CN210155365U

CN210155365U - Light-taking ferrule and optical fiber adapter

Info

Publication number: CN210155365U
Application number: CN201921212928.0U
Authority: CN
Inventors: 黄金安; 林昌其; 许振源
Original assignee: Zhejiang Shenhua Electronic Technology Co Ltd
Current assignee: Zhejiang Shenhua Electronic Technology Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-03-17
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a get light lock pin and optical fiber adapter. The technical scheme adopted comprises the following steps: the light-taking ferrule comprises an optical fiber seat and a pre-buried optical fiber arranged in the optical fiber seat, wherein the optical fiber seat mainly comprises an optical fiber outer seat and an optical fiber inner seat; the optical fiber outer seat is provided with through holes horizontally arranged at two ends, a groove is arranged in the middle of the optical fiber outer seat, the optical fiber inner seat is arranged in the groove of the optical fiber outer seat, a reflection concave surface used for reflecting detection light out is arranged on the optical fiber inner seat, positioning parts extending in the center are arranged at two ends in the optical fiber inner seat, and the through holes at two ends of the optical fiber outer seat horizontally penetrate through the positioning parts; the embedded optical fibers are horizontally embedded at two ends of the optical fiber outer seat and the optical fiber inner seat respectively, two adjacent ends of the embedded optical fibers are provided with oppositely arranged inclined planes, and the inclined planes are provided with reflecting films used for reflecting detection light with specific wavelength to the reflecting concave surfaces.

Description

Light-taking ferrule and optical fiber adapter

Technical Field

The utility model relates to the field of communication technology, especially, relate to a get light lock pin and optical fiber adapter.

Background

In recent years, in the field of communications, optical fibers capable of high-speed and large-capacity transmission have become the mainstream of transmission lines, and have been further developed. Accordingly, especially in the optical communication related devices of the data center or the telecommunication room, the construction work such as the change, abandonment, increase, etc. of the optical transmission path is frequently performed, the current management mode is to print paper labels on the patch cords to manage the optical fiber communication direction address and the transmission content of the port, but the workload is increased greatly due to the fact that a large amount of change or dismantling business needs to print paper labels again, and the error of the actual operator or lack of responsibility causes the paper label content and the actual optical transmission content to be far away, so that the construction of the subsequent constructor is greatly disturbed, and meanwhile, the work efficiency and the operation and maintenance cost are greatly reduced.

Some existing detection light extraction techniques are typically implemented to change the fiber node structure or introduce waveguide defects at the fiber node. For example: the detection light is extracted by using reflection and scattering leakage caused by non-intimate contact of the end faces of the optical fibers. This method has no wavelength selectivity and the end face conditions are difficult to control, and cannot efficiently obtain detection light of a desired wavelength in a proportional manner. For another example: a wedge-shaped groove is introduced into the ferrule, and detection light is led out through refraction and reflection of the wedge-shaped groove interface. This method also has no wavelength selectivity, and although the extraction ratio is controllable, the optical loss at the node is difficult to reduce.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a get light lock pin and optical fiber adapter.

In order to solve the above problem, the utility model discloses a technical scheme include:

get light lock pin, include the optic fibre seat, establish pre-buried optic fibre in the optic fibre seat, its characterized in that: the optical fiber seat mainly comprises an optical fiber outer seat and an optical fiber inner seat; the optical fiber outer seat is provided with through holes horizontally arranged at two ends, a groove is arranged in the middle of the optical fiber outer seat, the optical fiber inner seat is arranged in the groove of the optical fiber outer seat, a reflection concave surface used for reflecting detection light out is arranged on the optical fiber inner seat, positioning parts extending in the center are arranged at two ends in the optical fiber inner seat, and the through holes at two ends of the optical fiber outer seat horizontally penetrate through the positioning parts; the embedded optical fiber is respectively and horizontally embedded at two ends of the optical fiber outer seat and the optical fiber inner seat, two adjacent ends of the embedded optical fiber are provided with oppositely arranged inclined planes, the inclined planes are provided with reflecting films for reflecting detection light with specific wavelength to the reflecting concave surface,

get light lock pin, its characterized in that: the width W of the gap between the positioning parts of the optical fiber inner seat is 200-500 μm.

Get light lock pin, its characterized in that: the width W of the gap between the positioning parts of the optical fiber inner seat is 300 mu m.

