pulsed laser 

https://doi.org/10.1351/goldbook.08532
Laser system that emits electromagnetic radiation in the form of pulses of a defined and constant duration.
Note:
A pulsed laser produces no continuous optical wave.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 730 [Terms] [Paper]