On Sunday, September 8, 2019, 03:06:08 PM PDT, \0xDynamite
   <dreamingforward@gmail.com> wrote:

   >> In order to evaluate this as a proposed idea, a physicist would
   consider:
   >> 1.  The loss of manufactured optical waveguides did indeed hit an
   >> unexplained 'floor' in the early 1980s, about 0.16 db/kilometers of
   loss.2.
   >> The manufacturers and users of such fibers have had a very powerful
   >> motivation to figure out how to lower their loss to well below 0.16
   >> db/kilometers, for nearly 40 years.3.  Nothing has yet been found,
   or it
   >> would have been employed.4.  Photons do indeed possess an
   oscillating
   >> magnetic field.5.  A nucleus of an isotope with 'spin' does indeed
   behave
   >> as magnetic dipole.6.  Such a nucleus should be mechanically
   affected by
   >> the passage of light.7.  Energy should be transferred from that
   light to
   >> the nucleus, and thus the atom, as the light passes.8.  Removing
   most or
   >> all atoms with an electromagnetic 'spin' should remove this loss
   mechanism,
   >> in proportion to the amount of such isotopes remaining.
   >> Do you have any other ideas as to how that loss is manifested?
   >Does this suggest, then, that glass can be purified by passing it
   >through a magnetic field.  Perhaps during the extruding process?
   >Mark
   Optical waveguide is not extruded.  It is draw at high temperature,
   where silica is soft.  This video talks about multi-mode fiber, which
   is slightly different than single-mode fiber.
   [1]https://www.youtube.com/watch?v=liKOYbgIC_c
   [2]https://www.youtube.com/watch?v=6CqT4DuAVxs

   I don't think that drawing this with a magnetic field would assist with
   anything.
            Jim Bell

References

   1. https://www.youtube.com/watch?v=liKOYbgIC_c
   2. https://www.youtube.com/watch?v=6CqT4DuAVxs