X-cube for combining Red, Green and Blue beams

[greenalien]

Found this site, http://www.crystechcoating.com/ , thought their X-cube might be usable for mixing Red, Green and Blue lasers - has anyone tried it? and does anyone know the price?

[marconi]

Yes, They can be used for beam combining.
I have tried it..It works but very lossy.
But they are polarization sensitive just like a regular PBS cube.

What this means to us is..some DPSS lasers are not polarized very well ( 4:1 ) because of the small cavity
and we could loose 25 percent of the power. This would be on top of the loose thru the cube (another 20 percent at least).
Also. the polarization emitted from the laser may be 90 degrees off depending on the manufacturer..
Some are even further off...
so a few mirrors will come into play here if we want to make it right for the X or PBS cube.
Reds are usually easier , especially if we make them ourselves

[buffo]

Sort of like using a trichro...

The alignment issues are a bitch. Much easier to use two separate dichros and combine the beams in stages than to try and do it all at once in a single device. (And yeah, I got lucky with the picture above. The near field alignment looks good, but the far field was way off.)

Adam

[joseph331]

here is the picture...this could be usable for mixing red green and blue, I am from CrystechCoating, if you want to know more info of it, I am glad to help....

[mliptack]

How much? Heh... dare I ask?

[joseph331]

many kinds...different price...
key factor: size, and polarization of the light and the quantity and so on...
for different application should be using different x-cube

[greenalien]

Joseph331 - your pictures don't seem to be getting through...

Some idea on pricing would be helpful, eg to mix 473nM at 500mW, 532nM at 500mW and 660nM at 1W. TIA.

[MechEng3]

Here is a file on them.....looks as if dichroic's will have a better transmission percentage. Any samples to test?

[450nm]

So I'm not the only one who uses CD's as shims? Here's my preferred focusing method. It actually works quite well. The 'lens' is a X9 watchmakers glass. The heat sink is an old CPU one.

[Laser Ben]

I have used many of these for combining LEDs. The luxeon based projectors use them although they are not from this company.