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Experimental setup. PC: polarization control; EDFA: erbium doped fiber amplifier; FBG: fiber Bragg grating. The inset shows the group delay introduced by the fiber Bragg grating and its reflection bandwidth.
(Color online) Spectral intensity and phase of the laser pulses after the chalcogenide fiber. Solid line: retrieved from the FROG measurements. Dashed line: Numerical simulations. Dotted: Simulations excluding GVD showing high spectral modulation. Dash-dot: input spectrum.
(Color online) Temporal intensity and phase of the laser pulses after the chalcogenide fiber. Solid line: Retrieved from the FROG measurements. Dashed line: numerical simulations. Dotted: simulations excluding GVD showing highly nonlinear dispersion.
(Color online) Experimentally generated temporal intensity and phase of the compressed pulses, together with a Gaussian fit to the intensity (dotted line). The inset shows the temporal intensity of the compressed pulse without high GVD in the fiber leading to a considerable pulse pedestal and high temporal sidelobes.
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