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Shaper-based characterization and compression of the multi-soliton output of a large-mode area photonic-crystal fiber pumped at 1550 nm is presented. Spectral phase correction of each soliton in the output results in sub-30 fs pulses.
We present pump-probe measurements that reveal significant changes in the group delay dispersion of a femtosecond laser pulse being controlled by the relative delay between two pulses. We suggest applications for this time-domain shaping approach.
The optical Kerr effect (OKE) produces an intensity dependent refractive index change which gives rise to self-phase modulation (SPM). SPM leads to changes in laser pulse duration by affecting the phase of the laser pulse. Here we explore the transient behavior of fused silica and find that the OKE-induced phase changes are accompanied by significant changes in the magnitude and sign of the group...
We demonstrate the measurement of transient dispersion in fused silica by RT-MIIPS. The results are validated via Fourier Transform Spectral Interferometry. The observed dispersion modulation is explained within a theoretical model.
Phase measurements of a laser source based on generation of frequency comb in highly-nonlinear fiber were performed via line-by-line pulse shaping. Design optimization and compression of second order distortion allowed generation of sub-50 fs pulses.
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