WO2019233010A1

WO2019233010A1 - Optical structure for improving electromagnetic radiation resistance performance and optical module

Info

Publication number: WO2019233010A1
Application number: PCT/CN2018/110043
Authority: WO
Inventors: 雷奖清; 王衍勇
Original assignee: 昂纳信息技术（深圳）有限公司
Priority date: 2018-06-05
Filing date: 2018-10-12
Publication date: 2019-12-12
Also published as: CN108873187A

Abstract

The present invention relates to the field of optical modules, and relates in particular to an optical structure for improving electromagnetic radiation resistance performance and an optical module; the optical structure is mounted on an optical module and comprises a first optical connector and a second optical connector, the first optical connector and second optical connector both being disposed on an optical path for transmitting optical signals between a first optical path transmission part of the optical module and an external connection head; an end of the first optical connector is connected to the first optical path transmission part by means of an optical fiber, while the other end is connected to an end of the second optical connector by means of an optical fiber, the other end of the second optical connector being connected to the connection head by means of an optical fiber. Optical connectors are provided between the optical module and the connection head of an external optical device so as to avoid direct contact between the optical module and the external environment, thereby improving the electromagnetic radiation resistance performance of the optical module.

Description

Optical structure for improving electromagnetic radiation resistance performance and optical module

Technical field

The present invention relates to the field of optical modules, and in particular, to an optical structure for improving electromagnetic radiation resistance and an optical module.

Background technique

In the field of optical communication, various optical modules are designed. Among them, the optical transceiver module is widely used in various scenarios, and under the market competition mechanism, the price of the optical transceiver module is getting lower and lower. In order to reduce costs, plastic materials are often used, and plastic lens molding is used instead of the complicated and expensive TO-Can (laser diode module) method. However, if a plastic lens is used for molding, referring to FIG. 1, the optical interface is directly exposed, which causes the electromagnetic radiation resistance of the integrated optical transceiver module to be greatly reduced.

Therefore, the need to design an optical structure and an optical module to improve the resistance to electromagnetic radiation has always been one of the key research issues for those skilled in the art.

technical problem

The technical problem to be solved by the present invention is to provide an optical structure with improved electromagnetic radiation resistance performance and an optical module in response to the above-mentioned shortcomings of the prior art. problem.

Technical solutions

In order to solve the technical problem, the present invention provides an optical structure for improving electromagnetic radiation resistance performance. The optical structure is mounted on an optical module. The optical structure includes a first optical connector and a second optical connector. The first optical connector and the second optical connector are both disposed on an optical path where the first optical path transmission part of the optical module and the external connector transmit optical signals to each other. The other end is connected to one end of a second optical connector through an optical fiber, and the other end of the second optical connector is connected to a connector.

The preferred solution is that the first optical connector includes a first ferrule, a first plug, and a first socket. The first socket is installed on the first optical path transmission portion, and the first ferrule is sleeved. In the first socket, the first plug is installed on the first ferrule, and the optical fiber passes through the first socket, the first ferrule, and the first plug.

Among them, a preferred solution is that the first optical connector further includes a first insertion ring, the optical module is provided with a first groove, and the first insertion ring is wound around the first socket and snaps in In the first groove.

Among them, a preferred solution is that the second optical connector includes a second ferrule, a second plug, and a second socket, the second socket is mounted on the connector, and the second ferrule is sleeved on the second In the socket, the second plug is installed on the second ferrule, and the optical fiber passes through the second socket, the second ferrule, and the second plug.

Among them, the preferred solution is that the second optical connector further includes a second insertion ring, the optical module is provided with a second groove, and the second insertion ring is wound around the second socket and snaps in In the second groove.

Among them, a preferred solution is that the optical structure further includes a third optical connector and a fourth optical connector, and the third optical connector and the fourth optical connector are both disposed in the second optical path transmission portion of the optical module and On the optical path where the external connectors transmit optical signals to each other, one end of the third optical connector is connected to the second optical path transmission portion through an optical fiber, and the other end is connected to one end of a fourth optical connector through the optical fiber, and the fourth optical connector The other end is connected to the connector through an optical fiber.

