CN214895926U

CN214895926U - Optical module of integrated optical cable

Info

Publication number: CN214895926U
Application number: CN202120567932.XU
Authority: CN
Inventors: 张丽丽; 徐柳; 金梦溪; 胡朝阳
Original assignee: Suzhou Haiguang Xinchuang Photoelectric Technology Co ltd
Current assignee: Suzhou Haiguang Xinchuang Photoelectric Technology Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-11-26
Anticipated expiration: 2031-03-19

Abstract

The utility model discloses an optical module of integrated optical cable, including optical module subassembly and optical cable subassembly, the optical module subassembly includes the shell, the fixed mounting PCBA board in the shell, fixed connection photodiode array chip and a plurality of light-emitting component on the PCBA board; one end of the optical cable assembly is connected with the shell, one end of the optical cable assembly, which is connected with the shell, extends out of the FA optical fiber array assembly and the LC metal insertion cores, the FA optical fiber array assembly is connected with the photodiode array chip, and the LC metal insertion cores are respectively connected with the light-emitting assemblies. The optical module of the integrated optical cable can be modulated with the optical cable, the matching performance of the optical module and the optical cable is better, and the overall system cost can be effectively reduced by adopting the optical module of the integrated optical cable.

Description

Optical module of integrated optical cable

Technical Field

The utility model relates to a relevant technical field of optical communication, more accurate saying so relates to an optical module of integrated optical cable.

Background

With the development of information technology, high-speed optical communication networks of 100G and more have rapidly become widespread. In 100G, 200G and 400G optical modules, a special application with a transmission distance of about 0-500m, such as 100G PSM4, 400G DR4 and the like, is specially defined in optical module product packaging structures and interface types defined by some standard organizations in the industry, and the interface characteristics of the products are that single-mode optical fibers are adopted for parallel transmission, and the maximum distance can be supported to 500 m. In an optical communication application scene, especially a part of application scenes of a data center, the modules such as 100G PSM4, 400G DR4 and the like are applied to an intercommunication application within 50 m.

At present, most of single-mode parallel optical modules are still independent optical modules, and the wiring is carried out by a data center or a system manufacturer. In order to prevent the connection performance of the system from being affected by additional insertion loss due to poor connection matching between the optical module and the jumper, the jumper with better service performance is needed to ensure the stability of mutual transmission of the optical modules, and the cost is higher. In addition, two MPO connectors are needed when the optical module is connected with the optical cable, and in order to ensure the stability of performance, the MPO connector with higher precision is needed, so that the cost is higher. In addition, the optical module and the optical cable are plugged for many times, so that the end face of the optical module connected with the optical cable is possibly dirty, and the performance of the optical module and the optical cable is reduced.

In summary, there is a need in the art for an optical module that is better compatible with optical cables and has a lower system cost.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide an optical module integrated with an optical cable, which combines an optical path structure inside the optical module with an external optical cable.

In order to achieve the above object, the utility model provides an optical module of integrated optical cable, including optical module subassembly and optical cable subassembly, the optical module subassembly includes the shell, the fixed mounting PCBA board in the shell, fixed connection photodiode array chip and a plurality of light-emitting component on the PCBA board; one end of the optical cable assembly is connected with the shell, one end of the optical cable assembly, which is connected with the shell, extends out of the FA optical fiber array assembly and the LC metal insertion cores, the FA optical fiber array assembly is connected with the photodiode array chip, and the LC metal insertion cores are respectively connected with the light-emitting assemblies.

Preferably, a fixing assembly is arranged in the housing, the fixing assembly is mounted at one end of the housing connected with the optical cable assembly, the fixing assembly comprises a first fixing piece and a second fixing piece, and the first fixing piece and the second fixing piece are oppositely arranged; one end of the optical cable assembly, which is connected with the optical module assembly, is provided with a metal stop, the metal stop is positioned in the shell and between the first fixing piece and the second fixing piece, and the metal stop is clamped by the first fixing piece and the second fixing piece.

Preferably, the housing comprises an upper cover and a lower cover which in combination form the housing.

Preferably, a pull ring is installed between the upper cover and the lower cover, and the upper cover, the lower cover and the pull ring are fixed by a plurality of screws.

Preferably, a plurality of light emitting components are fixed on the PCBA board through a soft board.

Preferably, the optical cable assembly has a polished rod cable sheath; one end of the optical cable assembly, which is far away from the optical module assembly, is provided with an MPO connector, and the end of the MPO connector, which is far away from the optical module assembly, is provided with a detachable MPO dust cap; the MPO connector is provided with a tail sleeve at one end facing the optical module assembly, and the metal stop is provided with a tail sleeve at one end far away from the optical module assembly.

Compared with the prior art, the utility model discloses an optical module of integrated optical cable's advantage lies in: the optical module of the integrated optical cable can be modulated with the optical cable, and the matching performance of the optical module and the optical cable is better; the optical module adopting the integrated optical cable can effectively reduce the overall system cost; the optical module and the optical cable do not need to be plugged and unplugged, and performance degradation caused by end face dirt due to frequent plugging and unplugging is effectively prevented.

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 structural diagram of an optical module of an integrated optical cable according to the present invention.

Fig. 2A shows a top view of the optical module assembly.

Fig. 2B shows a bottom view of the optical module assembly.

Fig. 3 is a schematic diagram of the internal structure of the optical module assembly.

Fig. 4 is a schematic diagram of a cable assembly.

