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Proceedings Paper

Single grating mirror intracavity stretcher design for chirped pulse regenerative amplification
Author(s): E. Caracciolo; M. Kemnitzer; M. Rumpel; A. Guandalini; F. Kienle; F. Pirzio; T. Graf; M. Abdou Ahmed; A. Agnesi; Juerg Aus-der-Au
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Paper 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.

Paper Details

Date Published: 20 February 2015
PDF: 7 pages
Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93421G (20 February 2015); doi: 10.1117/12.2078916
Show Author Affiliations
E. Caracciolo, Spectra-Physics Rankweil (Austria)
Univ. degli Studi di Pavia (Italy)
M. Kemnitzer, Spectra-Physics Rankweil (Austria)
M. Rumpel, Univ. Stuttgart (Germany)
A. Guandalini, Spectra-Physics Rankweil (Austria)
F. Kienle, Spectra-Physics Rankweil (Austria)
F. Pirzio, Univ. degli Studi di Pavia (Italy)
T. Graf, Univ. Stuttgart (Germany)
M. Abdou Ahmed, Univ. Stuttgart (Germany)
A. Agnesi, Univ. degli Studi di Pavia (Italy)
Juerg Aus-der-Au, High Q Laser, a Newport Corp. Brand (Austria)

Published in SPIE Proceedings Vol. 9342:
Solid State Lasers XXIV: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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