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From: Jerry Avins on 9 Aug 2010 10:18
On 8/9/2010 9:06 AM, fisico32 wrote:
>> ok, but if we could solve the weather problems, would we gain that much
> more bandwidth? People talk about WiMax....can lasers do that much better?
> Any example of how much better?
As was pointed out earlier, it all depends on the speed of the
electronics you can bring to bear. How much are you willing to spend?
Here's a thought: enclose the laser beam in a pipe to shield it from
outside influences. To relax the aiming requirement, make the inside of
the pipe reflective. The most loss-free reflector available is total
internal reflection of low-angle incidence on a high-to-low index
interface, so the "pipe" could be a glass rod. But then it wouldn't be
free space. :=(
Engineering is the art of making what you want from things you can get.