Abstract

We describe an oscillator–amplifier laser system for the generation of high-power femtosecond pulses near 1.25 µm based on chromium-doped forsterite. Chirped-pulse amplification at a 1-kHz repetition rate raises the pulse energy to >350 µJ. The nearly transform-limited 200-µJ, 135-fs-long recompressed pulses have a peak power of ≈1.5 GW.

© 1999 Optical Society of America

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