Fig. 2. Output 486.1 nm laser pulse energy as a function of the pump energy with cavity length of 60 mm.
Fig. 3. Near-field beam profile of OPO output laser with pulse energy of 62 mJ.
Fig. 4. Conversion efficiency and beam divergence angle as a function of the OPO cavity length.
Fig. 5. Pulse temporal profiles of OPO pump laser and output laser.