CN216387475U

CN216387475U - MPO multi-core optical fiber connector

Info

Publication number: CN216387475U
Application number: CN202123173327.3U
Authority: CN
Inventors: 郭琪; 韩兆春; 谭莉; 郁建科; 邓畅
Original assignee: DONGGUAN XIANGTONG PHOTOELECTRIC TECHNOLOGY CO LTD
Current assignee: DONGGUAN XIANGTONG PHOTOELECTRIC TECHNOLOGY CO LTD
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-26
Anticipated expiration: 2031-12-15

Abstract

The utility model provides an MPO multi-core optical fiber connector, which comprises: an MPO multi-fiber optical fiber connector comprising: the MPO connector comprises a plurality of receiving optical fibers, a plurality of transmitting optical fibers, an MPO connector, a receiving end, a transmitting end and connecting pieces which are respectively arranged on the receiving optical fibers and the transmitting optical fibers; the connecting piece comprises a socket and a plug; one of the plug and the socket is connected with the MPO connector through a receiving optical fiber or a transmitting optical fiber; the other of the plug and the socket is connected with the receiving end through a receiving optical fiber or connected with the transmitting end through a transmitting optical fiber. Therefore, after the end faces of the optical fibers on the transmitting end or the receiving end are damaged, the corresponding part of the transmitting end or the receiving end can be replaced, the whole MPO multi-core optical fiber connector can be prevented from being dismounted, the whole MPO multi-core optical fiber connector can be directly scrapped as long as one optical fiber end face is damaged in the prior art, and the product yield can be improved.

Description

MPO multi-core optical fiber connector

Technical Field

The utility model relates to the field of optical fiber connectors, in particular to an MPO multi-core optical fiber connector.

Background

With the advent of the 5G era, more and more ultra-large data centers appear globally, and the ultra-large data centers generally need to deploy a large number of high-speed optical modules. 200G, as the mainstream technology of the previous generation, has entered the mature and stable stage of the life cycle, and the reduction of the unit bit cost is greatly limited, so the 400G/800G technology is produced at the same time. At present, relevant international standards organizations have issued relevant standards, and some optical module suppliers have proposed 400G/800G optical modules applied to data centers.

An MPO multi-core fiber connector is commonly used in an optical module, and in the prior art, one end of the MPO multi-core fiber connector is a 12, 16/24 core MPO/MTP standard connector, and the other end is 2 transmitting ends and 2 receiving ends. The optical fibers at the tail of the MPO have various line sequences and different line lengths due to inconsistent requirements of each customer, so that the optical fiber array or the plug is in various shapes, automatic coupling cannot be realized, only manual coupling can be performed, and the labor cost is increased. When the device is coupled, because a plurality of optical fiber arrays or plugs need to be coupled, the MPO end is butted for a plurality of times, the MPO optical fiber end face is very easy to be damaged due to the butting for a plurality of times, and the whole MPO multi-core optical fiber connector is directly scrapped as long as one optical fiber end face is damaged, so that the material cost is increased, and the qualification rate is influenced. In addition, once the MPO multi-core optical fiber connector is scrapped, related personnel are required to repair the MPO multi-core optical fiber connector, and the optical fiber array or the plug which is coupled to be qualified in the front is detached from the PCB, so that the labor cost is increased.

Therefore, the prior art has defects and needs to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, the present invention aims to provide an MPO multi-core fiber optic connector, which aims to solve the problem of low yield of the MPO multi-core fiber optic connector in the prior art.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

an MPO multi-fiber optical fiber connector comprising:

a plurality of receiving fibers and a plurality of transmitting fibers;

MPO connectors arranged at one ends of the receiving optical fibers and the transmitting optical fibers;

the receiving end is arranged at the other end of the plurality of receiving optical fibers;

the transmitting end is arranged at the other end of the plurality of transmitting optical fibers;

connectors respectively arranged on the receiving optical fiber and the transmitting optical fiber; the connecting piece comprises a socket and a plug, and the socket and the plug are detachably connected; one of the plug and the socket is connected with the MPO connector through the receiving optical fiber or the transmitting optical fiber; the other one of the plug and the socket is connected with the receiving end through the receiving optical fiber or connected with the transmitting end through the transmitting optical fiber.

Further, the plug is a first ceramic ferrule.

Further, the socket includes a sleeve and a second ferrule;

the diameter of the sleeve is matched with that of the first ceramic ferrule;

the second ceramic ferrule is arranged at one end, away from the MPO joint, in the sleeve, and one side, facing the transmitting end or the receiving end, of the second ceramic ferrule is connected with the transmitting optical fiber or the receiving optical fiber;

the first ferrule is in contact with the second ferrule when the first ferrule is inserted within the ferrule.

Further, the first ceramic ferrule is in interference fit with the sleeve.

Further, the sleeve is a ceramic sleeve.

