Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2006-12-26
2006-12-26
Font, Frank G. (Department: 2883)
Optical waveguides
Optical fiber waveguide with cladding
C385S125000, C385S126000, C385S127000, C264S001270, C264S001280, C264S001290, C065S439000
Reexamination Certificate
active
07155097
ABSTRACT:
A preform for a microstructured fibre or a part for a preform for a microstructured fibre. The preform or part has a length in the longitudinal direction and a cross section perpendicular thereto, and includes a rod arranged at the centre of the preform or part, with one or more tubes being concentric to the rod. The rod is sleeved inside a first of the concentric tubes, and the rod and/or at least one of the concentric tubes has grooves and/or slits extending in the longitudinal direction, with the number of innermost longitudinally extending grooves and/or slits with respect to a centre of the preform or part being at least six.
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Broeng Jes
Jakobsen Christian
Skovgaard Peter M.
Vienne Guillaume
Crystal Fibre A/S
Font Frank G.
Hughes James P.
Jacobson & Holman PLLC
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