The preferred solution is that the third optical connector includes a third ferrule, a third plug, and a third socket. The third socket is installed on the second optical path transmission portion, and the third ferrule is sleeved. In the third socket, the third plug is installed on the third ferrule, and the optical fiber passes through the third socket, the third ferrule, and the third plug.

Among them, a preferred solution is that the fourth optical connector includes a fourth ferrule, a fourth plug, and a fourth socket, the fourth socket is mounted on the connector, and the fourth ferrule is sleeved on the fourth In the socket, the fourth plug is installed on the fourth ferrule, and the optical fiber passes through the fourth socket, the fourth ferrule, and the fourth plug.

The invention also provides a light module with improved anti-electromagnetic radiation performance. The light module includes a light emitting part and a light receiving part. A transmitting end of the light emitting part is provided with a first optical connector. A third optical connector is provided at the end. The optical module further includes a second optical connector and a fourth optical connector for connecting an external connector. The connector, the second optical connector, and the first optical connector. It is connected to the light transmitting part through an optical fiber, and the connector, the fourth optical connector, the third optical connector, and the light receiving part are connected through an optical fiber.

The preferred solution is that the first optical connector includes a first ferrule, a first plug, and a first socket. The first socket is installed on the first optical path transmission portion, and the first ferrule is sleeved. In a first socket, the first plug is mounted on a first ferrule, and an optical fiber passes through the first socket, the first ferrule, and the first plug; the second optical connector includes a second ferrule, a second A plug and a second socket, the second socket is mounted on the connector, the second ferrule is sleeved in the second socket, the second plug is mounted on the second ferrule, and the optical fiber passes through the second socket , A second ferrule, and a second plug; the third optical connector includes a third ferrule, a third plug, and a third socket, and the third socket is installed on the second optical path transmission portion, and the third plug The core is sleeved in a third socket, the third plug is installed on the third socket, and the optical fiber passes through the third socket, the third socket, and the third plug; the fourth optical connector includes a fourth socket A fourth plug and a fourth socket, the fourth socket is installed on the connector, and the fourth ferrule is sleeved on the fourth socket The fourth connector mounted on the fourth ferrule, the optical fiber through the fourth outlet, a fourth and a fourth plug ferrule.

Beneficial effect

The beneficial effect of the present invention is that, compared with the prior art, the present invention designs an optical structure to improve electromagnetic radiation resistance and an optical module. An optical connector is provided between the optical module and a connector of an external optical device. To avoid direct contact between the optical module and the external environment, thereby improving the electromagnetic radiation resistance of the optical module.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below with reference to the accompanying drawings and embodiments. In the drawings:

FIG. 1 is a schematic diagram of a prior art optical module;

2 is a schematic diagram of an optical module according to the present invention;

FIG. 3 is a schematic diagram of an optical connector according to the present invention.

Best Mode of the Invention

A preferred embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 2 and FIG. 3, the present invention provides a preferred embodiment of an optical structure with improved anti-electromagnetic radiation performance.

Specifically, referring to FIG. 2, an optical structure for improving electromagnetic radiation resistance performance, the optical structure is mounted on an optical module, the optical module is connected to a connector of an optical device, and the optical module and the optical device are mutually Transmitting optical signals; a metal pull ring 7 is provided on the optical module, and the gap under the metal pull ring 7 is used to fix the connector of the optical device; the optical structure includes a first optical connector 2 and a second optical connection Connector 3, the first optical connector 2 and the second optical connector 3 are both disposed on an optical path where the first optical path transmission portion 11 of the optical module and an external connector transmit optical signals to each other, the first optical connector 2 One end is connected to the first optical path transmission part 11 through the optical fiber 6, and the other end is connected to one end of the second optical connector 3 through the optical fiber 6, and the other end of the second optical connector 3 is connected to the connector, that is, the The first optical path transmission section 11, the first optical connector 2, the second optical connector 3, and the connector are sequentially connected through an optical fiber 6. The first optical connector 2 and the second optical connector 3 prevent the first optical path transmission part 11 of the optical module from being directly exposed, thereby improving the anti-electromagnetic radiation performance of the optical module. To save costs, the second optical connector 3 is preferably connected to the connector through an optical fiber 6.

