An ultrafast laser is a type of laser that emits light pulses with extremely short durations, typically in the range of femtoseconds (10^-15 seconds) to picoseconds (10^-12 seconds). These brief pulses allow for precise control over light-matter interactions, making ultrafast lasers valuable in various scientific and industrial applications, such as material processing and medical imaging. Due to their rapid pulse duration, ultrafast lasers can capture fast phenomena, like chemical reactions and electron movements, in real-time. This capability has led to advancements in fields like photochemistry, biophysics, and optical communications, enhancing our understanding of fundamental processes and improving technology.