Pre-distorted modal-modulation has been used to carry over 200 channels through a 1km multi-mode fibre in the face of modal and polarisation cross-talk. In the demonstration, by the US University of ...

Modulation is applied either to Wave 1 alone or with Wave 2 modulating Wave 1. Although more common forms of modulation such as Hard Sync, FM, Ring Modulation and Bit Crushing are included, there are ...