opo88

Fig. 1 shows the experimental setup of the PPMgLN OPO-seeded OPA system. A 9 W electro-optical Q-switched Nd:YAG laser with a pulse width of 11.7 ns, a PRF of 2 kHz and a M 2 less than 1.8, was split into two branches by a plane mirror M1 (transmittance equals 20% at 1064 nm) for the pumps of the OPO and OPA. fiat 500 x usata