A single-outlet fluidic oscillator is designed and used as actuators for controlling flow separation, wing tip vortex and cavity resonance suppression. Experiments on the oscillator characteristics are conducted to measure the frequency-flux relations and the flow field of the outlet of the oscillators by means of flow visualization, sound level meter, hot-wire anemometer and PIV.Experimental results demonstrate that the air jets can sweep and so fan out in an angle of nearly 90°, and the sweeping frequencies reach the order of magnitude of 103 Hz. The jets can be fan out on the whole plane of the outlet equally, and the velocity fluctuation gets the same order of magnitude as the mean velocity which is from a few meters per second to about ten on low flux conditions. The outlet jets have enough kinetic energy to influence a larger flow field.