CN215264134U

CN215264134U - Coupling self-positioning double-row optical fiber array

Info

Publication number: CN215264134U
Application number: CN202121023883.XU
Authority: CN
Inventors: 侯伟; 张连军
Original assignee: Twinstar Technologies Co ltd
Current assignee: Twinstar Technologies Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-12-21
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a double fiber array of coupling self-align, including big base plate, the upper surface of big base plate is seted up flutedly and first V type groove, first V type position is inside the recess, be provided with little base plate in the recess, second V type groove has been seted up to the lower surface of little base plate, third V type groove has been seted up to the upper surface of little base plate, the apron is installed to the top of little base plate, fourth V type groove has been seted up to the lower surface of apron, fourth V type groove, third V type groove, second V type groove, first V type groove is parallel to each other and one-to-one, the inside in first V type groove and second V type groove is fixed with the naked fine end of first row fiber array, the inside in third V type groove and fourth V type groove is fixed with the naked fine end of second row fiber array. The utility model discloses can realize the high accuracy location of two rows of optic fibre, can fix a position the installation through the V type groove on the silicon chip in locating pin and the module with the module coupling, can reduce the coupling time, realize the operation of automatic coupling.

Description

Coupling self-positioning double-row optical fiber array

Technical Field

The utility model belongs to the technical field of the optical fiber information transmission, especially, relate to a double fiber array of coupling self-align.

Background

With the development of the internet and big data, the construction of a large data center is increasingly important, the data center is composed of a large number of servers, a large amount of data exchange is required between the servers, and optical fiber interconnection has replaced electronic interconnection and becomes the most important interconnection technology of the data center. In supercomputer systems, high-speed data exchange is required between cabinets for parallel operation, and optical fiber interconnections have also replaced electronic interconnections. In order to meet the requirement of massive high-speed data exchange, parallel optical fiber transmission modules are generally adopted in the optical fiber interconnection technology.

In a parallel fiber transmission module integrating transceiving and transmitting, people hope to arrange a Vertical Cavity Surface Emitting Laser (VCSEL) array and a Photodetector (PD) array into two rows, and couple and butt-joint the VCSEL array and the PD array with a double-row fiber array to realize transmitting and receiving of optical signals. However, in the conventional double-row optical fiber array, two single-row optical fiber arrays are generally stacked together, and then the relative positions of the two rows of optical fibers are aligned through some kind of clamping structure. The existing double-row optical fiber array structure can ensure the positioning precision inside each row of optical fibers, but the positioning precision between two rows of optical fibers is much lower, and the requirement of high-efficiency coupling of optical signals cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, convenient to use's double fiber array of coupling self-align.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a coupling self-positioning double-row optical fiber array comprises a large substrate, wherein a groove and a first V-shaped groove are formed in the upper surface of the large substrate, the first V-shaped groove is positioned inside the groove, a small substrate is arranged in the groove, a second V-shaped groove is formed in the lower surface of the small substrate, a third V-shaped groove is formed in the upper surface of the small substrate, a cover plate is arranged above the small substrate, a fourth V-shaped groove is formed in the lower surface of the cover plate, the fourth V-shaped groove, the third V-shaped groove, the second V-shaped groove and the first V-shaped groove are parallel and correspond to each other one by one, bare fiber ends of a first row of optical fiber array are fixed inside the first V-shaped groove and the second V-shaped groove, and bare fiber ends of a second row of optical fiber array are fixed inside the third V-shaped groove and the fourth V-shaped groove, fifth V type groove has still been seted up to the upper surface of big base plate, and fifth V type groove is located the both sides of recess, installs the locating pin in the fifth V type groove.

Further, the positioning pin and the V-shaped groove on the silicon chip in the module are positioned and installed.

Further, the large substrate, the small substrate and the first row of optical fiber arrays are fixed through adhesives.

Further, the small substrate, the cover plate and the second row of optical fiber arrays are fixed through adhesives.

Further, the large substrate and the positioning pin are mounted through an adhesive.

The utility model has the advantages that:

the utility model provides a coupling is from double fiber array of positioning, the V type groove that the surface was seted up about the little base plate to unanimous with the V type groove position and the size of big base plate, apron, two rows of fiber array of fixed respectively again, thereby realize the high accuracy location of two rows of optic fibre. The utility model discloses can guarantee the positioning accuracy between every row of fiber array inside and two locating pins, realize the high density range of optic fibre port, the utility model discloses can fix a position the installation through the V type groove on locating pin and the silicon chip in the module with the module coupling, can reduce the coupling time, realize the operation from positioning coupling. The utility model has simple structure and convenient use.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a diagram showing the positional relationship between the present invention and a silicon chip.