Get light lock pin, its characterized in that: and chamfers for abdicating are arranged on two sides of the top of the positioning part.

Get light lock pin, its characterized in that: and a supporting part is arranged at the bottom between the positioning parts of the optical fiber inner seat.

Get light lock pin, its characterized in that: the included angle of the inclined plane at the front end of the embedded optical fiber is 30-50 degrees.

Get light lock pin, its characterized in that: and glue injection grooves are formed in two sides of the optical fiber inner seat.

A fiber optic adapter comprising a housing, a connector mounted within said housing, and a ferrule mounted within said connector, wherein: the light-taking insertion core is arranged in the sleeve, and a first light-transmitting opening, a second light-transmitting opening and a third light-transmitting opening which correspond to each other are arranged above the sleeve, the connecting piece and the shell respectively.

The optical fiber adapter is characterized in that: and a lighting module is arranged in the third light transmitting port of the shell.

The utility model discloses a get light lock pin and optical fiber adapter:

1. the light-extracting ferrule of the utility model has the advantages that the light-extracting ferrule has obvious advantages compared with the existing light-extracting ferrule by plating the reflecting film with specific wavelength and specific reflectivity on the end surface of the optical fiber, the wavelength selectivity can reduce the loss of communication light to the maximum extent, and the reflectivity selectivity can effectively control the escape power of detection light;

2. the transparent accommodating tube of the traditional light-taking inserting core is omitted, so that light loss is reduced, and the detection stability is improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the light-extracting ferrule of the present invention;

fig. 2 is an exploded view of the light-extracting ferrule of the present invention;

FIG. 3 is a schematic structural view of the optical fiber inner holder according to the present invention;

fig. 4 is a schematic structural diagram of the pre-buried optical fiber of the present invention;

fig. 5 is a cross-sectional view of the light-extracting ferrule of the present invention;

fig. 6 is an exploded view of the fiber optic adapter of the present invention;

fig. 7 is a cross-sectional view of the fiber optic adapter of the present invention.

Detailed Description

Example 1:

as shown in fig. 1 to 5, the utility model discloses a light-extracting ferrule, including optical fiber seat 1, establish pre-buried optic fibre 2 in the optical fiber seat 1. The optical fiber holder 1 mainly comprises an optical fiber outer holder 3 and an optical fiber inner holder 4. The optical fiber outer seat 3 is characterized in that through holes 5 horizontally arranged at two ends of the optical fiber outer seat 3 are provided, and a groove 6 is arranged in the middle of the optical fiber outer seat 3. The optical fiber inner seat 4 is arranged in the groove 6 of the optical fiber outer seat 3, the optical fiber inner seat 4 is provided with a reflection concave surface 7 for reflecting the detection light, and the reflection concave surface 7 performs gathering reflection on the detection light so as to improve the intensity of the detection light and facilitate the collection of a lighting module. The optical fiber inner seat 4 is internally provided with positioning parts 8 with centers extending, and the through holes 5 at the two ends of the optical fiber outer seat 3 horizontally penetrate through the positioning parts 8. The embedded optical fiber 2 is horizontally embedded at two ends of the optical fiber outer seat 3 and the optical fiber inner seat 4 through the through hole 5. Two adjacent ends of the embedded optical fiber 2 are provided with oppositely arranged inclined planes 9, and the included angle of the inclined planes 9 is 30-50 degrees, preferably 45 degrees. The inclined surface 9 is provided with a reflection film 10 for reflecting detection light with a specific wavelength onto the reflection concave surface 7. The reflective film can be plated by a physical or chemical method, and the detection light with a specific wavelength in the optical fiber can be taken out according to a designed proportion by selecting the thickness of the film layer and the refractive index of the material, and the reflective film is a known technology and is not described herein again. The detection light is light in a non-communication band in the optical fiber, for example 1620 nm.

Further, the width W of the gap between the positioning parts 8 of the optical fiber inner holder 4 is 200 μm to 500 μm. The optical fiber splicing angle is preferably 300 mu m, and the accuracy and the stability of the butt joint of the embedded optical fibers 2 can be ensured while the reflection of the detection light energy is ensured.

Further, chamfers 11 for abdicating are arranged on two sides of the top of the positioning part 8 so as to prevent the positioning part 8 from blocking the detection light.

