20-fs 1.6-mJ pulses from a cw-diode-pumped single-stage 1-kHz Yb amplifier

200-fs 2.5-mJ pulses from a fiber-oscillator-seeded DPSS Yb:CaF2 MOPA are spectrally broadened in Ar and recompressed to 20 fs using a pair of LAK14 prisms. Multi-millijoule 12-fs pulses are feasible upon higher-order spectral phase correction. © 2010 Optical Society of America

30-fs 1.6 mJ Pulses at a kHz repetition rate from a single stage DPSS Yb amplifier

200-fs 2.5-mJ pulses from a cw-diode-pumped Yb:CaF2 MOPA are spectrally broadened in Ar and recompressed to 30 fs at 980 nm using a prism pair. Multi-millijoule 12-fs pulses are feasible upon higher-order spectral phase correction. © 2010 Optical Society of America