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To: Frank A. Coluccio who wrote (1335)7/14/1999 5:25:00 PM
From: Dennis O'Bell  Read Replies (1) | Respond to of 15615
 
I would think the technology that's used in some binoculars
and cameras to stabilize the image would work well in keeping
the beams aimed right on; this could reduce the necessary
intensity couldn't it?

What I'm referring to is where they put a high index of
refraction liquid between two plates, some servo then
squeezes the plates at one edge or the other to deviate the
optical path. A very small version of this would have a
short time constant.

They must be doing something like this, I'd see no way the beams
orientation could be stable enough in practice otherwise.



To: Frank A. Coluccio who wrote (1335)7/14/1999 5:39:00 PM
From: Curtis E. Bemis  Read Replies (1) | Respond to of 15615
 
Hello Frank-- The laws of physics govern the transport of DWDM laser
emissions in the atmosphere--variable index of refraction due to variable moisture content and all the other dispersive effects which
lead to degradation.

I think you hit it correctly--those damn pigeons and seagulls--What do
they know ??

Curt...