WO2024022018A1

WO2024022018A1 - Ferrule assembly, optical fiber connector, optical network device, and optical communication system

Info

Publication number: WO2024022018A1
Application number: PCT/CN2023/104387
Authority: WO
Inventors: 李唯搏; 张军; 李秀鹏
Original assignee: 华为技术有限公司
Priority date: 2022-07-28
Filing date: 2023-06-30
Publication date: 2024-02-01
Also published as: CN117471615A

Abstract

A ferrule assembly (201), an optical fiber connector (103), an optical network device (1002), and an optical communication system (1000). The ferrule assembly (201) comprises a first ferrule (21), a second ferrule (23), a ferrule tail bar component (25), and a light guide component (28). One end of the ferrule tail bar component (25) is fixedly connected to the first ferrule (21), the other end of the ferrule tail bar component (25) is fixedly connected to the second ferrule (23), and the ferrule tail bar component (25) comprises a light-transmitting region (252). The light guide component (28) passes through the ferrule tail bar component (25) and is used for emitting testing light, which has entered the light guide component (28), from the light-transmitting region (252). Users can directly determine whether a network port (1011) is idle on the basis of whether testing light is emitted out from the light-transmitting region (252).

Description

Ferrule components, optical fiber connectors, optical network equipment and optical communication systems

This application requests priority for the Chinese patent application submitted to the State Intellectual Property Office of China on July 28, 2022, with application number 202210899972.3 and the application name "Ferrule assembly, optical fiber connector, optical distribution network equipment and optical communication system" , and request the priority of the Chinese patent application submitted to the State Intellectual Property Office of China on December 7, 2022, with the application number 202211564366.2 and the application name "ferrule assembly, optical fiber connector, optical network equipment and optical communication system", The entire contents of which are incorporated herein by reference.

Technical field

This application relates to optical communication technology, and in particular to a ferrule assembly, optical fiber connector, optical network equipment and optical communication system.

Background technique

As the requirements for high-speed information transmission increase, optical fiber, as a high-speed information carrier, is being used more and more widely. Especially in the 5G era, the application of optical fiber lines is becoming more and more widespread, and the number of network ports is also growing rapidly at a geometric level. How to manage network port resources has become an urgent problem that needs to be solved.

Contents of the invention

The embodiment of the present application provides a ferrule assembly, an optical fiber connector, an optical network device and an optical communication system that facilitate resource management and maintenance of network ports.

In a first aspect, embodiments of the present application provide a ferrule assembly for use in optical fiber connectors, including: a first ferrule; a second ferrule; and a ferrule tail part. One end of the ferrule tail part is connected to the ferrule tail part. The first ferrule is fixedly connected, the other end of the ferrule tail handle component is fixedly connected to the second ferrule, the ferrule tail handle component includes a light-transmitting area; and a light guide component is inserted through the Ferrule tail handle part.

Users can directly determine whether the network port is idle by whether the detection light is transmitted through the light-transmitting area. For example, the network port connected to the optical fiber connector with detection light flashing is a non-idle port (non-idle resource), and the network port connected with the optical fiber connector that does not flash detection light is a non-idle port (non-idle resource). The network port connected to the optical fiber connector that detects light is an idle port (idle resource).

Visual management of resources is realized through light guide components and light-transmitting areas, making it convenient for users to build and maintain networks. Since the optical fiber connector is connected to the optical adapter, the optical adapter of the original network can be retained without replacement. This saves the cost and time of network construction and maintenance.

According to the first aspect, in a possible implementation, the light guide component includes an encapsulation body and an optical fiber core, the encapsulation body covers the optical fiber core, and the encapsulation body is inserted through the ferrule. In the tail handle component, the optical fiber core has a light-emitting part, and the light-emitting part is used to emit the detection light entering the light guide component to the light-transmitting area.

The encapsulation is used to protect the fiber optic core. Most or all of the detection light that enters the light guide component is emitted from the light-emitting part, so that the brightness of the detection light emitted from the light-emitting part is greater, thereby improving the light guide effect of the light guide component.

According to the first aspect, in a possible implementation, the optical fiber core further includes a connection portion connected to the light-emitting portion, and the diameter of the connection portion is greater than or smaller than the diameter of the light-emitting portion.

