808nm 40w laser array driver

[vasiliy]

hi all
i have this laser diode (in the middle)
http://dilas.com/assets/media/products/DILAS_SB_808nm.pdf

can someone help find me a driver scheme for this diode?

 

[diachi]

Sam's Laser FAQ - Diode Laser Power Supplies

IIRC - You can use a constant voltage supply and a real beefy resistor for diodes like that.

Could go with this option and stack a bunch of LM338s in parallel - though you'd need about 10 of them and a rather large heatsink to handle the current and heat. Would probably need to make some other modifications (Huge resistor at correct value for starters). Sam's Laser FAQ - Diode Laser Power Supplies - 1MHz Analogue Driver based on LM317/338

 

[Cyparagon]

What is your budget? What is your intended use of the device? Where are you located? How familiar are you with electronics? We can help you a lot better if you actually give us some background.

 

[vasiliy]

@Cyparagon
What is your budget?
500 +-

What is your intended use of the device?
wanna make something like this
https://www.youtube.com/watch?v=U0Q4romu9bw
and this diode need for tests

Where are you located?
Ukraine

How familiar are you with electronics?
beginner


i can make all things from video above except laser

 

[vasiliy]

@diachi
tnx but this is hard for me, for now
i can't create schema for myself cuz i'm beginner in this area

 

[diachi]

@Cyparagon
What is your budget?
500 +-

What is your intended use of the device?
wanna make something like this
https://www.youtube.com/watch?v=U0Q4romu9bw
and this diode need for tests

Where are you located?
Ukraine

How familiar are you with electronics?
beginner


i can make all things from video above except laser

@diachi
tnx but this is hard for me, for now
i can't create schema for myself cuz i'm beginner in this area

Then this isn't the project for you - you'll need much more experience to get something like that going from scratch. For starters, that's entirely the wrong laser diode you have for an engraver. You either need a CO2 laser, Nd:YAG (or other DPSS laser) or a large fibre coupled laser. Something that emits a single, round, tight beam. These diodes emit 19 "stacked" beams that are more like flashlights than laser beams. Very difficult to correct them into a proper usable beam, especially for a hobbyist.

Start with a small laser engraver kit perhaps and go from there.

 

[Cyparagon]

Yes, IR diode bars aren't good for much more than optical pumping.

500 what? 500 USD would be plenty to buy a complete CO2 laser cutter. Just the laser actually costs more than a complete system somehow, according to ebay prices, so this is not a cost-effective project from the start.

I hope it's not your national currency, because google tells me 500 Ukrainian Hryvnia equals 20.143 US Dollar, which will buy you nothing.

 

[vasiliy]

i see...

and what laser using here

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

anyone knows?

i found only that (4x 400 W)

 

[DashApple]

Its stats it at the end of the video , 400W Yb Fibre lasers