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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster: Photonics, laser development and applications, ultrashort laser pulses, quantum effects

Q 30.57: Poster

Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais

A 20 kHz carrier-envelope phase-stabilized non-collinear optical parametric chirped-pulse amplifier — •Daniel Nürenberg, Jiaan Zheng, Wataru Kobayashi, and Helmut Zacharias — Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany

Parametric amplification is an ideal tool for sensitive carrier-envelope phase (CEP) stable pulses, because of the lower thermal deposition in the gain medium and thus lower thermal fluctuations compared to conventional laser amplification. Our 20 kHz non-collinear optical parametric chirped-pulse amplifier (OPCPA) delivers 10 fs long pulses with an energy of 125 µJ each [1,2]. The system is equipped with a CEP-stabilized Ti:sapphire seed oscillator. We measure the relative CEP of the amplified pulses with an f-2f interferometer. For short-term operation it is sufficient to stabilize only the seed laser. To reach long term CEP-stability we tested different methods for a slow feedback-loop and finally use a feedback to the locking-electronics of the seed-oscillator.
J. Zheng et al. Proc. SPIE 8699 (2013), 86990U-1
J. Zheng et al.:"Visualization of high-order dispersions for few-cycle pulse compression" accepted for Appl. Phys. B (2013)