The light guide member forms a light-emitting portion by optical fiber tapering processing. Optical fiber tapering refers to melting the optical fiber at high temperature, then drawing it thin, subjecting it to local glue corrosion treatment, and finally encapsulating it. The light-emitting part is the processed position on the core of the optical fiber. Guide fiber core clear When the main communication light passes, non-communication light (detection light) is derived from the light-emitting part (processed position).

According to the first aspect, in a possible implementation, the light-emitting part has a curved structure.

The light guide component undergoes optical fiber bending processing to form a light emitting part. The light-emitting part has a curved structure, and the detection light is emitted from the light-emitting part to achieve a light guiding effect. Optical fiber bending can take advantage of the fiber core sensitivity. By locally excessively bending the fiber core, the light at the processed location can more easily escape from the coating, thus achieving a light-guiding effect.

According to the first aspect, in a possible implementation, the optical fiber core includes a first optical fiber core segment and a second optical fiber core segment, and an end surface of the first optical fiber core segment is in contact with the second optical fiber core segment. One end surface of the fiber optic core segment is spliced to form the light-emitting part. The light-emitting part is formed by optical fiber connection.

According to the first aspect, in a possible implementation, the light guide component is provided with a light-emitting part, and the light-emitting part includes a fiber grating.

The light guide component undergoes fiber grating processing to form a light emitting part. The light-emitting part includes a fiber grating. Fiber gratings can utilize the axial periodic changes and phase differences in the refractive index of the optical fiber to modulate the processing effect of high refractive efficiency when the detection light passes through.

According to the first aspect, in a possible implementation, the ferrule assembly further includes a first fiber core and a second fiber core, and the first fiber core penetrates the first ferrule and the ferrule. core tail shank component, the second fiber core penetrates the second ferrule and the ferrule shank component; the first fiber core is connected to the light guide component, and the second fiber core is connected to the light guide component. The light guide component is connected, the light guide component is located between the first fiber core and the second fiber core, and the detection light enters the light guide through the first fiber core or the second fiber core. part.

The first fiber core and the second fiber core are optically connected through the light guide component. The first fiber core and the second fiber core are pre-installed in the ferrule assembly to improve the assembly accuracy of the ferrule assembly and the optical fiber connector. It also facilitates on-site installation of the optical fiber connector and improves network construction efficiency.

According to the first aspect, in a possible implementation manner, the first fiber core, the light guide component, and the second fiber core are provided integrally, or the first fiber core and the second fiber Core split setting.

According to the first aspect, in a possible implementation manner, the ferrule tail handle component includes a first ferrule tail handle and a second ferrule tail handle arranged along the axial direction of the ferrule assembly, and the The first ferrule is fixed to an end of the first ferrule tail handle away from the second ferrule tail handle, and the second ferrule is fixed to the second ferrule tail handle away from the first ferrule tail. One end of the handle.

The ferrule tail handle component includes a first ferrule tail handle and a second ferrule tail handle that are separately arranged to facilitate the manufacturing and assembly of the ferrule assembly.

According to the first aspect, in a possible implementation, the first ferrule tail handle is provided with a first channel, the second ferrule tail handle is provided with a second channel, and the light-transmitting area is provided on the On the first ferrule tail handle and/or the second ferrule tail handle, the light guide component is received in the first channel and/or the second channel.

According to the first aspect, in a possible implementation, an end of the second ferrule tail handle away from the second ferrule is fixedly sleeved on an end of the first ferrule tail handle away from the first ferrule. , a limiting boss is protruding from the outer wall of the first ferrule tail handle, and one end of the second ferrule tail handle away from the second ferrule is in contact with the limiting boss.

According to the first aspect, in a possible implementation, the ferrule tail handle component further includes a connector, and the connector is connected to one of the first ferrule tail handle and the second ferrule tail handle. At least one connection is provided, the light guide component is passed through the connecting piece, and the light-transmitting area is provided on the connecting piece.

In a second aspect, embodiments of the present application provide an optical fiber connector, including the ferrule assembly according to the first aspect and a housing unit that is sleeved outside the ferrule assembly. The housing unit is provided with a third A light guide area, the first light guide area is used to guide the detection light emitted from the light-transmitting area of the ferrule assembly; the first ferrule position of the ferrule assembly At the first end of the housing unit, the second ferrule of the ferrule assembly is located at the second end of the housing unit.

