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Q: Fachverband Quantenoptik und Photonik
Q 3: Ultrashort Laser Pulses
Q 3.4: Talk
Monday, March 5, 2018, 11:15–11:30, K 0.023
Sub-10-fs visible pulses at 1MHz repetition rate from an optical-parametric amplifier — •Sven Kleinert1, Ayhan Tajalli1, Bernhard Kreipe1, David Zuber1, José R. C. Andrade1, and Uwe Morgner1,2,3 — 1Institute of Quantum Optics, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany — 2Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany — 3Hannoversches Zentrum für Optische Technologien, Leibniz Universiät Hannover, Nienburger Straße 17, 30167 Hannover, Germany
We present a compact optical-parametric amplification system (OPA) operating in the visible spectral range, delivering pulses with a Fourier-limited pulse duration below 10fs at a repetition rate of 1MHz. To this end, the output of a mode-locked chirped-pulse oscillator with cavity dumping is amplified in a single-stage rod-type fiber chirped-pulse amplifier delivering up to 40W of average power. These pulses enable the generation of energetic pump radiation for the OPA in the blue range, as well as a broadband supercontinuum seed in the visible spectral range. The OPA delivers more than 600nJ of pulse energy featuring a highly applicable source for different areas of strong-field studies where a high repetition rate is beneficial.