In this letter, the thin film dye laser with DFB oscillator, amplifier and mode filter has been studied. The system is simply constructed on the anisotropic crystal prism such as KDP and operates as a compact tunable solid dye laser.

In this letter, to improve the beam quality of the thin film energy transfer dye laser (thin film ETDL), DFB oscillator-amplifier system of it has been studied. This system is simply constracted on the one prism and operates as a compact solid dye laser under N2 laser pumping.