According to the second aspect, in a possible implementation, the housing unit includes a base, a frame sleeve and a shell, the base is sleeved on the ferrule tail handle component of the ferrule assembly, and the The first light guide area is provided on the base, the frame sleeve is fixedly sleeved on the base and the ferrule tail handle component, the shell is fixedly sleeved on the base, and the The housing is provided with a second light guide area at a position corresponding to the first light guide area on the base, and the detection light emitted from the first light guide area is emitted out of the housing through the second light guide area.

According to the second aspect, in a possible implementation, the housing unit includes a base and a frame sleeve, the base is sleeved on the ferrule tail handle component of the ferrule assembly, and the first The light guide area is provided on the base, one end of the frame sleeve is connected to the base, at least part of the first ferrule is located in the frame sleeve, and at least part of the second ferrule is located in the frame sleeve. The base is located in one end of the base away from the frame sleeve.

According to the second aspect, in a possible implementation, the base includes a base body and a light-transmitting member, the base body is sleeved on the ferrule tail handle component, and the base body and the frame The sleeve is fixed, the first light guide area is a hollow area, the light-transmitting component is fixedly received in the first light-guiding area, and the detection light emitted from the light-transmitting area is emitted through the light-transmitting component.

According to the second aspect, in a possible implementation, the base includes a first mounting part and a second mounting part, and the first mounting part is provided at an end of the base close to the first ferrule. , the first mounting part and the second mounting part are connected and arranged along the axial direction of the optical fiber connector, and the frame sleeve is connected to the first mounting part.

According to the second aspect, in a possible implementation, the optical fiber connector further includes a sleeve and a ferrule, the sleeve is fixedly sleeved on the second ferrule, and the ferrule is sleeved on the second ferrule. In addition to the second ferrule and the sleeve, the ferrule is engaged with the second mounting part.

The card sleeve can be an SC-type adapter card sleeve. The first interface can correspond to the SC-type connector interface, and the second interface can correspond to the SC-type adapter interface, that is, the optical fiber connector can be used in indoor scenarios, and the base can be an indoor extension base.

According to the second aspect, in a possible implementation, the optical fiber connector includes an optical connector assembly, and the optical connector assembly includes a first ferrule, a second ferrule, a base and a frame sleeve, and the The number of optical connector components is at least one. The ferrule includes a main body and an interface portion protruding from the main body. The interface portion includes at least one second interface. Each optical connector component is inserted through corresponding to one of the second interfaces.

The connector is connected to one, two or more optical connector components through a ferrule to achieve optical transmission of at least one optical channel, which is beneficial to simplifying the structure of the optical connector.

The optical fiber connector may be an LC type optical fiber connector.

According to the second aspect, in a possible implementation, the base further includes a third mounting part, the third mounting part is fixedly connected to the first mounting part, and the first mounting part is received in the In the third mounting part, the frame sleeve is received in the third mounting part.

According to the second aspect, in a possible implementation, the optical fiber connector further includes a sleeve, the sleeve is sleeved on the second ferrule and is received in the second mounting part; The base also includes an anti-separation boss, which is protruding on the inner wall of an end of the second mounting part away from the first ferrule to prevent the sleeve from being separated from the base.

In a third aspect, embodiments of the present application provide a ferrule assembly for use in optical fiber connectors. The ferrule assembly includes a first ferrule, a second ferrule, a ferrule tail part and a light guide part. One end of the ferrule tail handle component is fixedly connected to the first ferrule, and the other end of the ferrule tail handle component is fixedly connected to the second ferrule. The ferrule tail handle component includes a receiving channel and a light-transmitting area. The light guide component is received in the accommodation channel and used to emit the detection light after entering the light guide component from the light-transmitting area.

In addition, the light guide component is arranged in the optical fiber connector, and no fiber jumpers are performed in the optical fiber connector. This shortens the transmission distance of the detection light, reduces light loss, and improves the light guide effect of the light guide component.

According to the first aspect, in a possible implementation, the light guide component includes a package body and a fiber guide core, the package body covers the fiber guide core, and the package body is fixedly received in the accommodation channel. In the optical fiber core, the optical fiber core has a light-emitting part, and the detection light entering the light-guiding component is emitted to the light-transmitting area through the light-emitting part.

According to the third aspect, in a possible implementation, the optical fiber core further includes a connection part connected to the light-emitting part, and the diameter of the connection part is greater than or smaller than the diameter of the light-emitting part.

