Mode Division Multiplexing of 2 x 100Gb/s Channels using an LCOS based Spatial Modulator
15 February 2012
We demonstrate one of the first experiments of optical transmission based on mode-division multiplexing over a few-mode optical fiber. The mode multiplexer and demultiplexer are based on a programmable liquid crystal on silicon panel. Using this system, we transmit two 100Gb/s PDM-QPSK data streams modulated on two different modes of the prototype fewmode fiber. At the receiver, a set of optical coherent detectors with DSP including MIMO algorithms recover the signal and permit to mitigate the cross-talk stemming from imperfect mode conversion.
