JPS6041919U - Multi-core bulk coated optical fiber - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing a conventional example of a multi-core simultaneously coated optical fiber, and FIG. 2 is a cross-sectional view of a multi-core simultaneously coated optical fiber showing an embodiment of the present invention. 1a: Fiber wire, 1b': Fiber wire buffer layer (polyurethane), 1: Fiber core wire, 2: Optical unit, 3
': Optical unit buffer layer (silicone rubber), 4: Outer cover (FRP), 5: Rip wire (piano wire).

Claims (2)

[Scope of utility model registration request] (1) A cored fiber is constructed by coating the outer periphery of a primary-coated optical transmission fiber with a fiber buffer layer, and a plurality of the cored fibers are assembled to constitute an optical unit; Furthermore, in the structure of a multi-fiber collectively coated optical fiber in which an optical unit buffer layer is coated on the outer periphery of the optical unit and an outer sheath is applied on the outer periphery of the optical unit buffer layer, the fiber wire buffer layer and the optical unit buffer layer are combined. A multi-fiber, collectively coated optical fiber characterized by being composed of different materials. (2) Utility Model Registration A multi-fiber, collectively coated optical fiber according to the invention according to claim 1, in which a rip line for dividing the optical unit buffer layer is embedded in the optical unit buffer layer.