The light guide member forms a light-emitting portion by optical fiber tapering processing. Optical fiber tapering refers to melting the optical fiber at high temperature, then drawing it thin, subjecting it to local glue corrosion treatment, and finally encapsulating it. The light-emitting part is the processed position on the core of the optical fiber. When the core of the guide fiber is exposed to light, while the main communication light passes through, non-communication light (detection light) is derived from the light-emitting part (processed position).

According to the third aspect, in a possible implementation, the light-emitting part has a curved structure.

According to the third aspect, in a possible implementation, the light-emitting part includes a fiber grating structure.

According to the third aspect, in a possible implementation, the ferrule assembly includes a first fiber core and a second fiber core, and the first fiber core penetrates the first ferrule and the receiving channel. , the second fiber core penetrates the second ferrule and the receiving channel; the light guide component is located between the first fiber core and the second fiber core, the first fiber core The second fiber core is optically docked with the light guide component, and the detection light enters the light guide component through the first fiber core or the second fiber core. The first fiber core and the second fiber core are optically connected through the light guide component. The first fiber core and the second fiber core are pre-installed in the ferrule assembly to improve the assembly accuracy of the ferrule assembly and the optical fiber connector. It also facilitates on-site installation of the optical fiber connector and improves network construction efficiency.

According to the third aspect, in a possible implementation, the ferrule tail handle component further includes a first ferrule tail handle and a second ferrule tail handle that are fixedly connected, and the first ferrule is fixed on the The end of the first ferrule tail handle away from the second ferrule tail handle, the second ferrule is fixed to the end of the second ferrule tail handle away from the first ferrule tail handle, so The receiving channel includes a first channel and a second channel, the first channel is provided in the tail handle of the first ferrule, the second channel is provided in the tail handle of the second ferrule, and the The light-transmitting area is provided on the first ferrule tail handle and/or the second ferrule tail handle, and the light guide component is received in the first channel and/or the second channel.

According to the third aspect, in a possible implementation manner, an end of the second ferrule tail handle away from the second ferrule is fixedly sleeved on an end of the first ferrule tail handle away from the first ferrule. , a limiting boss is protruding from the outer wall of the first ferrule tail handle, and one end of the second ferrule tail handle away from the second ferrule is in contact with the limiting boss.

The limiting boss is used to resist the second ferrule tail handle to limit the axial movement of the second ferrule tail handle along the ferrule assembly, thereby improving the stability and reliability of the ferrule assembly.

In a fourth aspect, the present application also provides an optical fiber connector, which includes the ferrule assembly according to the third aspect and a housing unit that is sleeved outside the ferrule assembly. The housing unit is provided with a light guide. area, the light guide area is used to guide the detection light emitted from the light-transmitting area of the ferrule assembly, the housing unit also includes a first interface and a second interface arranged oppositely, the ferrule assembly The first ferrule is located at the first interface, and the second ferrule of the ferrule assembly is located at the second interface.

Because the light guide component of the optical fiber connector emits light, the status of the network port can be determined, which facilitates user resource management and maintenance of the network port.

According to the fourth aspect, in a possible implementation, the housing unit includes a base, a frame and a shell, the light guide area includes a first light guide area and a second light guide area, and the base It is sleeved on the ferrule tail part of the ferrule assembly, the first light guide area is provided on the base, and the frame sleeve is fixedly sleeved on the base and the ferrule tail handle. On the component, the housing is fixedly sleeved on the base, the first interface and the second interface are both provided on the housing, and the housing corresponds to the first light guide area on the base. The second light guide area is provided, and the detection light emitted from the first light guide area is emitted out of the housing through the second light guide area.

According to the fourth aspect, in a possible implementation, the housing unit further includes an elastic member, and the elastic member is elastically resisted between the ferrule tail handle component and the base.

According to the fourth aspect, in a possible implementation, the base includes a base body and a light-transmitting member, the base body is sleeved on the ferrule tail handle component, and the base body and the frame The sleeve is fixed, the elastic member elastically resists between the ferrule tail handle part and the base body, the first light guide area is a hollow area, and the light-transmitting member is fixedly received in the first In the light guide area, the detection light emitted from the light-transmitting area is emitted through the light-transmitting member. The light-transmitting component can provide certain protection to the light-guiding component of the ferrule component while guiding the detection light emitted from the light-guiding component.

According to the fourth aspect, in a possible implementation, the inner wall of the frame sleeve is provided with a first latching portion, and the outer wall of the base is provided with a second latching portion. The second engaging portion is engaged with the second engaging portion, so that the frame sleeve is fixedly connected to the base.

