Dresden 2011 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 63: Ultrakurze Laserpulse: Erzeugung und Anwendungen 2

Q 63.1: Talk

Friday, March 18, 2011, 10:30–10:45, SCH A215

Generation and Dispersion Management of Femtosecond Laser Pulses — •Andreas Fischer, Konstantin Simeonidis, Alexander Sperl, and Joachim Ullrich — Max-Planck-Institut für Kernphysik

To create few-cycle laser pulses, special techniques have to be employed. One possibility is the spectral broadening of a light pulse by self-phase-modulation (SPM) in a glas capillary tube filled with a noble gas. The dispersion, caused by optical elements, has severe impact on the temporal shape of a few-cycle laser pulse and leads to temporal broadening. Dispersion control is therefore indispensable in such a laser system.

This talk delineates an effective method of simulating the effects of dispersion caused by an optical path, affecting the laser pulse. Using this simulation it is possible to interactively design a pulse compressor, which can quickly be calculated and put into operation. For this method it is vital to precisely know the dispersive behavior of each element. A dispersion measurement instrument has been developed and successfully comissioned. First applications of the simulation, namely the interactive design of a pulse compressor consisting of dispersive mirrors, seem to yield very promising results.