laser diode ''cube''

I saw on this forum not long ago someone trying to blend 4 ''blue ray 803'' lasers that were collimated pointed at a mirror in beam form but has anyone tried something like this... using a thin nonconductive material drill small very close spaced holes and inserting multiple 650nm 200mw laser diodes in it the shape of a sqaure which is directly the same size as a ''beam splitter'' cube on both the reflctive side and the direct through side using unfocused dioides right infront of the cube and block off the other 3 sides with a black nonreflective material so not to interfere with the total 650nm laser light comming out the ''collective'' side directly into a large collimating lens that is adjustable to focus the total laser light to a point? This would not create a small beam but would project this laser light combined to a point to burn. Say 16 total 650nm 200mw diodes on one side of the cube wired parallel connected to a ''bread board'' then a second diode disc on the other side with the same number of diodes wired the same to a bread board in parallel to a momentary switch going to a battarty supply... this would in theory yeild WATTS of 650nm laser light creating a super laser diode sourcr..the cube as the emitter.Please answer back on forum.

This wouldn't work, you would just get four dots. However, you could take 4 already focused, and focus them to a point, but the beams would cross and keep going their seperate ways. Just imagine an "X".

I'm having a bit of trouble visualizing your concept. Perhaps a drawing would suit the topic.

Cyparagon said:

I'm having a bit of trouble visualizing your concept. Perhaps a drawing would suit the topic.

Click to expand...

I think it's something like combining more beams before collimation with the same cube. :-/ Which of course wouldn't work.A cube can only combine 2 beams because they have to be alligned.It doesn't just magically combine as many beams that you shine into it at whatever angles. : And you may get away with combining two beams before collimation if you have a cube and lens large enough but that's it.It's just better to combine beams after they have been collimated.

So something like this?

Could this be possible? What if you were to mount your diodes in a circular pattern with a cutout in the center to hold a focusing or collimating lens, all aimed parallel towards a precision concave mirror that directed each separate beam back to the collimating/ focusing lens. Visualize a satellite dish...... hmmm after thinking about this a bit more, i would suspect that all the beams would focus to a point (cross paths) and continue on separately as Randomlugia stated earlier...... oh well....so much for my brilliant idea! ;D

Ted

Montana64 said:

Could this be possible?  What if you were to mount your diodes in a circular pattern with a cutout in the center to hold a focusing or collimating lens, all aimed parallel  towards a precision concave mirror that directed each separate beam back to the collimating/ focusing lens.  Visualize a satellite dish...... hmmm after thinking about this a bit more, i would suspect that all the beams would focus to a point  (cross paths) and continue on separately as Randomlugia stated earlier......    oh well....so much for my brilliant idea!   ;D

Ted

Click to expand...

Hey Ted.... that's not so dumb...

That could be done.... using an Axicon Lens.... it is being discussed on another forum...

http://www.photonlexicon.com/forums/showthread.php?t=1644&highlight=axicon

Jerry

Cyparagon said:

So something like this?

Click to expand...

In that setup.... basically... all the laser beams are lined up parallel to each other...
then with optics the beams are being squeeze as close to one another as possible...

With Ted's idea all the lasers in a circle would shine on an Axicon type lens (which would send the
laser beam out at 90 Deg)... and since all the lasers are shining on the same lens... all the beams
would come out at the same 90 Deg and parallel... Then the optics could "squeeze" all the parallel
beams as close together as possible... so it looks like one beam...

Just a thought.... :

Jerry

Thanks Jerry, i was actually thinking about this over the weekend... i have Satellite internet (sucks) and had to re-aim my dish to get better signal.....lol. I live way out of town and cannot get DSL or cable. :'(


Ted

Mine is still in the works, this type of setup is one of the most complicated I have tried yet. Here is the thread for a 4 diode array on the cheap

http://www.laserpointerforums.com/forums/YaBB.pl?num=1229985350/0