A narrow-band laser system is designed, which produces 10-ns pulses of tuna
ble UV radiation with an average power of 3 W, pulse repetition rate of 12
kHz, and linewidth smaller than 45 MHz, The system uses a cw dye laser as a
master oscillator. Its radiation is amplified by a three-stage dye system
whose output signal is frequency doubled in a BBO crystal, The system is pu
mped by a copper vapour laser.