Single grating mirror intracavity stretcher design for chirped pulse regenerative amplification

E. Caracciolo; M. Kemnitzer; M. Rumpel; A. Guandalini; F. Kienle; F. Pirzio; T. Graf; M. Abdou Ahmed; A. Agnesi; Juerg Aus-der-Au

doi:10.1117/12.2078916

20 February 2015 Single grating mirror intracavity stretcher design for chirped pulse regenerative amplification

E. Caracciolo, M. Kemnitzer, M. Rumpel, A. Guandalini, F. Kienle, F. Pirzio, T. Graf, M. Abdou Ahmed, A. Agnesi, Juerg Aus-der-Au

Author Affiliations +

Proceedings Volume 9342, Solid State Lasers XXIV: Technology and Devices; 93421G (2015) https://doi.org/10.1117/12.2078916
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

We demonstrated for the first time, to the best of our knowledge a new intracavity pulse stretching design, employing a single grating-mirror based on a leaky-mode grating-waveguide design. The extremely compact and flexible layout allows for femtosecond pulses to be easily stretched up to nanosecond durations. The stretcher was implemented in a diode-pumped Yb:CALGO regenerative amplifier followed by a standard transmission grating compressor. We demonstrated sub-200 fs long pulses (stretched pulses ≈ 110 ps) with a maximum energy of 205 μJ at 20 kHz repetition rate. As a proof of the robustness and potential energy scaling of leaky-mode grating-waveguide intracavity stretcher, energies up to 700 μJ and 400 ps long pulses before compression at a lower repetition rate of 10 kHz, have been achieved. A simple model is proposed to investigate the cavity behavior in presence of induced spatial chirp.

Citation Download Citation

E. Caracciolo, M. Kemnitzer, M. Rumpel, A. Guandalini, F. Kienle, F. Pirzio, T. Graf, M. Abdou Ahmed, A. Agnesi, and Juerg Aus-der-Au "Single grating mirror intracavity stretcher design for chirped pulse regenerative amplification", Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93421G (20 February 2015); https://doi.org/10.1117/12.2078916

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