Referring to FIG. 3, the first optical connector 2 includes a first ferrule 21, a first plug 22, and a first socket 23. The first socket 23 is mounted on the first optical path transmission portion 11. A ferrule 21 is sleeved in the first socket 23, the first plug 22 is mounted on the first socket 21, and a cavity between the first plug 22 and the first socket 23 is used to receive the first socket The core 21 and the optical fiber 6 pass through the first socket 23, the first ferrule 21, and the first plug 22 in this order, so as to ensure that the optical signal is successfully transmitted while ensuring that electromagnetic radiation interference is reduced.

Further, referring to FIG. 3, the first optical connector 2 further includes a first insertion ring 24, a first groove is provided on the optical module, and the first insertion ring 24 is wound around the first socket 23. And snap into the first groove to fix the first optical connector 2 in the optical module.

The structure of the second optical connector 3 is the same as that of the first optical connector 2. The second optical connector 3 includes a second ferrule, a second plug, and a second socket. The second socket is installed in On the connector, the second ferrule is sleeved in a second socket, the second plug is mounted on the second ferrule, and a cavity between the second plug and the second socket is used to receive a second The ferrule, the optical fiber 6 passes through the second socket, the second ferrule, and the second plug in order, which ensures that the electromagnetic signal interference is reduced while the optical signal is successfully transmitted.

Further, the second optical connector 3 further includes a second insertion ring, a second groove is provided on the optical module, and the second insertion ring is wound around the second socket and snaps into the second recess. In the groove, the second optical connector 3 is fixed in the optical module.

More specifically, referring to FIG. 2, the optical module transmits optical signals to and from external optical devices not only through the first optical path transmission section 11 but also to external optical devices through the second optical path transmission section 12; The optical structure further includes a third optical connector 4 and a fourth optical connector 5. The third optical connector 4 and the fourth optical connector 5 are both disposed on the second optical path transmission portion 12 of the optical module and the external connector. On the optical path through which the optical signal is transmitted, one end of the third optical connector 4 is connected to the second optical path transmission portion 12 through the optical fiber 6, and the other end is connected to one end of the fourth optical connector 5 through the optical fiber 6, and the fourth optical connection is The other end of the connector 5 is connected to the connector through an optical fiber 6, that is, the second optical path transmission part 12, the third optical connector 4, the fourth optical connector 5, and the connector are sequentially connected through the optical fiber 6. The third optical connector 4 and the fourth optical connector 5 prevent the second optical path transmission part 12 of the optical module from being directly exposed, thereby improving the anti-electromagnetic radiation performance of the optical module.

The third optical connector 4 has the same structure as the first optical connector 2. The third optical connector 4 includes a third ferrule, a third plug, and a third socket. The third socket is installed in On the second optical path transmission portion 12, the third ferrule is sleeved in a third socket, the third plug is mounted on the third ferrule, and a cavity between the third plug and the third socket is used. For accommodating a third ferrule, the optical fiber 6 passes through the third socket, the third ferrule, and the third plug in this order to ensure that the optical signal is successfully transmitted while ensuring that electromagnetic radiation interference is reduced.

Further, the third optical connector 4 further includes a third insertion ring, a third groove is provided on the optical module, and the third insertion ring is wound around the third socket and snaps into the third recess. In the groove, the third optical connector 4 is fixed in the optical module.

The fourth optical connector 5 has the same structure as the first optical connector 2. The fourth optical connector 5 includes a fourth ferrule, a fourth plug, and a fourth socket. The fourth socket is installed in On the connector, the fourth ferrule is sleeved in a fourth socket, the fourth plug is mounted on the fourth ferrule, and a cavity between the fourth plug and the fourth socket is used to receive a fourth The ferrule, the optical fiber 6 passes through the fourth socket, the fourth ferrule, and the fourth plug in this order, which ensures that the electromagnetic signal interference is reduced while the optical signal is successfully transmitted.

Further, the fourth optical connector 5 further includes a fourth insertion ring, a fourth groove is provided on the optical module, and the fourth insertion ring is wound around the fourth socket and snaps into the fourth recess. In the slot, the fourth optical connector 5 is fixed in the optical module.

Preferably, the first ferrule 21, the second ferrule, the third ferrule, and the fourth ferrule are ceramic ferrules. The ceramic ferrule is a small cylindrical ceramic tube fired from zirconium dioxide. The texture is hard, the color is white and delicate, and the precision of the finished product reaches sub-micron level, which can be used to achieve the physical docking of optical fibers.

