High stability and output energy of optical parametric oscillator by square pulse laser pumped

Abstract

A high stability and output energy of wide band tunable intelligence optical parametric oscillator is developed by which square pulse YAG laser in temporal domain pumped. By means of the smooth cavity dumping, the reduction of output loss compensates the photon decrease in cavity. In experiment, we have investigated energy conversion efficiency to compare the Gaussian pulse with square pulse and obtained the 16.5 percent to 34.5 percent energy conversion efficiency of the optical parametric oscillator by the square pulse pumped.