? ? ? ?When excimer lasers are used in measurement or amplifier applications, it is necessary to control the excimer laser to emit laser light through an external signal. Shengfang Technology has successfully developed a low-jitter, temperature-drift-free excimer laser light source. Under the control of a DG645 signal generator signal, the jitter between the external signal and the laser pulse is 5ns. This laser has passed customer acceptance and has been successfully applied to wind tunnel wind speed measurement.