Of course, if the optical module is provided with more optical path transmission sections and external optical devices for optical signal transmission, the optical structure may also be provided with more optical connectors, and the optical connectors are provided in the optical path transmission section and the optical devices. Between, thereby improving the anti-electromagnetic radiation performance of the optical module.

As shown in FIG. 2 and FIG. 3, the present invention further provides a preferred embodiment of an optical module with improved anti-electromagnetic radiation performance.

Specifically, referring to FIG. 2, an optical module for improving electromagnetic radiation resistance performance, the optical module is connected to a connector of an optical device, the optical module and the optical device mutually transmit optical signals; and the optical module is provided with The metal pull ring 7, the gap under the metal pull ring 7 is used to fix the connector of the optical device; the optical module includes a light emitting portion 11 and a light receiving portion 12, and the light emitting portion 11 is used to emit an optical signal. The light receiving section 12 is configured to receive an optical signal. A transmitting end of the light transmitting section 11 is provided with a first optical connector 2, and a receiving end of the light receiving section 12 is provided with a third optical connector 4. The module further includes a second optical connector 3 and a fourth optical connector 5 for connecting an external connector. The connector, the second optical connector 3, the first optical connector 2 and the light emitting part 11 are connected through an optical fiber 6. The connector, the fourth optical connector 5, the third optical connector 4, and the light receiving portion 12 are connected through an optical fiber 6. The first optical connector 2 and the second optical connector 3 prevent the light emitting portion 11 from being directly exposed, and the third optical connector 4 and the fourth optical connector 5 prevent the light receiving portion 12 from being directly exposed, thereby improving the optical module. Resistance to electromagnetic radiation.

Referring to FIG. 3, the first optical connector 2 includes a first ferrule 21, a first plug 22, and a first socket 23. The first socket 23 is mounted on the first optical path transmission portion 11. A ferrule 21 is sleeved in the first socket 23, the first plug 22 is mounted on the first ferrule 21, and the optical fiber 6 passes through the first socket 23, the first ferrule 21, and the first plug 22; The structure of the second optical connector 3 is the same as that of the first optical connector 2. The second optical connector 3 includes a second ferrule, a second plug, and a second socket. The second socket is mounted on the connector. The second ferrule is sleeved in a second socket, the second plug is mounted on the second ferrule, and the optical fiber 6 passes through the second socket, the second ferrule, and the second plug; the third optical connection The connector 4 has the same structure as the first optical connector 2. The third optical connector 4 includes a third ferrule, a third plug, and a third socket. The third socket is mounted on the second optical path transmission portion 12, The third ferrule is sleeved in a third socket, the third plug is installed on the third ferrule, and the optical fiber 6 passes through the third socket, the third ferrule, and the third plug; The structure of the fourth optical connector 5 is the same as that of the first optical connector 2. The fourth optical connector 5 includes a fourth ferrule, a fourth plug, and a fourth socket. The fourth socket is installed at the connector. In the above, the fourth ferrule is sleeved in a fourth socket, the fourth plug is installed on the fourth ferrule, and the optical fiber 6 passes through the fourth socket, the fourth ferrule, and the fourth plug.

Further, the first optical connector 2 further includes a first insertion ring 24, a first groove is provided on the optical module, and the first insertion ring 24 is wound around the first socket 23 and snaps in. In the first groove, the first optical connector 2 is fixed in the optical module; the second optical connector 3 further includes a second insertion ring, the optical module is provided with a second groove, and the second The insert ring is wound around the second socket and snaps into the second groove, so that the second optical connector 3 is fixed in the optical module; the third optical connector 4 further includes a third insert ring, and the optical A third groove is provided on the module, and the third plug ring is wound around the third socket and is snapped into the third groove, so that the third optical connector 4 is fixed in the optical module; The connector 5 further includes a fourth insertion ring. The optical module is provided with a fourth groove, and the fourth insertion ring is wound around the fourth socket and snaps into the fourth groove to make the fourth optical connection. The device 5 is fixed in the optical module.

