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Dual-pulse pumping of PSIL-controlled Ti:Sapphire lasers: a technique for realization and control of the pumping

We describe (computer analysis and experimental realization) a developed Nd:YAG laser system, capable of emitting a pair of nanosecond pulses with independently controlled delay and intensity. The output parameters of such a laser in low and high flash lamp pump levels are compared. The possibilities to achieve different temporal distances between the two pulses and different energies per pulse are discussed. The build-up time and levels ratio stability are studied. A method for total output energy optimization is proposed. The behavior of the two-pulse laser output after laser amplification and frequency doubling is discussed. Pure two-pulse Nd:YAG output with pulse distance from 0 to 3 microseconds is demonstrated. The possibility to apply this technique to different laser active media have been discussed as well as the different potential areas for application of a dual pulse laser output.