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Fig. 2 | PhotoniX

Fig. 2

From: From spectral broadening to recompression: dynamics of incoherent optical waves propagating in the fiber

Fig. 2

Dynamics of an incoherent wave propagating in the normal dispersion regime of optical fiber. Temporal intensity profiles and spectrograms of the optical field at different propagation distances (with 0.1 nm initial FWHM linewidth and 1.2 W input power): A Input. B 0.6 km. C 1.2 km. D 2 km. E 5 km. F 35 km. The upper inset of each picture shows the temporal intensity profile and the lower one depicts the corresponding spectrogram. The white dashed rectangular in (C) illustrates the GVD-assisted IFWM, which forms a bridge-like area in the spectrogram. The red dashed rectangular in (D) highlights the regenerated central-frequency components

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