High-order coherent communications using mode-locked dark-pulse Kerr combs from microresonators.

ABSTRACT: Microresonator frequency combs harness the nonlinear Kerr effect in an integrated optical cavity to generate a multitude of phase-locked frequency lines. The line spacing can reach values in the order of 100 GHz, making it an attractive multi-wavelength light source for applications in fiber-optic communications. Depending on the dispersion of the microresonator, different physical dynamics have been observed. A recently discovered comb state corresponds to the formation of mode-locked dark pulses in a normal-dispersion microcavity. Such dark-pulse combs are particularly compelling for advanced coherent communications since they display unusually high power-conversion efficiency. Here, we report the first coherent-transmission experiments using 64-quadrature amplitude modulation encoded on

SUBMITTER: Fulop A 

PROVIDER: S-EPMC5913129 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature