DIY 5Hz Green MegaWatt pulse laser gun !!!!!

This is my DIY 5Hz Green MegaWatt pulse laser gun.

https://www.youtube.com/watch?v=ZMohqqJKPWc

I use KTP crystal to double freq. to get 532nm.
It has Cr-YAG as Q-switch.
I measured the laser pulse using nova II and found that one pulse's energy is about 100mJ with Q-switch.
Air breaks down into plasma when I use lens to focus laser beam.
Without Q-switch and with focusing, it can punch a hole on Razer Blade (one Gille).
Without Q-switch and without focusing, it can explode balloons at a distance up to 4 meters.
It uses RC model battery as energy source.
4s 8000 mAh RC battery can continue fire 7000+ shots.
It has thermal control system to let circuits under 40 degree C.
Water cooling system keeps laser head under 50 degree C and allows high speed firing.

Great job! That thing is just awesome and damn powerful!

Here's the video for everyone:

THX,
next, I want to build a high quality case for it.

Good job, that's a nice build.
Are you going to put a beam expander lens set on it for more distance?

Absolutely wonderful, wish i could make one of these

RedCowboy said:

Good job, that's a nice build.
Are you going to put a beam expander lens set on it for more distance?

Click to expand...

Thanks for the message.
That's exactly what I am going to do next.
For the time being I only have 20X beam expander,
but the energy is too low to do something like breaking a balloon.
I made a 1X collimator, but still need some adjustment.
1X collimator extends shooting distance from 2m to 4m for balloon explosion.
I want to buy a 1.5~2X beam expander to test.