Further, the bottom between the positioning parts 8 of the optical fiber inner seat 4 is provided with a supporting part 12 for supporting the embedded optical fiber 2 so as to improve the accuracy and stability of the butt joint.

Furthermore, glue injection grooves 13 are formed in two sides of the optical fiber inner seat 4, and dehydration is performed in the glue injection grooves 13, so that the optical fiber inner seat 4 can be fixed in the optical fiber outer seat 3.

Example 2:

as shown in fig. 6 to 7, the present invention provides a fiber optic adapter, which includes a housing 14, a connecting member 15 installed in the housing 14, and a sleeve 16 installed in the connecting member 15. The light-extracting ferrule a described in embodiment 1 is installed in the sleeve 16, and a first light-transmitting opening 17, a second light-transmitting opening 18 and a third light-transmitting opening 19 are respectively provided above the sleeve 16, the connector 15 and the housing 14.

Further, a lighting module 20 is installed in the third light-transmitting opening 19 of the housing 14. The lighting module 10 is used for collecting the detection light reflected by the light-extracting ferrule a. The lighting module 20 itself is prior art and will not be described herein.

The optical fiber adapter of the embodiment has two ends suitable for being butted with the optical fiber connector of the SC interface. In practical application, two optical fiber connectors connected with optical fibers are respectively butted at two ends of the optical fiber adapter. The light of the optical fiber is transmitted to the other side from one side of the optical fiber adapter, the detection light in the optical fiber is reflected to the reflection concave surface by the reflection film on the embedded optical fiber on the opposite side of the optical fiber, and then is reflected to the lighting module by the reflection concave surface.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included within the protection scope of the present invention.

Claims

1. The utility model provides a get light lock pin, includes optical fiber seat (1), establishes pre-buried optic fibre (2) in optical fiber seat (1), its characterized in that: the optical fiber seat (1) mainly comprises an optical fiber outer seat (3) and an optical fiber inner seat (4); the optical fiber outer seat (3) is provided with through holes (5) which are horizontally arranged at two ends, a groove (6) is arranged in the middle of the optical fiber outer seat, the optical fiber inner seat (4) is arranged in the groove (6) of the optical fiber outer seat (3), a reflection concave surface (7) used for reflecting detection light out is arranged on the optical fiber inner seat (4), positioning parts (8) which extend from the center are arranged at two ends in the optical fiber inner seat (4), and the through holes (5) at two ends of the optical fiber outer seat (3) horizontally penetrate through the positioning parts (8); the embedded optical fiber (2) is horizontally embedded at two ends of the optical fiber outer seat (3) and the optical fiber inner seat (4) respectively, two adjacent ends of the embedded optical fiber (2) are provided with oppositely arranged inclined planes (9), and the inclined planes (9) are provided with reflection films (10) used for reflecting detection light with specific wavelength to the reflection concave surfaces (7).

2. The light-extraction ferrule of claim 1, wherein: the width W of the gap between the positioning parts (8) of the optical fiber inner seat (4) is 200-500 μm.

3. The light extraction ferrule of claim 2, wherein: the width W of the gap between the positioning parts (8) of the optical fiber inner seat (4) is 300 mu m.

4. The light-extraction ferrule of claim 1, wherein: and chamfers (11) for abdicating are arranged on two sides of the top of the positioning part (8).

5. The light-extraction ferrule of claim 1, wherein: and a supporting part (12) is arranged at the bottom between the positioning parts (8) of the optical fiber inner seat (4).

6. The light-extraction ferrule of claim 1, wherein: the included angle of the inclined plane (9) at the front end of the embedded optical fiber (2) is 30-50 degrees.

7. The light-extraction ferrule of claim 1, wherein: and glue injection grooves (13) are formed in two sides of the optical fiber inner seat (4).

8. A fiber optic adapter comprising a housing (14), a connector (15) mounted within the housing (14), and a ferrule (16) mounted within the connector (15), characterized in that: the light-extraction inserting core (a) as described in any one of claims 1-7 is installed in the sleeve (16), and a first light-transmission opening (17), a second light-transmission opening (18) and a third light-transmission opening (19) are respectively arranged above the sleeve (16), the connecting piece (15) and the shell (14).

9. The fiber optic adapter of claim 8, wherein: and a lighting module (20) is arranged in the third light-transmitting opening (19) of the shell (14).