Re: [CAD_CAM_EDM_DRO] High pressure water jet (Lasers)

e.heritage@... wrote:

> I'm very interested in lasers
> and I may even look at doing it at university if the laser builder of this
> group wants to talk about CO^2 with anyone. I'd make my own but I don't have
> enough cash to make it worth while right now. : ( I'm not sure I could
> trust myself around one either, I'd proberly just have to try beefing it up
> with some LN^2 cooling. [Mu-ha-ha-har] I read diode lasers increase in
> efficiency by 90%+ if they're super cooled. Imagine making your CO^2 laser
> 90% efficient. You could be running a KILO watt tube instead of 100w. The
> fact that it's not done in industrial sized tubes is making me think though
> that perhaps there is a reason for LN^2 not being used. ?Thermal lensing?
> ?Cost? ?It doesn't actually work with gas tubes?

You can't cool a CO2 laser with liquid Nitrogen, as it will freeze the CO2
gas into a white blob which will not be much good as a laser medium.

Jon