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Old 10-14-2007, 01:34 AM #17
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Default Re: PBS Cubes for combining red or blue beams

My red goggles from WL just arrived, so 400mw of red would sit right purty! :P :P

Good to hear the Phazer diodes may be comin' along!


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Old 10-15-2007, 03:00 AM #18
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Default Re: PBS Cubes for combining red or blue beams

How do these differ from what is in the blu-ray sleds other than they are larger?
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Old 10-15-2007, 04:11 AM #19
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Default Re: PBS Cubes for combining red or blue beams

Well... they are 15mm x 15mm x 15mm and are tuned to the wavelengths better than the cube in the sleds. Also, the larger size means they will hold the beam rather than have the edges spraying out of the sides... and they are meant to be used for combining beams of the same color, while the ones in the sleds (not sure, please correct me if I'm wrong) are for combining different colors or for reflecting the returning beam...

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Old 10-15-2007, 07:55 AM #20
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Default Re: PBS Cubes for combining red or blue beams

Thanx Daedal! 8-) I was wondering about a few of the relevant particulars. :-? Wikipedia was a bit of general refresher, but dimensions, etc. are of real interest.
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Old 10-16-2007, 12:06 AM #21
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Default Re: PBS Cubes for combining red or blue beams

Does this guy have mounts for these cubes available?
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Old 10-16-2007, 07:05 AM #22
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Default Re: PBS Cubes for combining red or blue beams

I could ask... but what do you need the mount for? It's just going to be epoxied onto a platform of some sort... :-?

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Old 10-16-2007, 08:56 AM #23
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Default Re: PBS Cubes for combining red or blue beams

Hey DDL, would these be any good for the HexBurner?

it's just another idea of reinventing the wheel!
I take it I'd need a few!

Could you post a diagram of how to "stack" them. I've never used a Beam splitter before!


Dan :-)
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Old 10-16-2007, 09:55 AM #24
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Default Re: PBS Cubes for combining red or blue beams

Dan... these can't be stacked...

Without getting into the details of it, you need to have 2 beams at different polarizations from each other to combine them in a PBS. The combined beam is then outputted as the resultant sum of the 2 beams, which will have 2 different polarizations to it now. Adding the output from 2 cubes into a third cube, or inputting the combined beam into another PBS, will net you nothing... Half the beam will be reflected... :-?

Although... you can 'fatten' the beam and combine 4 beams into one using a PBS with some patience and maneuvering as you can see it done here

http://www.photonlexicon.com/forums/...ead.php?t=3083

And here

http://www.photonlexicon.com/forums/...ead.php?t=3031

Or here it is in more detail

http://photonlexicon.com/forums/show...p;postcount=67

GL;
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Old 10-16-2007, 10:00 AM #25
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Default Re: PBS Cubes for combining red or blue beams

I bet you I'll get many droolings for that first link I have there... and rightfully so too... ;D My keyboard gets wet every time I see that picture! :-[

;D

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Old 10-16-2007, 11:46 AM #26
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Default Re: PBS Cubes for combining red or blue beams

Cannot recall my login info to see the pics. So - PLEASE correct me if I am wrong...but without using polarized lasers, these beam combiners won't work ? My Optics education is not up to par with some of you folks, so if someone would care to humiliate me, and my feeble little brain, I would appreciate it ! :-)
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Old 10-16-2007, 05:24 PM #27
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Default Re: PBS Cubes for combining red or blue beams

I don't have an account, but I could sign up for one I guess.

Can anyone post these *amazing* photos?


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Old 10-16-2007, 06:28 PM #28
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Default Re: PBS Cubes for combining red or blue beams

Wasn't sure if they would show up as links... so I'll just attach them instead

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Old 10-16-2007, 06:33 PM #29
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Default Re: PBS Cubes for combining red or blue beams

Now THAT is impressive!

I see what you mean about the beam though. I'll stick to messing with the hex death-ray ;D


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Old 10-16-2007, 06:35 PM #30
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Default Re: PBS Cubes for combining red or blue beams

...
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Old 10-16-2007, 06:36 PM #31
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Default Re: PBS Cubes for combining red or blue beams

...
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Old 10-16-2007, 06:36 PM #32
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Default Re: PBS Cubes for combining red or blue beams

Big Red pictures
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