Experiments are described in which nitrogen and neon lasers are excited by a wave of current excitation which effectively travels from one end of the laser to the other with its velocity matching that of the stimulated emission. This type of excitation is accomplished with a low‐impedance flat‐plate Blumlein pulse generator. The power output in the direction of the wave of excitation is at least ten times that in the other direction. A 2.5‐MW pulse of about 4‐nsec duration is obtained with nitrogen and a 190‐kW pulse of about 1.5 nsec with neon.