Abstract

1-mJ pulses at 1 kHz compressable to 115 fs are extracted from cw-diode-pumped Yb<sup>3+</sup>Na<sup>+</sup>CaF<sup>2</sup>regenerative amplifier cooled at -130°C. Further output energy scaling is currently prevented by AR coating burn of the laser crystal.

© 2009 Optical Society of America

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