650nm 200mW Labby Style

[Kamildos]

What can you do with a broken switch and laser diode? Of course, the laser!

Parts:

Diode: DVD burner
Host: at-fs705le switch
Driver: LM317
Power supply: 6-12V(Max)
Lens: Aixiz standard lens
Output: ~200mW

Some pics:

Diode ready to battle

Quick assembly and almost ready

Finished laser

Time to fire it up!

:thanks:

 

[kilter]

That has a driver right?...

 

[Cyparagon]

Is that a... thermal pad? To a steel case?

 

[Zeebit]

Holy thick wires, Batman!

 

[Kamildos]

Is that a... thermal pad? To a steel case?

Yea

 

[alessnilsen]

Good!

What driver do you used? I think with a DVD burner LD you can get 250mW setting the current to 400mA. I run all my red lasers at this current and nothing bad happened.

 

[BurningLaserGuy]

Well... a 200mW laser without any heatsink?! The duty cicle must be very short...
@alessnilsen: He said that he used a LM317.

 

[alessnilsen]

Good, I agree with you, my laser runs at 250 mW and generates a lot of heat. You must run it with a duty cycle.

Sorry, I don't seen the driver in the assembly.

 

[BurningLaserGuy]

LOL, now I see that is no driver in the host! Where did you put it?

 

[hakzaw1]

Technically IMHO what you have built is NOT a lab laser- no fan- no HS- and either short duty cycle or soon a dead diode-- many heat sinks can be had cheap from Ebay-- enlarge the opening and rebuild with a bigger HS--adding a small fans may also be a good idea--+5 for re-using parts my first battery handhelds looks a lot like this-- BUT all have the AixiZ module in a heat sink--

 

[BurningLaserGuy]

So...no driver, no heatsink... I'm almost sure you don't have even safety goggles!