Nature: Optical Communication at Record-High Speed

Soliton frequency combs, generated in silicon nitride microresonators, are used for massively parallel data transmission via various frequency channels.

Soliton frequency combs, generated in silicon nitride microresonators, are used for massively parallel data transmission via various frequency channels.

September 26, 2017 | Source: Karisruhe Institute of Technology (KIT), kit.edu, June 2017, Monika Landgraf

Researchers at Karlsruhe Institute of Technology (KIT) and École Polytechnique Fédérale de Lausanne (EPFL) have set a new record for optical data transmission: As reported in Nature, the team exploits optical solitons circulating in silicon nitride microresonators to generate broadband optical frequency combs. Two such superimposed frequency combs enable massive parallel data transmission on 179 wavelength channels at a data rate of more than 50 terabits per second.