Plastic-clad silica (PCS) fibers and methods and apparatuses for producing the same
AssigneeMitsubishi Rayon Co., Ltd.
InventorsKatsuhiko Shimada, Tsuneo Takano, Osamu Itamoto, Michisuke Edamatsu, Yasuo Hiromoto
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Abstract
A method and apparatus for producing a polymer-clad silica (PCS) optical fiber comprising a core of a transparent inorganic glass and a cladding of a transparent organic polymer characterized in that the amount of volatile components in its cladding is not more than 1 wt %, which method and apparatus comprise forming the core fiber, forming the cladding around the core fiber, and treating the cladding with a far infrared heater.
Claims8
An optical fiber, having a core-clad structure, comprising a core of a transparent inorganic glass and a cladding of a transparent organic polymer, which optical fiber is characterized in that the amount of volatile components in the cladding is not more than 1 wt %.
An optical fiber, having a core-clad structure, comprising a core of a transparent inorganic glass and a cladding of a transparent organic polymer, which optical fiber is characterized in that the amount of volatile components in the cladding is decreased to a level of not more than 1 wt % by heating with a far infrared heater.
A method for producing an optical fiber comprising:
- a) forming a core fiber from a transparent inorganic glass;
- and
- b) forming a cladding of a transparent organic polymer, having a refractive index less than that of the core fiber, on the core fiber;
- and
- c) evaporating the volatile components in the cladding with a far infrared heater to a level of not more than 1 wt %.
An apparatus for producing an optical fiber comprising a preform melting furnace, a diameter measuring device for measuring the diameter of the core fiber, a clad material coating pot, a far infrared heater, a measuring device for measuring the diameter of the optical fiber, and nip rollers.
Dependencies are inferred from the claim text.