Characteristics of A Frequency-doubled Solid-state Laser with Tunable Pulse Width

Green light pulse lasers have many applications in various fields, and the tunable pulse width of the laser will provide additional parameters for optimizing the effect of the applications. Therefore, in this paper, the characteristics of a frequency-doubled 532 nm solid-state laser with a tunable pulse width were examined in an experiment in which a proposed four-pass optical laser amplifier was employed. The results showed that, for a 1064 nm wavelength laser with pulse widths ranging from 0.55 ns to 1.4 ns, the frequency-doubled 532 nm wavelength laser pulse width was compressed in the ratio of 1.39 to 1.05. The rising and falling edges of the frequency-doubled pulse became steeper.