Investigation of Effective Parameters on PulsedNd:YAG Passive Q-Switched Laser

In this paper, we report the experimental results of a pulsed flash lamped Nd:YAG laser at wavelength of 1064 nm and Qswitched by Cr4+:YAG solid state saturable absorber. We have obtained the output energy (E) and pulse-width of this laser for various initial transmissions of this saturable absorber. Furthermore, the effect of reflectivity of the output coupler (R), diameter of the rod (d), and optical length of the cavity (l) on the laser output has been investigated. We have used the corner cube as a back mirror. We have obtained pulse-width 15ns with 31 mJ output energy. We have also analyzed this laser theoretically which agrees well with our corresponding experimental results.