Up to now, the development of the first stage of ICF solid state laser driver is to replace the pumping flash lamp by the laser diode which has much better stability and to replace the buik optic modulator by integrated optics and fiber techology for laser pulse forming. We study experimentally the laser pulse forming techology using a laser diode pumped solid state laser and a integrated waveguide modulator. The foundmental results are obtained which will be of great importance to the laser pulse formation of the new ICF laser drive system.