Tunable narrow-band UV laser system pumped by a copper vapour laser

A narrow-band laser system is designed, which produces 10-ns pulses of tunable 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 pumped by a copper vapour laser.