Optical transmission line
AssigneeSumitomo Electric Industries, Ltd.
InventorsShinji Ishikawa, Motonori Nakamura, Masao Tsukitani, Eisuke Sasaoka
Life of this patent
Estimating the term…
Abstract
An optical transmission line including a portion formed by fusion-splicing optical fibers having structures different from each other; wherein, in the optical fibers having structures different from each other, a first optical fiber 1 has a mode field diameter smaller than that of a second optical fiber 2 fusion-spliced thereto; and wherein the first optical fiber 1 has an average viscosity from a center to an outermost layer greater than that of the second optical fiber from a center to an outermost layer.
Claims11
An optical transmission line including a fusion-spliced portion formed by fusion-splicing optical fibers having structures different from each other, wherein the fusion spliced portion comprises:
- a first optical fiber having a mode field diameter, a geometric center, an outermost layer, and an average viscosity;
- and
- a second optical fiber fusion-spliced, having a mode field diameter greater than the mode field diameter of the first optical fiber, a geometric center, an outermost layer, and an average viscosity,
- wherein the average viscosity from the geometric center to the outermost layer in said first optical fiber is greater than the average viscosity from the geometric center to the outermost layer in said second optical fiber.
Dependencies are inferred from the claim text.