Further, the diameter of the first ferrule is 1.25 mm or 1 mm;

the second ferrule has a diameter of 1.25 millimeters or 1 millimeter.

Further, 8 transmitting optical fibers and 8 receiving optical fibers are respectively arranged.

Furthermore, the number of the transmitting ends and the number of the receiving ends are two, each transmitting end is connected with four transmitting optical fibers, and each receiving end is connected with four receiving optical fibers.

According to the technical scheme, the utility model has at least the following advantages and positive effects:

in the utility model, the connecting piece for connecting the MPO joint and the receiving end or the transmitting end comprises a socket and a plug, the plug is connected with the MPO joint through the transmitting optical fiber or the receiving optical fiber, the socket is connected with the receiving end or the transmitting end through the transmitting optical fiber or the receiving optical fiber, and the socket and the plug are detachably connected, so that when the end surface of the transmitting optical fiber on the transmitting end or the receiving optical fiber on the receiving end is damaged, the whole MPO multi-core optical fiber connector can be prevented from being disassembled by replacing the corresponding part of the transmitting end or the receiving end, and the whole MPO multi-core optical fiber connector can be directly scrapped when only one optical fiber end surface is damaged in the prior art, thereby improving the qualification rate of products.

Drawings

Fig. 1 is a schematic structural diagram of an MPO multi-core fiber optic connector according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partial schematic view of an MPO multi-fiber optical fiber connector according to an embodiment of the utility model.

Fig. 4 is a partial schematic view of an MPO multi-fiber optical fiber connector according to an embodiment of the utility model.

Description of reference numerals:

100. MPO multi-core fiber optic connectors;

11. an emission optical fiber; 12. receiving an optical fiber; 2. an MPO linker; 3. a receiving end; 4. a transmitting end; 5. a connecting member; 51. a first ferrule; 52. a sleeve; 53. a second ferrule.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Referring to fig. 1 and 2, in an embodiment of the present invention, an MPO multi-fiber optical fiber connector 100 is provided, where the MPO multi-fiber optical fiber connector 100 includes a plurality of receiving fibers 12 and a plurality of transmitting fibers 11, an MPO splice 2 disposed at a connection between the plurality of receiving fibers 12 and one end of the plurality of transmitting fibers 11, a receiving end 3 disposed at the other end of the plurality of receiving fibers 12, a transmitting end 4 disposed at the other end of the plurality of transmitting fibers 11, and connecting pieces 5 respectively disposed on the receiving fibers 12 and the transmitting fibers 11. The MPO tabs 2 are generally block-shaped. The receiving end 3 and the transmitting end 4 are both optical fiber arrays. The connecting piece 5 comprises a socket and a plug, the plug is connected with the MPO connector 2 through the transmitting optical fiber 11 or the receiving optical fiber 12, the socket is connected with the receiving end 3 or the transmitting end 4 through the transmitting optical fiber 11 or the receiving optical fiber 12, and the socket and the plug are detachably connected, so that when the end face of the transmitting optical fiber 11 on the transmitting end 4 or the receiving optical fiber 12 on the receiving end 3 is damaged, the whole MPO multi-core optical fiber connector 100 can be prevented from being disassembled by replacing the corresponding part of the transmitting end 4 or the receiving end 3, and the whole MPO multi-core optical fiber connector 100 can be directly scrapped when only one optical fiber end face is damaged in the prior art, and the product yield can be improved.

Specifically, referring to fig. 2 and fig. 3, as a specific implementation manner of this embodiment, the plug is a first ferrule 51, and the first ferrule 51 is substantially cylindrical. One end of the first ferrule 51 is connected to the transmitting fiber 11 or the receiving fiber 12. In this embodiment, sixteen transmitting optical fibers 11 and sixteen receiving optical fibers 12 are provided, that is, sixteen sockets and sixteen plugs are provided, and the transmitting optical fibers 11 and the receiving optical fibers 12 are provided in one-to-one correspondence with the first ferrules 51 and the sockets.

Specifically, referring to fig. 2 to 4, as a specific implementation manner of the present embodiment, the socket includes a sleeve 52 and a second ferrule 53. The sleeve 52 is substantially cylindrical. The second ferrule 53 is substantially cylindrical. The second ferrule 53 is disposed at an end of the sleeve 52 facing away from the MPO connector 2, and the second ferrule 53 is connected to the transmitting fiber 11 or the receiving fiber 12 on a side facing the transmitting end 4 or the receiving end 3, specifically, the transmitting fiber 11 or the receiving fiber 12 passes through the sleeve 52 to be connected to the second ferrule 53 in the sleeve 52, so that the sleeve 52 and the second ferrule 53 form a single socket. The diameter of the sleeve 52 is adapted to the diameter of the first ferrule 51 so that the first ferrule 51 can be inserted into the sleeve 52. When the first ferrule 51 is inserted within the sleeve 52, the first ferrule 51 contacts the second ferrule 53, thereby allowing signals to be transmitted between the first ferrule 51 and the second ferrule 53.

