CN212965523U

CN212965523U - A fine piece of dish for optical module

Info

Publication number: CN212965523U
Application number: CN202022077012.8U
Authority: CN
Inventors: 胡朝阳; 金梦溪; 刘楠
Original assignee: Suzhou Haiguang Xinchuang Photoelectric Technology Co ltd
Current assignee: Suzhou Haiguang Xinchuang Photoelectric Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-04-13
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a dish fine part for optical module for the dish of multiplexer/demultiplexer is fine, multiplexer/demultiplexer include the AWG chip and with the fiber array that the AWG chip is connected, fiber array includes a plurality of input fiber and an output fiber, a dish fine part for optical module is including a body, a fixed subassembly of a plurality of optic fibre has on the body, when twining fine input fiber with the embedding of output fiber among the fixed subassembly of optic fibre. The optical fiber coiling path is limited by the optical fiber fixing component during coiling, and the optical fiber position is limited by the optical fiber fixing component after coiling. The optical fiber coiling piece for the optical module can be used for quickly and conveniently completing the optical fiber coiling operation, and the production efficiency is improved.

Description

A fine piece of dish for optical module

Technical Field

The utility model relates to an optical module technical field, more accurate saying so relates to a fine piece of dish for optical module.

Background

With the increasing demand of the market for data transmission, the 100G optical module is becoming the mainstream optical module. For example, 100G QSFP28CWDM4 is a standard promulgated by the CWDM4 MSA organization, which is a 100G transmission mode based on single mode Coarse Wavelength Division Multiplexing (CWDM) technology. The 100G QSFP28CWDM4 optical module adopts a duplex LC interface, optical signals with four central wavelengths are converged together by a Multiplexer (MUX) at a receiving end and are coupled into an optical fiber for transmission, the optical signals with multiple wavelengths are separated by a Demultiplexer (DEMUX), and then the optical signals are further processed by an optical receiver to recover the original signals. Among them, the AWG (arrayed waveguide grating) + FA (fiber array) scheme is one of the mainstream design schemes of the optical module. As shown in fig. 1, the multiplexer 1 includes an AWG chip 11 and an optical fiber array 12 connected to the AWG chip 11, the optical fiber array 12 includes 4 input

optical fibers

121 and 1 output optical fiber 122, and the demultiplexer has the same structure. The AWG + FA scheme is limited by the internal space of the optical module and the optical fiber needs to be coiled and fixed in order to ensure the stability of the optical fiber transmission system, so that the purposes of protecting the optical fiber, reducing loss and ensuring the performance of products are achieved.

Taking a 100G QSFP28CWDM4 optical module as an example, the optical module is limited by a protocol, the internal space of the optical module is limited, optical fibers in an optical fiber array of MUX/DEMUX in the module need to be wound, the bending radius of the optical fibers needs to be less than 7mm, the characteristics of fragile texture, poor mechanical strength and the like of bare optical fibers need to be overcome, the product is finally ensured to meet the mechanical and environmental reliability standards of MS/MV, TC and the like, and higher requirements are provided for the optical fiber layout in the product.

In the prior art, the AWG + FA scheme fiber arrangement generally adopts a method of winding fibers inside an optical module structure manually or by using an auxiliary tool, and then fixing the fibers in a dispensing or pressing manner. Due to the characteristics of the optical fiber, the existing method has some defects: firstly, the internal knot space of the optical module is limited, the fiber coiling operation difficulty is high, and the operation time is long; the fiber coiling operation has no fixed path, the position for dispensing and fixing can not be determined, the operation is difficult, and the efficiency is low; if the optical fiber is fixed by the glue, the cured glue can generate a shearing effect on the optical fiber in the processes of impact and vibration, damage is caused to the optical fiber, and signal transmission is influenced; if the optical fiber is fixed in a pressing mode, the optical fiber can be directly or indirectly damaged due to poor mechanical strength of the optical fiber; if the metal part is adopted for fixing, the produced metal part has edge edges inevitably, so that the optical fiber is easy to scratch and break due to the process problem.

SUMMERY OF THE UTILITY MODEL

In view of this, the main object of the present invention is to provide a fiber coiling member for optical module, which has a plurality of optical fiber fixing assemblies for positioning and limiting optical fibers, and defines a fiber coiling path through the optical fiber fixing assemblies during fiber coiling, and defines an optical fiber position through the optical fiber fixing assemblies after the fiber coiling is completed.

In order to achieve the above object, the present invention provides a fiber coiling member for an optical module, which is used for coiling a fiber of a multiplexer/demultiplexer, wherein the multiplexer/demultiplexer comprises an AWG chip and an optical fiber array connected to the AWG chip, the optical fiber array comprises a plurality of input optical fibers and an output optical fiber, the fiber coiling member for the optical module comprises a member body, the member body is provided with a plurality of optical fiber fixing components, and the input optical fibers and the output optical fibers are embedded into the optical fiber fixing components when the fiber coiling member is coiled.

