50 kHz, 50 ns UV pulse generation by diode pumped frequency doubling Pr3+:YLF Q switch laser with a Cr4+:YAG saturable absorber.
We demonstrate intracavity second harmonic generation at 320 nm of a diode pumped praseodymium doped YLF laser Q switched by a Cr4+:YAG crystal. By employing two 3.5 W high power blue InGaN diode lasers as the pump source, we obtained 50 ns Q switched pulses with a pulse energy of 1.54 mJ at a repetition rate of 50 kHz. A rate equation analysis shows good agreement with the experimental results.
Applied optics