IR l@ser emission shouldn't be a problem
If there is infrared laser light coming in, it will be substantially blocked by the windows, so it shouldn't be too dangerous in itself. You eyes will still reflexively track to the bright green source though, so the distraction is still there.
I'd suggest taking great care with laser goggles - LED warning lights, and flat-panel display phosphors/LCD-filtered lamps might be blocked at the same frequency, and so look weird/dark. If using goggles is a decision you take to increase safety from dazzle, then making sure that your colleague keeps their eyes strictly inside the cockpit, and pays attention to this possibilty while you're using them to look outside might be something to consider.
I think I agree entirely with the post from 911slf above on this.
Last edited by awblain; 13th Jan 2012 at 17:27.
Reason: No a-@ transformation in the title.