Suitcase-sized laser weapon takes down drones in Australian Army tests

What are the options to fight an attacking swarm of cheap drones? Lasers, shot guns, ???

"... lasers have the advantages of engaging multiple targets at the speed of light with an infinite number of rounds for about a dollar a shot, not counting equipment costs. ...

According to the maker, Fractl can run on both battery and AC power and is designed to offer a variety of responses to drones. Not only can it destroy them with a beam the size of a 10-cent piece when they are moving at 60 mph (100 km/h) at a range of 3,300 ft (1,000 m) or burn out sensors at 4,900 ft (1,500 m), it is also a tenth of the size of similar systems and a tenth of the cost.
It can also respond by flashing warnings, dazzling sensors, or inflicting light damage. The laser can be aimed with precision using a hand controller that allows the operator to choose what part of the drone to target for maximum effect. ..."

"... It’s silent, virtually motionless and soldiers can be taught to use it in minutes. ..."

Suitcase-sized laser weapon takes down drones in Australian Army tests The Australian Department of Defence has demonstrated what is not only the country's first laser weapon, but what is billed as the world’s most powerful portable high-energy laser, capable of taking down drones with ground-breaking precision.

Defence's first directed-energy weapon put to the test (original news release)

From the company AIM Defence's website