Tunable picosecond blue and ultraviolet pulses from a diode-pumped laser system seeded by a gain-switched laser diode

摘要

Picosecond pulses emitted from a gain-switched laser diode have been amplified in a Ti:sapphire regenerative amplifier indirectly pumped by a 4-W laser diode. This all-solid-state system produced micro-joule pulses tunable from 803 to 840 nm at repetition rates up to 25 kHz with durations of 70-100 ps. By frequency doubling and tripling the output, we generated blue and LTV pulses tunable from 401 to 420nm and from 268 to 280 nm, respectively. Average powers larger than 4 mW were reached in these two wavelength regions. # 1998 Optical Society of America