Generation and temporal compression of second harmonic pulses of spectrally broadened radiation of a femtosecond ytterbium laser
Losev L. L.1, Pazyuk V. S.1
1Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
Email: lllosev@mail.ru
It is shown that the use of a second harmonic generation scheme with two sequentially located KDP crystals allows achieving the conversion efficiency of the chirped pulse of ytterbium laser radiation of up to 50 %. The obtained second harmonic pulses with a spectrum corresponding to a transform-limited pulse with a duration of 7 fs are compressed to 9 fs. Keywords: second harmonic, femtosecond lasers, pulse compression.
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