Temperature tuned distributed feedback dye laser with high repetition rate.

A pulsed subnanosecond laser system is described which is tunable over the spectral range from 450 to 650 nm with a bandwidth of ~0.006 nm and can be operated with a repetition rate of up to 200 Hz. It consists of a mirror tuned distributed feedback dye laser which is directly pumped by a XeCl excimer laser. Fine tuning and accurate stabilization of the dye laser wavelength are performed by electronically controlling the temperature of the dye liquid. The long-time stability of the laser wavelength is 0.0028 nm; this is achieved by a novel mechanical and electronic arrangement.