Preferably, the optical fiber fixing component is located at an edge portion of the body.

Preferably, the optical fiber fixing assembly comprises a first fixing piece, a second fixing piece and a closing piece, wherein the first fixing piece is positioned at the edge of the body, and the second fixing piece is positioned on the body; a gap is formed between the second fixing piece and the first fixing piece; when the optical fibers are wound, the input optical fibers and the output optical fibers are embedded in the gaps; and after the coiling of the fiber is finished, the closing piece is fixedly connected with the first fixing piece and the second fixing piece.

Preferably, the first fixing piece side part is connected with the piece body, and the lower part of the first fixing piece side part is hollow; the sectional area of one end, far away from the body, of the second fixing piece is larger than that of one end, connected with the body, of the second fixing piece.

Preferably, the body has a plurality of pillars on the surface thereof, and the input optical fiber and the output optical fiber are routed by the pillars when the fibers are coiled.

Preferably, the upright is a cylinder.

Preferably, the surface of the pillar has a layer of flexible material.

Preferably, the surface of the optical fiber fixing component is provided with a flexible material layer.

Preferably, the body is provided with an AWG fixed part which is a recess on the body; when the fiber is coiled, the AWG chip is placed in the AWG fixing part.

Preferably, the two sides of the AWG fixing part are respectively provided with a groove body communicated with the AWG fixing part.

Compared with the prior art, the utility model discloses an advantage that is used for fine piece of dish of optical module lies in: the optical fiber coiling piece for the optical module can be used for quickly and conveniently completing the optical fiber coiling operation, so that the production efficiency is improved; the optical fiber coiling piece for the optical module can wrap and protect the optical fiber and prevent the optical fiber from being damaged; after the optical fiber is fixed by the optical fiber fixing component, the optical fiber is still in a semi-free state, so that adverse effects caused by expansion with heat and contraction with cold between materials are reduced; an independent component is formed after the optical fiber is wound on the optical fiber winding part, so that the maintenance and the replacement are convenient; the optical fiber coiling piece for the optical module is low in production cost, simple and convenient in fiber coiling and low in labor cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a multiplexer/demultiplexer in the prior art.

Fig. 2 is a schematic structural diagram of a fiber coiling member for an optical module according to the present invention when the fiber is not coiled.

Fig. 3 is a schematic diagram of the structure of the AWG chip of the multiplexer/demultiplexer fixed in the optical fiber disk for the optical module.

Fig. 4 is a schematic diagram of a fiber winding in the fiber winding member for an optical module.

Fig. 5 is a schematic diagram of the optical fiber coiling device for an optical module after completion of optical fiber coiling.

Fig. 6 is a schematic structural diagram of the optical fiber coiling member for an optical module after the optical fiber coiling member encloses the optical fiber fixing assembly.

Fig. 7 is an enlarged schematic view of a portion a in fig. 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 2, 6 and 7, a fiber winding member 2 for an optical module according to the present invention includes a member 20, the member 20 has an AWG fixing portion 21, a plurality of optical fiber fixing assemblies 22, and a plurality of posts 23, and the AWG fixing portion 21, the optical fiber fixing assemblies 22, and the posts 23 are all located on the same plane of the member 20. The AWG fixing portion 21 is a depression in the body 20, and the AWG chip 11 is placed in the AWG fixing portion 21 when the fiber is wound. The optical fiber fixing member 22 is located at an edge portion of the body 20, and the input optical fiber 121 and the output optical fiber 122 are embedded in the optical fiber fixing member 22 when the optical fibers are wound. The post 23 is located in the middle of the body 20, and the input optical fiber 121 and the output optical fiber 122 are routed by the post 23 when the fibers are wound.

Specifically, the AWG fixing part 21 is preferably provided in the middle of the edge of the body 20. The AWG fixing part 21 has two grooves 211 on both sides thereof, respectively, which are in communication with the AWG fixing part 21, and an operator can conveniently take out the AWG chip 11 from the AWG fixing part 21 through the two grooves 211. By arranging the AWG fixing part, the AWG chip 11 can be conveniently positioned and fixed, and subsequent fiber coiling operation is facilitated. Note that the AWG fixing portion may not be provided on the body 20, the AWG chip 11 may be connected to the body 20 by means of an adhesive, mechanical fixing, or the like, or the AWG chip 11 may not be fixed to the body 20.

