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US 2023/0418015 A1Published application
Colored optical fiber, optical fiber ribbon, assembly cable of single fibers, optical fiber ribbon cable and method for manufacturing the same
AssigneeFurukawa Electric Co., Ltd.
InventorsKuniaki ISHIZUKI, Minoru KASAHARA, Mitsuhiro IWAYA
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Abstract
A colored optical fiber comprises a bare optical fiber, a primary layer formed of a first ultraviolet curing resin covering the bare optical fiber, and a secondary layer formed of a second ultraviolet curing resin covering the primary layer, wherein a Young's modulus of the primary layer is smaller than 70% with respect to a saturated Young's modulus of the primary layer, and wherein the saturated Young's modulus of the primary layer is smaller than or equal to 0.85 MPa.
Claims15
A colored optical fiber comprising:
- a bare optical fiber;
- a primary layer formed of a first ultraviolet curing resin covering the bare optical fiber;
- and
- a secondary layer formed of a second ultraviolet curing resin covering the primary layer,
- wherein a Young's modulus of the primary layer is smaller than 70% with respect to a saturated Young's modulus of the primary layer, and
- wherein the saturated Young's modulus of the primary layer is smaller than or equal to 0.85 MPa.
3 more elements
A method for manufacturing a colored optical fiber comprising:
- a step of drawing a bare optical fiber from an optical fiber preform;
- a step of forming a primary layer by applying a first ultraviolet curing resin around the bare optical fiber;
- and
- a step of forming a secondary layer by applying a second ultraviolet curing resin around the primary layer and irradiating the second ultraviolet curing resin with ultraviolet light,
- after manufacturing the colored optical fiber,
- wherein a Young's modulus of the primary layer is smaller than 70% with respect to a saturated Young's modulus of the primary layer, and
- wherein the saturated Young's modulus of the primary layer is smaller than or equal to 0.85 MPa.
4 more elements
Dependencies are inferred from the claim text.