Does the laser sword in the movie exist in reality, or can it be made in the future?

Laser sword is a kind of weapon often used in science fiction movies. In reality, there is no such weapon at present, and it is not as easy to use as in movies. Because the laser hurts badly, it may not hurt the other side, so I will get hurt first. As for whether it can be made in the future, it is almost certain. Laser guns have been used in medical treatment, military zones and other fields, and it is not impossible to be used as a common self-defense weapon in the future, and it is too cool-turning on the switch is a gorgeous lightsaber, which makes you excited when you think about it, and it is estimated that other protective functions will be added.