CN211528747U

CN211528747U - MPO-FA optical passive device

Info

Publication number: CN211528747U
Application number: CN202020513528.XU
Authority: CN
Inventors: 刘斌
Original assignee: Suzhou Sutuo Communication Technology Co ltd
Current assignee: Suzhou Sutuo Communication Technology Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-09-18
Anticipated expiration: 2030-04-10

Abstract

The utility model provides a MPO-FA light passive device, including 24 core MPO ends of one end and 24 core FA ends of the other end. MPO has the advantages of space saving, high interchangeability, good plug-in performance, high-density wiring system, fast field configuration and the like; the application of the silicon chip FA and the optical fiber integrates a high-speed optical fiber interface with a silicon device produced by adopting an industrial standard CMOS manufacturing process, provides the performance advantage of optical fiber communication by reducing the consumption of expensive semiconductors, and has the characteristics of miniaturization, high performance and the like.

Description

MPO-FA optical passive device

Technical Field

The utility model relates to an optical fiber communication field especially relates to a MPO-FA light passive device.

Background

Mpo (multi Push on) is a type of multi-fiber connector adopted by the IEEE standard as one of the connector types for 40G/100G transmission. Fiber Arrays (FA) use V-grooves to mount a Fiber, bundle of fibers, or ribbon on an Array substrate. The silicon material FA is a new material FA and has remarkable optical fiber performance advantages. The MPO-FA optical passive device is mainly used in a 100G optical module, and currently, silicon FA has a good market prospect and has a very large development space.

Disclosure of Invention

The utility model aims at providing an MPO-FA light passive device, the combination of semiconductor silicon device can effectively reduce cost and provide the optical fiber performance advantage, and the application of silicon material is favorable to solving the product property ability problem under the present big data flow prospect moreover, realizes bigger information transmission, reduces transmission process resource cost. In order to realize the purpose, the utility model adopts the following technical scheme:

an MPO-FA optical passive device comprises an MPO end, an FA end and an optical fiber ribbon, wherein the MPO end and the FA end are connected through the optical fiber ribbon, the MPO end is a male head with a guide pin and is connected with other female heads on MPO through an MPO adapter; the optical fiber ribbon is composed of 2 12-core optical fibers; the FA end consists of an optical fiber, glue and a V-shaped groove, and the optical fiber is fixed on the inner wall of the V-shaped groove by the glue.

Further, the MPO end comprises an MPO shell, an MPO positioning key, a guide pin hole and a 24-multimode MT core.

Further, the 12-core optical fiber is a 12-color ribbon optical fiber and each is protected by an LSZH transparent hose.

Furthermore, the FA end also comprises a cover plate, and glue between the cover plate and the V-shaped groove is cured through a curing oven.

Further, the glue is 353ND glue.

Furthermore, the MPO end fiber penetrating mode is a straight-through mode, and an upper layer of optical fiber ribbon and a lower layer of optical fiber ribbon penetrate respectively.

Furthermore, the cover plate is a glass cover plate, and the optical fiber is pressed in the V-shaped groove by the glass cover plate at the FA end.

Compared with the prior art, the utility model has the advantages of: one end of the MPO is adopted, so that the device has the advantages of space saving, high interchangeability, good pluggable performance, high-density wiring system, fast field configuration and the like; the application of the silicon chip FA and the optical fiber integrates a high-speed optical fiber interface with a silicon device produced by adopting an industrial standard CMOS manufacturing process, provides the performance advantage of optical fiber communication by reducing the consumption of expensive semiconductors, and has the characteristics of miniaturization, high performance and the like.

Drawings

The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings. Wherein:

FIG. 1 is a schematic structural diagram of the MPO-FA optical passive device of the present invention;

FIGS. 2 (a) and (b) are top and front views of MT-FA of the present invention after removal of the MPO housing and guide pin;

FIG. 3 is a schematic diagram of the MPO end structure of the present invention;

fig. 4 (a) and (b) are schematic views of the FA terminal structure of the present invention, which show the end faces of the cover plate that is removed and not removed, respectively.

Wherein the reference numerals mean:

1. MPO end, 2, FA end, 3, optical fiber ribbon, 11, MPO shell, 12, MPO positioning key, 13, guide pin hole, 14, 24 multimode MT core, 21, body, 22, V groove, 23, cover plate, 31 and optical fiber.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, an MPO-FA passive optical device includes an MPO end 1 and an FA end 2, and an optical fiber ribbon 3 connects the MPO end and the FA end. The optical fiber ribbon 3 is composed of 2 12-core optical fibers 31, specifically 12-ribbon optical fibers, each with LSZH transparent hose protection. The optical fiber can be selected according to different configuration requirements of users, and can be selected from multiple optical fiber specifications such as multimode OM3, OM4, single mode G652D, G657A2 and the like, and in the design, multimode OM3 band fiber is adopted.

