Antikainen, Aku Agrawal, Govind Spectrogram animation, 15.5 µm core separation The total spectrogram over all cores of a hexagonal seven-core fiber at various propagation distances. The cores have a diameter of 6 µm and are separated by 15.5 µm. The input pulse is a 15 kW 100 fs sech-pulse launched in the center core. Fiber Optics;Nonlinear fiber optics;Supercontinuum;multi-core fiber 2019-10-01
    https://opticapublishing.figshare.com/articles/media/Spectrogram_animation_15_5_m_core_separation/9730568
10.6084/m9.figshare.9730568.v1