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. 1, an optical module integrated with an optical cable according to the present invention includes an optical module assembly 101 and an optical cable assembly 102, and one end of the optical cable assembly 102 is connected to one end of the optical module assembly 101. Specifically, as shown in fig. 2A, 2B and 3, the optical module assembly 101 includes a housing 20, a PCBA board 205 is fixedly mounted inside the housing 20, a plurality of light emitting assemblies 207 are fixedly connected to the PCBA board 205, and a photodiode array chip 209 is simultaneously and fixedly connected to the PCBA board 205; one end of the optical cable assembly 102 is connected with the housing 20, and one end of the optical cable assembly 102 connected with the housing 20 extends out of the FA fiber array assembly 301 and the LC metal ferrules 302, the FA fiber array assembly 301 is connected with the photodiode array chip 209, and the LC metal ferrules 302 are respectively connected with the light emitting assemblies 207.

Specifically, the housing 20 includes an upper cover 201 and a lower cover 202, the upper cover 201 and the lower cover 201 are combined to form the housing 20, and the upper cover 201 and the lower cover 202 are fixedly connected by a plurality of screws 203. Further, a pull ring 204 is installed between the upper cover 201 and the lower cover 202, and the pull ring 204 is fixed by a plurality of screws 203. The LC metal ferrules 302 are respectively connected with the light-emitting components 207 and are fixed by glue. The FA optical fiber array assembly 301 is fixed by glue while being connected with the photodiode array chip 209.

Specifically, the PCBA board 205 is connected to the housing 20 by a number of screws 206. A number of light emitting elements 207 are secured to the PCBA board 205 by flexible sheets 208. The photodiode array chip 209 is fixed on the PCBA board 205 by silver paste.

A fixing assembly is arranged in the shell 20 and is installed at one end of the shell 20 connected with the optical cable assembly 102, the fixing assembly comprises a first fixing piece 211 and a second fixing piece 212, and the first fixing piece 211 and the second fixing piece 212 are oppositely arranged; one end of the optical cable assembly 102 connected with the optical module assembly 101 is provided with a metal stopper 303, the metal stopper 303 is located inside the housing 20, the metal stopper 303 is located between the first fixing piece 211 and the second fixing piece 212, the metal stopper 303 is clamped by the first fixing piece 211 and the second fixing piece 212, and the optical cable assembly 102 is connected with the housing 20 through the fixing assemblies.

As shown in fig. 4, cable assembly 102 has a polished fiber cable jacket to protect the optical fibers therein. The end of the cable assembly 102 remote from the optical module assembly 101 has an MPO connector 307, and the end of the MPO connector 307 remote from the optical module assembly 101 has a removable MPO dust cap 308. Further, the MPO connector 307 has a tail sleeve 305 at the end facing the optical module assembly 101 and a tail sleeve 306 at the end of the metal stop 303 remote from the optical module assembly 101.

In the assembling process of the optical module of the integrated optical cable, firstly, a light-emitting component 207 is welded on a PCBA board 205 through a soft board 208; then, the LC metal inserting core 302 is connected with the light-emitting component 207 and fixed through glue; then, the PCBA 205 with the optical cable component 102 is subjected to light-emitting end test; then the PCBA board 205 is provided with the optical cable assembly 102 for receiving end coupling, and the FA optical fiber array assembly 301 and the photodiode array chip 209 are fixed through glue after active optical coupling; then the PCBA board 205 with the light emitting end and the light receiving end being coupled for testing is fixed in the housing 20 by the first fixing member 211 and the second fixing member 212 and the screws 207; finally, the pull ring 205 is clamped in the lower cover 202 and the upper cover 201 and fixed by the screw 204.

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. An optical module of an integrated optical cable is characterized by comprising an optical module component and an optical cable component, wherein the optical module component comprises a shell, a PCBA board is fixedly installed in the shell, and a photodiode array chip and a plurality of light-emitting components are fixedly connected onto the PCBA board; one end of the optical cable assembly is connected with the shell, one end of the optical cable assembly, which is connected with the shell, extends out of the FA optical fiber array assembly and the LC metal insertion cores, the FA optical fiber array assembly is connected with the photodiode array chip, and the LC metal insertion cores are respectively connected with the light-emitting assemblies.

2. The optical module of an integrated optical cable according to claim 1, wherein a fixing member is disposed in the housing, the fixing member being mounted at an end of the housing connected to the optical cable assembly, the fixing member including a first fixing member and a second fixing member, the first fixing member and the second fixing member being disposed opposite to each other; one end of the optical cable assembly, which is connected with the optical module assembly, is provided with a metal stop, the metal stop is positioned in the shell and between the first fixing piece and the second fixing piece, and the metal stop is clamped by the first fixing piece and the second fixing piece.

3. The fiber optic integrated cable optical module of claim 1, wherein the housing includes an upper cover and a lower cover that combine to form the housing.

4. The optical module of an integrated optical cable according to claim 3, wherein a pull ring is installed between the upper cover and the lower cover, and the upper cover, the lower cover, and the pull ring are fixed by a plurality of screws.

5. A fiber optic integrated cable light module as claimed in claim 1, wherein a plurality of light emitting elements are secured to said PCBA board by flexible sheets.

6. The fiber optic integrated cable optical module of claim 1, wherein the cable assembly has a polished cable jacket; one end of the optical cable assembly, which is far away from the optical module assembly, is provided with an MPO connector, and the end of the MPO connector, which is far away from the optical module assembly, is provided with a detachable MPO dust cap; the MPO connector is provided with a tail sleeve at one end facing the optical module assembly, and the metal stop is provided with a tail sleeve at one end far away from the optical module assembly.