1st laser build

[heresjaken]

Hi everybody,
I have been reading a lot of threads and researching a bit and I am interested in building my own laser and driver.
So I have bought myself a:
5.6mm 400mW 808nm Infrared IR Laser Diode
Features: .

Output Power 400mw
Wavelength 808nm
Working Voltage 2.2VDC
Working Current 400mA
Working Temperature -10 ℃~＋40 ℃
Dimensions TO18 (5.6mm)

Now I am up to figuring out how to make the driver. I know how to solder and put it together I just am not sure what components to use. Like what size capacitor or what size resistors.
Any help would be greatly appreciated.

 

[ARG]

Have you seen this thread yet?

http://laserpointerforums.com/f42/diy-homemade-laser-diode-driver-26339.html

 

[heresjaken]

ueah I have seen thatthread will that be the same parts for this laser as well?

 

[lasersbee]

Hi everybody,
I have been reading a lot of threads and researching a bit and I am interested in building my own laser and driver.
So I have bought myself a:
5.6mm 400mW 808nm Infrared IR Laser Diode
Features: .

Output Power 400mw
Wavelength 808nm
Working Voltage 2.2VDC
Working Current 400mA
Working Temperature -10 ℃~＋40 ℃
Dimensions TO18 (5.6mm)

Now I am up to figuring out how to make the driver. I know how to solder and put it together I just am not sure what components to use. Like what size capacitor or what size resistors.
Any help would be greatly appreciated.

I don't see any Laser safety Goggles/Glasses in
your list of supplies...:undecided:

Why would you need a 400mW Near Invisible 808nm
Laser.:thinking: You can't even see the beam and it is more
dangerous than a visible wavelength Laser because
it is near invisible...


Jerry

You can contact us at any time on our Website: J.BAUER Electronics

 

[heresjaken]

Oh really... Damn it, I thought higher number more power silly me. What is the visible range then?
I also have ordered laser safety goggles
I still have my original question though, do I need to alter the plan on the above mentioned thread to suit the laser or not?

 

[robmobz]

The visible range is around 400-700nm.
Looking at your numbers you would need a 3.1R resistor.
The formula is 1.25/I(A), You may be better off without a capacitor since they can fry the diode.
All of my advice about values assumes it is a standard lm317 circuit.

 

[heresjaken]

I did it and it works excellent thanks for your help
1st Laser build 250mw 650nm - YouTube