CN205982737U - Optical fiber connector - Google Patents

Abstract

The utility model relates to an optical fiber connector, include to connect and connect the adaptation cover between adjacent joint be equipped with the optical fiber connector main part between adaptation cover and the joint, the optical fiber connector main part includes the casing, the optic fibre installation body has been cup jointed to the casing inboard, internal two guide jacks and a plurality of fiber optic hub of being equipped with of optic fibre installation, it has the guide to connect to peg graft in the guide jack, grafting optic fibre in the fiber optic hub. The utility model discloses an optic fibre installation body of chamfer type to reduce the loss through the injection forming structure, reduce the dislocation of fiber optic hub, in addition through select the guide connect with the guide jack between and between optic fibre and the fiber optic hub suitable clearance, reduce fiber core dislocation and standard deviation, the improvement connecing the durability of inserting repeatedly, and optic fibre density is higher.

Description

A kind of joints of optical fibre

Technical field

The utility model belongs to technical field of photo communication and in particular to a kind of joints of optical fibre.

Background technology

In optical communications, what fiber active linker solved is two optical fiber（Optical cable）The problem that continues, that is, pass through setting The laser beam making source optical fiber in the mechanical centering device in connector incides in receiving terminal optical fiber as much as possible.This machinery Centralising device is the physical arrangement basis realizing optical coupling, is also the technological core of the joints of optical fibre.

Traditional fibre-optical splice has ST, SC, FC, but the development with optical communication technique, these joints have been not content with existing The requirement of generation technique performance.

In recent years, based on such as DWDM（Dense wave division multipurpose）High speed and high-capacity optical fiber communication system make in a large number With optical connector is an important component part of DWDM technology.Although the SC being widely used single in the past connects Device, in recent years, dwdm system is increasing always to the demand of multicore high-density connector.

However, it is difficult for will realizing the multi-core connector similar with the insertion loss of single core connector, because multicore is even Connecing device needs can be the optical fiber fixing body of pinpoint for multifiber high precision.Improve traditional with thermoset epoxy tree The productivity ratio of the optical fiber fixing body manufacturing process of fat is also extremely difficult, because thermosetting resin needs the regular hour to consolidate Change.Further, in traditional optical fiber fixing body connector, when repeatedly patching, just have and produce around guiding jack near end face Raw cracking and the problem damaged, they can finally affect the stability of insertion loss.

Utility model content

The utility model is directed to existing multi-core connector shortcoming, there is provided a kind of joints of optical fibre, solves guiding and inserts The problem of cracking and damage and mass production is produced around hole.

For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions：

A kind of joints of optical fibre, including the adaptation set between joint and the adjacent joint of connection, in described adaptation set and joint Between be provided with joints of optical fibre main body, described joints of optical fibre main body includes housing, described case inside be socketed with optical fiber install Body, described optical fiber is installed and is provided with two guiding jacks and some fiber optic hubs in vivo, is plugged with guiding and connects in described guiding jack Head, grafting optical fiber in described fiber optic hub.

Further, described optical fiber fixing body is injecting forming structure.

Further, described guiding jack and the gap of fiber optic hub are all at least below 0.3 μm.

Further, the inclination tolerance of described fiber optic hub is at least below 0.2 degree.

Further, the end face of described optical fiber and optical fiber fixing body is all polished with 8 degree of angle.

The beneficial effects of the utility model are:

The utility model adopts the optical fiber fixing body of chamfering type, and by injecting forming structure come reduce loss, reduces light The dislocation of fine jack, additionally by select between guiding joint and guiding jack and between optical fiber and fiber optic hub suitable between Gap, to reduce fiber cores dislocation and its standard deviation, to improve the durability repeatedly patching.

Brief description

Fig. 1 is the grafting schematic diagram of the utility model structure；

Fig. 2 is fibre-optic connector structure enlarged drawing in Fig. 1.

In figure label declaration：1st, joint, 2, adaptation set, 3, the joints of optical fibre, 31, housing, 32, optical fiber fixing body, 33, lead Draw joint, 4, optical fiber.

Specific embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, to describe the utility model in detail.

Shown in reference Fig. 1, a kind of joints of optical fibre, cover 2 including the adaptation between joint 1 and the adjacent joint 1 of connection, It is provided with joints of optical fibre main body 3, described joints of optical fibre main body 3 includes housing 31, described between described adaptation set 2 and joint 1 It is socketed with optical fiber fixing body 32 inside housing 31, be provided with two guiding jacks in described optical fiber fixing body 32 and some optical fiber is inserted Hole, in the present embodiment, fiber optic hub is not more than 12, is plugged with guiding joint 33, described optical fiber in described guiding jack Grafting optical fiber 4 in jack, and be fixed on optical fiber fixing body 32 with binding agent.

Described optical fiber fixing body 32 is injecting forming structure, has also selected PPS in the present embodiment（Polyphenylene sulfide）As Base resin, this resin has low thermal coefficient of expansion, low water absorption rate and high mechanical strength, selects corresponding filler to infiltrate To improve its characteristic, using injecting forming structure, not only through the firm time shortening in forming process, Er Qietong in base resin Cross cleaning mould after forming, to reduce the flash of mould, forming period to be reduced to shift 1/3rd of forming process, significantly Improve the production efficiency manufacturing optical fiber fixing body.

It is provided with chamfering, this enables guiding joint 33 to be easier and more sleekly insert at described guiding jack proximal end face In guiding jack.And, when repeatedly patching, this also works in terms of the stability of junction loss.

Described guiding jack proximal end face at chamfering be 120 degree, have 120 degree of chamfering ratios have other chamferings be easier with more Sleekly guiding joint 33 is injected in guiding jack and substantially a little do not damage.

The gap of described guiding jack and fiber optic hub is all at least below 0.3 μm.

The inclination tolerance of described fiber optic hub is at least below 0.2 degree.

The end face of described optical fiber 4 and optical fiber fixing body 32 is all polished with 8 degree of angle, can obtain high return loss and not With index-matching material, in the present embodiment, the optical fiber end so that with opposite is critically polished to the end face of optical fiber 4 Face contacts.

The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.All of the present utility model spirit and principle Within, any modification, equivalent substitution and improvement made etc., should be included within protection domain of the present utility model.

Claims (5)

1. a kind of joints of optical fibre, including joint（1）, and connect adjacent joint（1）Between adaptation set（2）, in described adaptation Set（2）With joint（1）Between be provided with joints of optical fibre main body（3）It is characterised in that described joints of optical fibre main body（3）Including Housing（31）, described housing（31）Inner side is socketed with optical fiber fixing body（32）, described optical fiber fixing body（32）Inside it is provided with two to lead Draw jack and some fiber optic hubs, in described guiding jack, be plugged with guiding joint（33）, grafting optical fiber in described fiber optic hub （4）.

2. the joints of optical fibre according to claim 1 are it is characterised in that described optical fiber fixing body（32）For injection molded knot Structure.

3. the joints of optical fibre according to claim 1 it is characterised in that the gap of described guiding jack and fiber optic hub all At least below 0.3 μm.

4. the joints of optical fibre according to claim 1 it is characterised in that described fiber optic hub inclination tolerance at least below 0.2 degree.

5. the joints of optical fibre according to claim 1 are it is characterised in that described optical fiber（4）With optical fiber fixing body（32）'s End face is all polished with 8 degree of angle.