High-power 100-fs pulse generation by frequency doubling of an erbium ytterbium-fiber master oscillator power amplifier.
Frequency doubling of an erbium-ytterbium-fiber master-oscillator-power-amplifier system is demonstrated. Simultaneous amplification and pulse compression in multimode erbium-ytterbium-doped fibers produces high-quality near-diffraction and near-bandwidth-limited 100-fs pulses at a wavelength of 1.62microm with an average power of 230 mW at a repetition rate of 52 MHz. Periodically poled LiNbO(3) allows for frequency doubling with a conversion efficiency of 51%, producing near-bandwidth-limited 105-fs pulses with an average power of 117 mW and a pulse energy of 2.3 nJ at a wavelength of 810 nm.
Hofer
M
M
Fermann
M E
ME
Galvanauskas
A
A
Harter
D
D
Windeler
R S
RS