Diameter of this Epilog Fusion Edge CO2 laser?

I’m using my local maker’s space Epilog Fusion Edge 24 CO2 cutting laser to cut pieces out of 1/8" Basswood plywood and I’m trying to figure out how much material it will remove. I’m assuming the diameter of the laser is about what it will remove if cutting a straight line.

The info on the company website lists the laser source for this model as ‘50 or 60 watt, air-cooled, metal/ceramic tube, 10.6 micrometers.’

Now is that 10.6 micrometers the laser diameter or possibly it’s wavelength?