  A metallic hollow waveguide is promising fiber for the delivery of laser
radiation. Thickness of the nickel plated layer for supporting of the waveguide
in fabrication of a dielectric coated silver hollow nickel waveguide is very
important factor. In this paper, the change characteristic in the thickness of
the nickel plated layer along the length of the silver coated glass mandrel
during fabricating the silver hollow nickel waveguide by the outer-coating
method of the liquid phase process has been studied both experimentally and
analytically. Waveguides with uniform thickness of the nickel plated layer
along the length of the silver coated glass mandrel have been fabricated.

Instrumentation and Detectors;Optics