[geeks] Whee! Lightning strikes, AGAIN!
alaric at metrocast.net
Tue Jul 28 10:24:39 CDT 2009
gsm at mendelson.com wrote:
> I may be wrong, but lasers today are solid state which means that they
> produce whatever color they produce due to their chemical composition.
> I assume that over their life time there is some "drift", but you can't
> tune them.
Actually, some semiconductor lasers can be tuned, but only by small
amounts, iirc. There are even a few types of more exotic semiconductor
laser devices that can be tuned over quite a significant range.
Phil Stracchino, CDK#2 DoD#299792458 ICBM: 43.5607, -71.355
alaric at caerllewys.net alaric at metrocast.net phil at co.ordinate.org
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