2 GHz repetition-rate femtosecond blue sources by second harmonic generation in a resonantly enhanced cavity

Liu, Tzu-Ming; Yu, Cheng-Ta; Sun, Chi-Kuang
February 2005
Applied Physics Letters;2/7/2005, Vol. 86 Issue 6, p061112
Academic Journal
We report a 2 GHz repetition-rate, all-solid-state femtosecond blue source. Pumped by a 740 mW femtosecond Ti:sapphire laser with the same repetition rate, 150 mW femtosecond pulses at 409 nm can be efficiently generated from the external resonant cavity with a lithium triborate crystal.


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