Optical connector

A technology of optical connectors and connecting mechanisms, applied in the direction of instruments, optics, light guides, etc., can solve the problems of cumbersome formation of the end face of the optical fiber and defects of the optical fiber 2 and 10a, and achieve the effect of simplifying assembly and reducing defects

Inactive Publication Date: 2012-01-04
FUJIKURA LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0025] In this case, it is still cumbersome to form the end face of the optical fiber into an inclined end face by polishing. Therefore, attention has been paid to forming the end face of the optical fiber into an inclined end face by cutting.
[0026] However, when assembling the optical connector, when the insertion optical fiber 10a is inserted into the positioning groove 5a and docked with the built-in optical fiber 2, since the front ends of the inclined end faces of the two optical fibers 2, 10a are sharp, it is impossible to visually observe the positioning. In the groove, when the inserted optical fiber 10a is brought into contact with the built-in optical fiber 2, the optical fiber 2, 10a may be damaged.

Method used

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Embodiment 1

[0073] figure 1 It is a perspective view showing the appearance of the optical connector 1 according to Embodiment 1 of the present invention together with opening and closing members, figure 2 yes figure 1 side view of the optical connector 1, image 3 It is a longitudinal sectional view of the optical connector 1 .

[0074] This optical connector 1 is provided with: ferrule 3, and it is provided with built-in optical fiber (cladding is removed the bare optical fiber) 2, and ferrule 3 is implemented end face grinding; The opposite side is extended. The built-in optical fiber 2 is butt-connected to the bare optical fiber 10 a inserted into the optical fiber 10 .

[0075] Both the built-in optical fiber 2 and the bare optical fiber 10a inserted into the optical fiber are silica optical fibers with a diameter of 125 μm.

[0076] The connection mechanism 4 consists of a base body 6 formed with a positioning groove 5 continuous with the fiber hole 3a of the ferrule 3, a cove...

Embodiment 2

[0104] Below, combine Figure 8A ~ Figure 10B , the optical connector 1 according to the second embodiment will be described. The description of the same parts as in Example 1 will be omitted, and the description will focus on different parts.

[0105] The present embodiment 2 has the above-mentioned and Figure 1 to Figure 5 The structure is the same, and its description is omitted here. In embodiment 2 of the present invention, such as Figure 8A as well as Figure 8B As shown in the enlarged figure, the end face 2a of the rear end side of the built-in optical fiber 2 that abuts with the inserted optical fiber 10 is formed into an inclined end face 2a by cutting processing, and the above-mentioned inclined end face 2a of the built-in optical fiber 2 is subjected to discharge treatment using a thermal splicer, thereby The edge rounding of the inclined end face 2a is mainly performed. The rounded peripheral edge is indicated by reference numeral 2b. Likewise, the inserti...

Embodiment 3

[0126] Below, combine Figure 11A ~ Figure 12C , the optical connector according to the third embodiment will be described. The description of the same parts as in Embodiment 1 will be omitted, and the description will focus on different parts.

[0127] In Embodiment 1, although the refractive index matching agent is filled between the end faces of the two optical fibers, in this Embodiment 3, as will be described later, there are cases where it is necessary to fill the refractive index matching agent between the end faces of the two optical fibers, and There is no need to fill the refractive index matching agent between the end faces of the two optical fibers.

[0128] The present embodiment 3 has the above-mentioned and Figure 1 to Figure 5 The structure is the same, and the explanation is omitted here. In embodiment 3 of the present invention, as Figure 11A as well as Figure 11B As shown in the enlarged figure, the end face 2a on the rear end side of the built-in op...

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Abstract

An optical connector of the present invention includes a ferrule to which an internal optical fiber is embedded and an end face grinding is performed; and a connection mechanism which extends to an opposite side of a connection end face of the ferrule, wherein the optical connector butt connects the internal optical fiber and an insert optical fiber which is inserted from outside within a positioning groove provided at the connection mechanism; and a back end side of an end face of the internal optical fiber which butts to the insert optical fiber is made a beveled end face by cutting process.

Description

technical field [0001] The present invention relates to an optical connector. The optical connector is composed of a ferrule with a built-in optical fiber and end face grinding, and a connection mechanism integrated with the ferrule, and is butt-connected in a positioning groove provided on the connection mechanism. Built-in fiber and insertion fiber. [0002] This application claims Japanese Patent Application No. 2009-030208 filed in Japan on February 12, 2009, Japanese Patent Application No. 2009-030328 filed in Japan on February 12, 2009, and Japanese Patent Application filed in Japan on February 12, 2009 Priority of Japanese Patent Application No. 2009-030329, the entire contents of which are incorporated herein. Background technique [0003] Generally, in an optical connector, the end face of the ferrule is ground to reduce the connection loss of the optical connector connection. [0004] In this case, in order to suppress optical loss due to Fresnel reflection, gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/24
CPCG02B6/25G02B6/3806G02B6/2552G02B6/3846G02B6/3822
Inventor 角田耕司泷泽和宏齐藤大悟
Owner FUJIKURA LTD
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