In summary, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

An optical structure for improving electromagnetic radiation resistance performance, the optical structure is mounted on an optical module, and is characterized in that the optical structure includes a first optical connector and a second optical connector, and the first optical connector Both the first optical connector and the second optical connector are disposed on the optical path where the first optical path transmission part of the optical module and the external connector mutually transmit optical signals. One end of the first optical connector is connected to the first optical path transmission part through an optical fiber, and the other end It is connected to one end of a second optical connector through an optical fiber, and the other end of the second optical connector is connected to a connector.
The optical structure according to claim 1, wherein the first optical connector comprises a first ferrule, a first plug, and a first socket, and the first socket is mounted on the first optical path transmission portion, and The first ferrule is sleeved in a first socket, the first plug is mounted on the first ferrule, and the optical fiber passes through the first socket, the first ferrule, and the first plug.
The optical structure according to claim 2, wherein the first optical connector further comprises a first insertion ring, the optical module is provided with a first groove, and the first insertion ring is wound around the first A socket, and snap into the first groove.
The optical structure according to claim 1, wherein the second optical connector comprises a second ferrule, a second plug, and a second socket, the second socket is mounted on the connector, and the second The ferrule is sleeved in the second socket, the second plug is installed on the second ferrule, and the optical fiber passes through the second socket, the second ferrule, and the second plug.
The optical structure according to claim 4, wherein the second optical connector further comprises a second insertion ring, a second groove is provided on the optical module, and the second insertion ring is wound around the first insertion ring. Two sockets and snap into the second groove.
The optical structure according to claim 1, wherein the optical structure further comprises a third optical connector and a fourth optical connector, and the third optical connector and the fourth optical connector are both disposed on the optical module On the optical path where the second optical path transmission part and the external connector transmit optical signals to each other, one end of the third optical connector is connected to the second optical path transmission part through an optical fiber, and the other end is connected to one end of the fourth optical connector through an optical fiber. The other end of the fourth optical connector is connected to a connector through an optical fiber.
The optical structure according to claim 6, wherein the third optical connector comprises a third ferrule, a third plug, and a third socket, and the third socket is mounted on the second optical path transmission portion, so that The third ferrule is sleeved in a third socket, the third plug is installed on the third ferrule, and the optical fiber passes through the third socket, the third ferrule, and the third plug.
The optical structure according to claim 6, wherein the fourth optical connector comprises a fourth ferrule, a fourth plug, and a fourth socket, the fourth socket is mounted on the connector, and the fourth The ferrule is sleeved in the fourth socket, the fourth plug is installed on the fourth ferrule, and the optical fiber passes through the fourth socket, the fourth ferrule, and the fourth plug.
An optical module for improving anti-electromagnetic radiation performance, characterized in that: the optical module includes a light emitting part and a light receiving part, a transmitting end of the light emitting part is provided with a first optical connector, and the light receiving part receives A third optical connector is provided at the end. The optical module further includes a second optical connector and a fourth optical connector for connecting an external connector. The connector, the second optical connector, and the first optical connector. It is connected to the light transmitting part through an optical fiber, and the connector, the fourth optical connector, the third optical connector, and the light receiving part are connected through an optical fiber.
The optical module according to claim 1, wherein the first optical connector comprises a first ferrule, a first plug, and a first socket, and the first socket is mounted on the first optical path transmission portion, and The first ferrule is sleeved in a first socket, the first plug is mounted on the first ferrule, and the optical fiber passes through the first socket, the first ferrule, and the first plug; the second optical connector includes A second ferrule, a second plug, and a second socket, the second socket is mounted on the connector, the second ferrule is sleeved in the second socket, and the second plug is mounted on the second ferrule The optical fiber passes through the second socket, the second ferrule, and the second plug; the third optical connector includes a third ferrule, a third plug, and a third socket, and the third socket is installed in the second optical path transmission portion Above, the third ferrule is sleeved in a third socket, the third plug is installed on the third ferrule, and the optical fiber passes through the third socket, the third ferrule, and the third plug; the fourth light The connector includes a fourth ferrule, a fourth plug, and a fourth socket. The fourth socket is mounted on the connector, and the first The four ferrules are sleeved in the fourth socket, the fourth plug is installed on the fourth ferrule, and the optical fiber passes through the fourth socket, the fourth ferrule, and the fourth plug.