Specifically, referring to fig. 2 to 4, as a specific implementation manner of the present embodiment, the first ferrule 51 and the sleeve 52 are in interference fit, specifically, the diameter of the first ferrule 51 is slightly larger than the diameter of the sleeve 52, so that after the first ferrule 51 is inserted into the sleeve 52, the first ferrule 51 and the sleeve 52 can be kept from falling off. The first ferrule 51 may be separated from the sleeve 52 by forcibly drawing the first ferrule 51, so that the socket and the plug may be detachably coupled.

Specifically, referring to fig. 2, as a specific implementation manner of this embodiment, the bushing 52 is a ceramic bushing 52, and the ceramic has the advantages of high hardness, high temperature resistance and corrosion resistance, so that the ceramic bushing 52 can be used in a severe environment and has a long service life.

Specifically, referring to fig. 2 and 3, as a specific implementation manner of the present embodiment, the diameter of the first ferrule 51 is 1.25 mm or 1 mm, and the diameter of the second ferrule 53 is 1.25 mm or 1 mm. The 1.25 mm and 1 mm ceramic ferrules are general ferrules in the optical communication industry, and can meet the requirement of interchangeable use of various scenes, so that the MPO multi-core optical fiber connector 100 has good universality.

Specifically, referring to fig. 1, as a specific implementation manner of this embodiment, the transmitting fiber 11 and the receiving fiber 12 are provided with 16 fibers in total, and the transmitting fiber 11 and the receiving fiber 12 are provided with 8 fibers respectively, that is, there are 16 fibers between the MPO connector 2 and the first ferrule 51 in total, and meanwhile, there are 16 fibers between the second ferrule 53 and the transmitting end 4 and between the receiving end 3. However, the number of the optical fibers is not limited to 16, for example, in other embodiments, the number of the optical fibers is also 12 or 24, and correspondingly, the number of the first ferrule 51 and the second ferrule 53 is also modified.

Specifically, referring to fig. 1, as a specific implementation manner of this embodiment, two transmitting ends 4 and two receiving ends 3 are provided, the two transmitting ends 4 are disposed in close proximity, one receiving end 3 is located at one side of the two transmitting ends 4, and the other receiving end 3 is located at the other side of the two transmitting ends 4. Each of the emission ends 4 is connected with four emission optical fibers 11, and each of the emission ends 4 is an optical fiber array. Each of the receiving ends 3 is connected with four receiving optical fibers 12, and each of the receiving ends 3 is an optical fiber array.

In summary, the present invention provides an MPO multi-core fiber connector 100, in the present invention, the receiving end 3 and the transmitting end 4 are both fiber arrays. The connecting piece 5 comprises a socket and a plug, the plug is connected with the MPO connector 2 through the transmitting optical fiber 11 or the receiving optical fiber 12, the socket is connected with the receiving end 3 or the transmitting end 4 through the transmitting optical fiber 11 or the receiving optical fiber 12, and the socket and the plug are detachably connected, so that when the end face of the transmitting optical fiber 11 on the transmitting end 4 or the receiving optical fiber 12 on the receiving end 3 is damaged, the whole MPO multi-core optical fiber connector 100 can be prevented from being disassembled by replacing the corresponding part of the transmitting end 4 or the receiving end 3, and the whole MPO multi-core optical fiber connector 100 can be directly scrapped when only one optical fiber end face is damaged in the prior art, and the product yield can be improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Naturally, the above-mentioned embodiments of the present invention are described in detail, but it should not be understood that the scope of the present invention is limited thereby, and other various embodiments of the present invention can be obtained by those skilled in the art without any inventive work based on the present embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. An MPO multi-core fiber optic connector, comprising:

a plurality of receiving fibers and a plurality of transmitting fibers;

2. The MPO multicore fiber connector of claim 1, wherein the plug is a first ferrule.

3. The MPO multi-fiber optic connector of claim 2, wherein the receptacle includes a ferrule and a second ferrule;

the diameter of the sleeve is matched with that of the first ceramic ferrule;

4. The MPO multi-fiber connector of claim 3, wherein the first ferrule is an interference fit with the ferrule.

5. The MPO multi-fiber connector of claim 3, wherein the ferrule is a ceramic ferrule.

6. The MPO multi-fiber connector of claim 3, wherein the first ferrule has a diameter of 1.25 millimeters or 1 millimeter;

the second ferrule has a diameter of 1.25 millimeters or 1 millimeter.

7. The MPO multi-fiber connector of claim 1, wherein there are 8 each of said transmitting and receiving fibers.

8. The MPO multi-fiber optical fiber connector according to claim 7, wherein there are two of the transmitting ends and the receiving ends, four of the transmitting fibers are connected to each transmitting end, and four of the receiving fibers are connected to each receiving end.