W Boyd,et al. Efficient separation of the orbital angular momentum eigenstates of light , 2013, Nature Communications.

[4] Masato Mizoguchi,et al. Ultra-High Capacity WDM Transmission Using Spectrally-Efficient PDM 16-QAM Modulation and C- and Extended L-Band Wideband Optical Amplification , 2011, Journal of Lightwave Technology.

[5] B Zhu,et al. Spectrally Efficient Long-Haul WDM Transmission Using 224-Gb/s Polarization-Multiplexed 16-QAM , 2011, Journal of Lightwave Technology.

[6] A. Willner,et al. Terabit-Scale Orbital Angular Momentum Mode Division Multiplexing in Fibers , 2013, Science.

[7] L. Nelson,et al. Space-division multiplexing in optical fibres , 2013, Nature Photonics.

[8] Ting Wang,et al. 64-Tb/s, 8 b/s/Hz, PDM-36QAM Transmission Over 320 km Using Both Pre- and Post-Transmission Digital Signal Processing , 2011, Journal of Lightwave Technology.

[9] J. Cariñe,et al. Long-distance distribution of genuine energy-time entanglement , 2013, Nature Communications.