The optical fiber fixing component 22 preferably adopts an ear clip structure, the optical fiber fixing component 22 includes a first fixing member 221, a second fixing member 222 and a closing member 223, the first fixing member 221 is located at the edge of the body 22, the second fixing member 222 is located on the body 22, a gap is formed between the second fixing member 222 and the first fixing member 221, and the optical fiber is embedded into the gap between the first fixing member 221 and the second fixing member 222 when the optical fiber is coiled. In order to prevent the optical fiber inserted into the gap between the first fixing member 221 and the second fixing member 222 from being separated, it is preferable that the first fixing member 221 is connected to the body 20 at a side portion thereof, and a lower portion thereof is formed, and a sectional area of the second fixing member 222 away from the body 20 is larger than that of the end of the connector body 20, so that the optical fiber is blocked by the first fixing member 221 and the second fixing member 222 after entering the gap, and can be taken out when necessary. After the optical fiber is coiled, the closing piece 223 is fixedly connected with the first fixing piece 221 and the second fixing piece 222, the gap between the first fixing piece 221 and the second fixing piece 222 is closed, the optical fiber can be fixed, the optical fiber can move along the axial direction of the optical fiber and is in a semi-free state, and the damage to the optical fiber caused by expansion caused by heat and contraction caused by cold can be effectively prevented.

In order to prevent the optical fiber from being cut, it is preferable to provide a corner portion of the optical fiber reel 2 for the optical module with a round-corner treatment. Specifically, the corners of the member body 20 are rounded, the corners of each component in the optical fiber fixing assembly 22 are rounded, and the column 23 is a cylinder. Furthermore, the surfaces of the optical fiber fixing component 22 and the upright column 23 can be provided with flexible material layers to protect the optical fibers, and meanwhile, friction force can be increased to prevent the optical fibers from moving, so that the fixing effect is improved.

It should be noted that the closing member 223 in the optical fiber fixing assembly 22 may be replaced by dispensing, which is performed after the fiber winding is completed, to close the gap between the first fixing member 221 and the second fixing member 222. The optical fiber fixing assembly 22 may also use a semi-closed or fully-closed structure such as a bayonet, so that the optical fiber is still in a free state after the fiber coiling is completed.

As shown in fig. 3 to 6, steps of winding the optical fiber by using the optical fiber winding member 2 for the optical module are schematically illustrated. As shown in fig. 3, the multiplexer/demultiplexer 1 is first fixed on the body 20, i.e. the AWG chip 11 is placed in the AWG fixing part 21; then, as shown in fig. 4, the input optical fiber 121 and the output optical fiber 122 are passed through the optical fiber fixing component 22 according to the fiber coiling path, and the fiber coiling is completed in the state shown in fig. 5; finally, as shown in FIG. 6, the fiber securing assembly 22 is closed to secure the optical fiber. The fiber coiling operation can be finished outside the optical module and is not limited by the internal space of the module. The optical fiber path can be clearly indicated by the optical fiber fixing component 22, so that the fiber coiling operation can be conveniently and quickly completed. The optical fiber coiling piece 2 for the optical module after the optical fiber coiling is finished forms an independent assembly, and subsequent maintenance and replacement operations can be facilitated.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fiber coiling piece for an optical module is used for the fiber coiling of a multiplexer/demultiplexer, the multiplexer/demultiplexer comprises an AWG chip and a fiber array connected with the AWG chip, the fiber array comprises a plurality of input fibers and an output fiber, and the fiber coiling piece for the optical module comprises a piece body, a plurality of fiber fixing components are arranged on the piece body, and the input fibers and the output fibers are embedded into the fiber fixing components when the fibers are coiled.

2. A fiber optic puck according to claim 1, wherein said fiber holding assembly is located at an edge of said puck body.

3. A fiber optic puck according to claim 2, wherein said fiber optic holding assembly comprises a first holding member, a second holding member, and a closure, said first holding member being located at an edge of said body, said second holding member being located on said body; a gap is formed between the second fixing piece and the first fixing piece; when the optical fibers are wound, the input optical fibers and the output optical fibers are embedded in the gaps; and after the coiling of the fiber is finished, the closing piece is fixedly connected with the first fixing piece and the second fixing piece.

4. A disc fiber member for an optical module according to claim 3, wherein said first fixing member has a side portion connected to said body and a lower portion formed with a space; the sectional area of one end, far away from the body, of the second fixing piece is larger than that of one end, connected with the body, of the second fixing piece.

5. A fiber reel for optical modules according to claim 1, wherein said body has a plurality of posts thereon, said posts being located on a surface of said body, said input optical fiber and said output optical fiber being routed by said posts when the fiber is reeled.

6. A disc fiber for a light module according to claim 5, wherein said post is a cylinder.

7. A puck fiber optic for a light module according to claim 5, wherein said stud surface has a layer of flexible material.

8. A puck according to claim 1, wherein said fiber holding assembly surface has a layer of flexible material.

9. A fiber reel for an optical module according to claim 1, wherein said body has an AWG fixing portion, said AWG fixing portion being a depression on said body; when the fiber is coiled, the AWG chip is placed in the AWG fixing part.

10. A disc fiber member for an optical module according to claim 9, wherein both sides of the AWG fixing part are respectively provided with grooves communicating with the AWG fixing part.