Abstract
Post-compression of high average power picosecond pulses for few cycle generation and FEL pump-probe experiments
Highlights
Reconstructed spectral and temporal intensity and phase profiles together with the corresponding measured spectra after both multi-pass cells (MPC) and at the laser output
External spectral broadening concepts can be employed for pulse post-compression, offering the possibility to combine ultrashort pulse durations, high repetition rates and milli-joule level pulse energies
A recently developed post-compression scheme based on spectral broadening in gas-filled multi-pass cells (MPC), shows good prospects for peak- and average-power scaling [1]
Summary
Reconstructed spectral and temporal intensity (solid) and phase (dashed) profiles together with the corresponding measured spectra after both MPCs (dotted) and at the laser output (dark blue). Ultrafast Ytterbium-based (Yb) amplifiers can be power-scaled into the kilowatt (kW) regime, offering great potential for applications where repetition rate scaling of ultrafast lasers beyond the average power limits of Ti:sapphire technology is needed. The gain bandwidth of Yb media limits the output pulse durations of such amplifiers to a few 100s of fs to 1 ps.
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