Abstract

We demonstrate a 200-Gbit/s space-division multiplexing system using two Laguerre–Gaussian (LG) beams with different radial indices (LG=0,p=0 and LG=0,p=1). With a proper design of the radial change of the demultiplexing pattern, the channel crosstalk could be minimized and both channels could achieve a bit error rate of 3.8×103. Moreover, the multiplexing of four LG beams with different azimuthal indices and different radial indices (e.g., LG=0,p=0, LG=0,p=1, LG=1,p=0, and LG=1,p=1 beams) is also demonstrated with a <12  dB channel crosstalk, potentially enabling a 400-Gbit/s data transmission.

© 2016 Optical Society of America

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