  We experimentaly investigate higher-order seeded modulation instability in an
optical fiber experiment. The recirculating loop configuration with round-trip
losses compensation enables the observation in single-shot of the
spatio-temporal evolution of an initially modulated continuous field revealing
intricate yet deterministic dynamics. By tuning the modulation period, a
continuous transition between perfectly coherent and purely noise-driven
dynamics is observed that we characterise by means of a statistical study.
