My DIY Greenie Pointer. 50mW@25% efficiency

[JLSE]

Well I think its time to post some pic's from my winter hibernation. This project was my first green pointer, though I have built a few labby's from scratch. I recently aquired the proper eye protection for this type of DIY, and put some effort into sizing it down.
The parts I used were entirly from DX, with the exception of the crystal set and the optics. The parts are as follows:

-Driver circuit from Rominsen 30mW no APC (older ver.)
-Diode Laser, 808nm 200mW with can removed DX True 30 (was a true 15 at best)
-Brass diode housing and crystal housing from chrome DX 20mW
-IR filter from NOVA
-Optics from Edmund (no fast axiz lenses used open can)

I took these pic's randomly as I went along, and still have pics to take of the host and the final product.

Enjoy!

 

[JLSE]

Above is the diode housing, retaining ring, and crystal heatsink.

Below is the crystals in the mock up phase.

 

[JLSE]

pic #3

 

[JLSE]

This is the converted open can 808nm, it tested with the board I chose @ 200mW on my Coherent.

 

[JLSE]

It takes a fine needle or equivelent to place the glue on the medium. Even with a steady hand, it proves to be a challenge

 

[JLSE]

Almost there, I used bath and tile silicone to glue everything together. This includes the medium.

 

[JLSE]

This is a piece of a NOVA IR filter. the ones I received from them were far too large, so a gentle 4 way break took care of that. The only problem I found with breaking them is the dust from the glass gets on the the surface of itself

 

[JLSE]

Last but not least (for now), the TEM00 uncollimated dot on the ceiling approx 6ft. I took this pic with no optics or IR filter. It was raw from the crystals during alignment

 

[RA_pierce]

WOW that's amazing you really have some talent.
It's nice to see such a perfect TEM00 dot and especially from a DIY.
Is it still in the construction phase or have you completed it yet?
And what housing are you going to use?

 

[chido]

Very nice dude, hats off to you. This is the second time I've seen someone actually make a green laser.

 

[JLSE]

Thanks, its taken me a while and a ton of DX slaghtering. I have to take some more pics of the host, its one of the DX 20mW greenie chrome pens. I chose them for the length and a neet heatsinking assembly. Ill include a couple of pics of that as well. Ive made a couple of labby's with a 1watt pump and am trying to shrink them a bit.

*Forgot to mention, yes it is finished just got to take the pics

 

[VillageIdiot]

Nice DIY green, you certainly have skills.

I usually have a witty comment or something to go with my post, but not this time. Fuck!

 

[JLSE]

You must be tired :-X


Okay took some more pics, this thing is pretty vicious with fresh Duracells. Im getting a 64.8mW peak but it steadys out at 52. I have to do this with 500mW and a 1W pump, cant wait to see what happens :

 

[JLSE]

Another pic: It doesnt seem to even get warm and no mode problems. The beam at distance is perfect, I will take some outdoor pics tomorrow in the early evening at dusk. An attempt was made but the sky is just too dark

 

[JLSE]

Another pic:

It smokes black tape and pops stripied balloons without the aid of an external lens or focus adjustment. Its set for distance, as I didnt think it would be enough to burn.

 

[VillageIdiot]

Dude, that's awesome!