[Mr.Nerd]

I have almost completed my design for a laser cutter but there are just a few last things I haven't quite figgured out. Can anyone give me some information on partially reflective mirrors that will allow CO2 10.6um through but will reflect visible light. You probably guessed already that its for aligment purposes. Anyways, can somone point me in the right direction? a source maybe?

Thanks in advance

[Genguy]

Check the Edmund Optics catalog:
http://www.edmundoptics.com/us/
They have lots of optics designed for lasers....and everything else.

[ImanCarrot]

Germanium and Silicon optics will transmit in the IR but not in the visible. Any good optical shop will manufacture, but Edmund Optics have a range of off the shelf components- they are good, contact them directly and tel them what you want

[Mr.Nerd]

Thanks for the tips.

I have another question. I noticed that some of the mirrors have an IR transimision of around 80-85 percent, so the 20% thats is not transmitted is spent heating up the optic? It just seems so high.

[ImanCarrot]

I think you're talking about a BeamSplitter for 10.6um? Let me know your exact spec and I'll get our Commercial Director on it. We specialise in coatings and can get you 99.9% reflection or 99.9% transmission in the IR (or anything in between)...

I note that advertising is probably not allowed on this site, so I should say that if we can do it... others can too

[edit]In fact, thinking about it.. you want a BandPass filter. These are standard products for any good coating company. If you have trouble sourcing one pm me and I'll quote you.

[JamesHo]

I am looking for the BeamSplitter with 0.1% reflective rate for CO2 laser power monitor, could you please provide me your supplier message ?

I think you're talking about a BeamSplitter for 10.6um? Let me know your exact spec and I'll get our Commercial Director on it. We specialise in coatings and can get you 99.9% reflection or 99.9% transmission in the IR (or anything in between)...

I note that advertising is probably not allowed on this site, so I should say that if we can do it... others can too

[edit]In fact, thinking about it.. you want a BandPass filter. These are standard products for any good coating company. If you have trouble sourcing one pm me and I'll quote you.

[laserbox_Bert]

Thanks for the tips.

I have another question. I noticed that some of the mirrors have an IR transimision of around 80-85 percent, so the 20% thats is not transmitted is spent heating up the optic? It just seems so high.

The 20% will not be absorbed, but reflected.I recon thats an output coupler mirror.