The MPO end 1 is a male head with a guide pin and is connected with other female heads on MPO through an MPO adapter. As shown in fig. 3, the MPO terminal 1 includes an MPO housing 11, an MPO positioning key 12, a guide pin hole 13, a 24 multi-mode MT core 14, wherein the MPO positioning key 12, the guide pin hole 13, the 24 multi-mode MT core 14 are all disposed inside the MPO housing 11. 24 the multimode MT core 14 forms a core inserting part of the MPO end 1, namely an MT end, a guide pin hole 13 is arranged on the MT end, and butt joint of MPO is realized by installing a guide pin; the MPO alignment key 12 allows for accurate mating of the two ends of the connector. The MPO end adopts a PC grinding mode.

As shown in fig. 4, the FA terminal 2 includes a body 21 and a cover plate 23, wherein V-grooves 22 are disposed on upper and lower sides of the body 21, the number of the V-grooves 22 on the two sides is 12, and each optical fiber 31 is disposed in the corresponding V-groove 22. The cover plate 23 and the V-shaped groove 22 are bonded by 353ND glue, and the glue is cured through a curing oven. The FA end presses the optical fiber 31 in the V-shaped groove 22 through the glass cover plate 23, and glue is poured into the side along one side to be heated and cured. During the specific operation, the stripped fiber is cleaned and then placed into a V-shaped groove 22 which is continuously heated on a curing furnace, then a glass cover plate 23 is used for lightly pressing the optical fiber 31 to enable the optical fiber to be in the groove, glue at one side point 353ND is used for enabling the glue to fully flow and fill the groove, then a clamp is used for pressing the cover plate until the curing is completed, and the FA curing at the other side is completed in the same way. The glass cover plate 23 helps to press the optical fiber 31 into the groove to enable the optical fiber 31 to be tightly attached to the inner wall, and on the other hand, the optical fiber 31 and the V-shaped groove 22 are protected in the grinding process conveniently, the glass cover plate 23 is taken down after grinding is completed, and the performance of a test product is checked in time. The MT end is also formed by 353ND glue through fiber penetration and solidification of the inserting core. The MPO end 1 is in a straight-through mode, and the upper layer of belt fiber and the lower layer of belt fiber are respectively penetrated.

The FA end 2 is mainly made of silicon and has better optical fiber transmission performance compared with the traditional FA. The good silicon material property of the material is superior to that of the traditional FA, and the market prospect is wide. The application of the semiconductor silicon device can meet the requirement of large data volume in the future, and the product performance is excellent. In the context of high data flow, the application of silicon devices is beneficial to improving the efficiency of optical products and the performance of products.

The above is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The invention is not limited to the embodiments described herein, but is capable of other embodiments according to the invention, and may be used in various other applications, including, but not limited to, industrial. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.

Claims

1. An MPO-FA optical passive device is characterized in that: the MPO terminal comprises an MPO terminal (1), an FA terminal (2) and an optical fiber ribbon (3), wherein the MPO terminal (1) and the FA terminal (2) are connected through the optical fiber ribbon (3), the MPO terminal (1) is a male head with a guide pin and is connected with female heads on other MPO through an MPO adapter; the optical fiber ribbon (3) is composed of 2 12-core optical fibers (31); the FA end (2) is composed of an optical fiber (31), glue and a V-shaped groove (22), and the optical fiber (31) is fixed on the inner wall of the V-shaped groove (22) through the glue.

2. The MPO-FA optical passive device of claim 1, wherein: the MPO end (1) comprises an MPO shell (11), an MPO positioning key (12), a guide pin hole (13) and a 24 multi-mode MT core (14).

3. The MPO-FA optical passive device of claim 1, wherein: the 12-core optical fiber (31) is a 12-color ribbon optical fiber and is respectively provided with LSZH transparent hose protection.

4. The MPO-FA optical passive device of claim 3, wherein: the FA end (2) further comprises a cover plate (23), and glue between the cover plate (23) and the V-shaped groove (22) is cured through a curing oven.

5. The MPO-FA optical passive device of claim 4, wherein: the glue is 353ND glue.

6. The MPO-FA optical passive device of claim 2, wherein: the MPO end (1) is in a straight-through type fiber penetrating mode, and an upper layer of optical fiber ribbon (3) and a lower layer of optical fiber ribbon (3) penetrate respectively.

7. The MPO-FA optical passive device of claim 4, wherein: the cover plate (23) is a glass cover plate, and the optical fiber (31) is pressed in the V-shaped groove (22) by the FA end (2) through the glass cover plate.