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Supercontinuum pulse shaping in the few-cycle regime

Optics Express, ISSN: 1094-4087, Vol: 21, Issue: 5, Page: 5536-5549
2013
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Article Description

The synthesis of nearly arbitrary supercontinuum pulse forms is demonstrated with sub-pulse structures that maintain a temporal resolution in the few-cycle regime. Spectral broadening of the 35 fs input pulses to supercontinuum bandwidths is attained in a controlled two-stage sequential filamentation in air at atmospheric pressure, facilitating a homogeneous power density over the full spectral envelope in the visible to near infrared spectral range. Only standard optics and a liquid crystal spatial light modulator (LC-SLM) are employed for achieving pulse compression to the sub 5 fs regime with pulse energies of up to 60 mJ and a peak power of 12 GW. This constitutes the starting point for further pulse form synthesis via phase modulation within the sampling limit of the pulse shaper. Transient grating frequency-resolved optical gating (TG-FROG) allows for the characterization of pulse forms that extend over several hundred femtoseconds with few-cycle substructures. © 2013 Optical Society of America.

Bibliographic Details

Hagemann, Franz; Gause, Oliver; Wöste, Ludger; Siebert, Torsten

The Optical Society

Physics and Astronomy

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