JPS6028712U

JPS6028712U - Optical fiber connection structure

Info

Publication number: JPS6028712U
Application number: JP11934883U
Authority: JP
Inventors: 井利　英二; 順一上田; 伊藤　弘孝; 一行只友
Original assignee: Mitsubishi Cable Industries Ltd
Current assignee: Mitsubishi Cable Industries Ltd
Priority date: 1983-07-29
Filing date: 1983-07-29
Publication date: 1985-02-26

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図イル二は従来の接続手順を示す模式図、第２図イ
ル二は本考案における接続手順を示す模式図、第３図は
本案構造において用いる顔料を含ませるポリマーの分光
特性を示すグラフである。Ｆ□、Ｆ２・・・光ファイバ、１・・・コア、２・・・
クラッド層、３・・・保護被膜、７・・２・顔料を含む
ポリマー製のクラッド層、訃・・接着剤、９・・・接着
剤、１０・・・保護チューブ。　　　　　　　　　゛パ
ト−Fig. 1 is a schematic diagram showing the conventional connection procedure, Fig. 2 is a schematic diagram showing the connection procedure in the present invention, and Fig. 3 is a graph showing the spectral characteristics of the polymer containing the pigment used in the proposed structure. It is. F□, F2...Optical fiber, 1...Core, 2...
Cladding layer, 3... Protective film, 7... 2... Polymer cladding layer containing pigment, 9... Adhesive, 9... Adhesive, 10... Protective tube.゛Pato-

Claims

[Claims for Utility Model Registration] 1. An optical fiber having a quartz-based core and a polymer cladding layer. The cladding layer is removed over a required length from the end surface of each end of the optical fiber, and the exposed end surfaces of the core are connected to each other. What is claimed is: 1. An optical fiber connection structure characterized in that the exposed core peripheral surface of the optical fiber is surrounded by a polymer whose coefficient K defined by the following formula satisfies the condition O<K. 2 (DB(700)-DB(400)) Outside-DB(7
00)+DB(400) However, 1. DB (700): Attenuation amount when light with a wavelength of 700 nm is transmitted through the polymer film of a predetermined thickness DB (400): Attenuation amount when light with a wavelength of 400 nm is transmitted through the polymer film with a predetermined thickness. amount of attenuation when 2. The optical fiber connection structure according to claim 1, wherein the polymer is a silicone resin. 3. The optical fiber connection structure according to claim 1, wherein the polymer contains green, blue, and violet pigments.