In the figure: 1-a large substrate; 101-a first V-shaped groove; 102-fifth V-shaped groove; 2-small substrate; 201-a second V-shaped groove; 202-third V-shaped groove; 3-cover plate; 301-fourth V-groove; 4-a first row of fiber arrays; 5-a second row of fiber arrays; 6-positioning pins; 7-silicon chip; 701-sixth V-shaped groove; 8-circuit board.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments, and in addition, the specific embodiments described herein are only used for explaining the present invention and are not used for limiting the present invention.

As shown in fig. 1-3, the utility model discloses a coupling is from double fiber array of positioning, including big base plate 1, the upper surface of big base plate 1 is seted up flutedly and first V type groove 101, and first V type groove 101 is located inside the recess, is provided with little base plate 2 in the recess, and second V type groove 201 has been seted up to the lower surface of little base plate 2, and third V type groove 202 has been seted up to the upper surface of little base plate, and apron 3 is installed to the top of little base plate 2, and fourth V type groove 301 has been seted up to the lower surface of apron 3, fourth V type groove 301, third V type groove 202, second V type groove 201, mutual parallel and the one-to-one in first V type groove 101. The bare fiber ends of the first row of optical fiber arrays 4 are fixed in the first V-shaped groove 101 and the second V-shaped groove 201, the large substrate 1, the small substrate 2 and the first row of optical fiber arrays 4 are fixed through adhesives, the bare fiber ends of the second row of optical fiber arrays 5 are fixed in the third V-shaped groove 202 and the fourth V-shaped groove 301, and the small substrate 2, the cover plate 3 and the second row of optical fiber arrays 5 are fixed through adhesives. Fifth V type groove 102 has still been seted up to the upper surface of big base plate 1, and fifth V type groove 102 is located the both sides of recess, installs locating pin 6 through the binder in fifth V type groove 102, and when locating pin 6 and module well silicon chip 7 carried out location installation, silicon chip 7 was located circuit board 8, has seted up sixth V type groove 701 on the silicon chip 7, and locating pin 6 can buckle in sixth V type groove 701, carries out the location installation, further realizes automatic coupling.

When the optical fiber array is used, the coating layer of one end of the first row of optical fiber arrays 4 is removed, bare fibers are exposed and placed in the first V-shaped groove 101 of the large substrate 1, the bare fiber ends of the first row of optical fiber arrays 4 are pressed through the small substrate 2, the bare fiber ends of the first row of optical fiber arrays 4 are located in the first V-shaped groove 101 and the second V-shaped groove 201, and the large substrate 1, the small substrate 2 and the first row of optical fiber arrays 4 are fixed through adhesives. And then removing a coating layer from one end of the second row of optical fiber array 5 to expose bare fibers, placing the bare fibers in a third V-shaped groove 202 of the small substrate 2, pressing the bare fiber ends of the second row of optical fiber array 5 through a cover plate 3, positioning the bare fiber ends of the second row of optical fiber array 5 in the third V-shaped groove 202 and a fourth V-shaped groove 301, and fixing the small substrate 2, the cover plate 3 and the second row of optical fiber array 5 through adhesives. Fix the locating pin 6 through the binder again in fifth V type groove 102, in the sixth V type groove 701 that the locating pin 6 can be placed and set up on silicon chip 7, accomplish the utility model discloses with the location installation of silicon chip 7 in the module, and then realize double fiber array's self-align coupling.

Claims

1. A coupling self-positioning double-row optical fiber array is characterized by comprising a large base plate, wherein a groove and a first V-shaped groove are formed in the upper surface of the large base plate, the first V-shaped groove is positioned inside the groove, a small base plate is arranged in the groove, a second V-shaped groove is formed in the lower surface of the small base plate, a third V-shaped groove is formed in the upper surface of the small base plate, a cover plate is arranged above the small base plate, a fourth V-shaped groove is formed in the lower surface of the cover plate, the fourth V-shaped groove, the third V-shaped groove, the second V-shaped groove and the first V-shaped groove are parallel and correspond to each other one by one, bare fiber ends of the first row of optical fiber array are fixed inside the first V-shaped groove and the second V-shaped groove, bare fiber ends of the second row of optical fiber array are fixed inside the third V-shaped groove and the fourth V-shaped groove, fifth V type groove has still been seted up to the upper surface of big base plate, and fifth V type groove is located the both sides of recess, installs the locating pin in the fifth V type groove.

2. The coupled self-positioning dual row fiber array of claim 1, wherein the locating pins are positionally fixed with V-grooves on a silicon chip in a module.

3. The coupled self-positioning dual-row fiber array of claim 1, wherein the large substrate, the small substrate, and the first row of fiber arrays are secured by an adhesive.

4. The coupled self-positioning dual-row fiber array of claim 1, wherein the submount, cover plate, second row fiber array are secured by an adhesive.

5. The coupled self-positioning dual row fiber array of claim 1, wherein the large substrate, the locating pins are mounted by an adhesive.