The frame sleeve is engaged with the first mounting part to limit the position of the first ferrule.

According to the fourth aspect, in a possible implementation, the optical fiber connector further includes a sleeve and a ferrule, the sleeve is fixedly sleeved on the second ferrule, and the ferrule is sleeved on the second ferrule. In addition to the second ferrule and the sleeve, the ferrule is engaged with the second mounting part.

According to the fourth aspect, in a possible implementation, the base further includes a third mounting part, the third mounting part is fixedly connected to the first mounting part, and the first mounting part is received in the In the third mounting part, the frame sleeve is received in the third mounting part, and the housing is connected to the third mounting part.

The optical fiber connector may be an outdoor optical fiber connector used in outdoor application scenarios. The first interface of the housing corresponds to an ST-type pre-connection interface, and the second interface of the housing corresponds to an ST-type pre-connection adapter interface.

In a fifth aspect, embodiments of the present application provide an optical network device, including an optical splitter, an optical adapter, and an optical fiber connector according to the second or third aspect. The optical splitter is provided with a network port, and the optical adapter Installed on the network port, the first interface of the optical fiber connector is docked with the optical adapter to realize the optical connection between the first ferrule and the network port.

Visual management of resources is realized through the light guide components and light-transmitting areas of optical fiber connectors, making it convenient for users to build and maintain networks. Since the optical fiber connector is connected to the optical adapter, the optical adapter of the original network can be retained without replacement. This saves the cost and time of network construction and maintenance.

In a sixth aspect, embodiments of the present application provide an optical communication system, including an optical line terminal and the optical network device according to the third aspect, and the optical line terminal and the optical network device are connected through optical fibers.

Description of drawings

Figure 1 is a schematic architectural diagram of an optical communication system provided by an embodiment of the present application;

Figure 2a is a three-dimensional assembly diagram of the optical fiber connector provided by the first embodiment of the present application;

Figure 2b is a three-dimensional exploded schematic view of the optical fiber connector shown in Figure 2a;

Figure 3 is an axial cross-sectional view of the optical fiber connector shown in Figure 2a;

Figure 4 is an axial cross-sectional view of a ferrule assembly provided by an embodiment of the present application;

Figure 5a is a schematic diagram of a light guide component formed by optical fiber tapering processing according to an embodiment of the present application;

Figure 5b is a schematic diagram of a light guide component formed by optical fiber bending according to an embodiment of the present application;

Figure 5c is a schematic diagram of a light guide component formed by fiber grating processing according to an embodiment of the present application;

Figure 5d is a schematic diagram of the optical fiber core formed by optical fiber splicing processing according to an embodiment of the present application;

Figure 6 is a three-dimensional schematic view of the base of the optical fiber connector;

Figure 7 is a schematic three-dimensional view of a partial area of the body of the base and the light-transmitting component;

Figure 8a is a three-dimensional schematic view of a light-transmitting component provided by an embodiment of the present application;

Figure 8b is a schematic diagram of a flat light-emitting surface of the light-transmitting component provided by an embodiment of the present application;

Figure 8c is a schematic diagram of the light-emitting surface of the light-transmitting component provided by an embodiment of the present application being a concave surface;

Figure 9 is a three-dimensional assembly diagram of the optical fiber connector with the outer shell removed;

Figure 10 is a partially exploded schematic diagram of an optical fiber connector;

Figure 11 is an axial cross-sectional view of the optical fiber connector provided by the second embodiment of the present application;

Figure 12 is a three-dimensional schematic view of the base;

Figure 13 is a schematic view of the base shown in Figure 12 from another perspective;

Figure 14 is another perspective view of the base shown in Figure 12;

Figure 15 is a schematic diagram of the first interface of the optical fiber connector shown in Figure 11;

Figure 16 is a schematic diagram of the second interface of the optical fiber connector shown in Figure 11;

Figure 17 is a three-dimensional assembly view of the optical fiber connector provided by the third embodiment of the present application;

Figure 18 is an axial cross-sectional view of the optical fiber connector shown in Figure 17;

Figure 19 is a three-dimensional exploded schematic view of the optical fiber connector shown in Figure 17;

Figure 20 is a partial assembly schematic diagram of the optical fiber connector shown in Figure 17;

Figure 21 is a schematic three-dimensional assembly diagram of an optical fiber connector provided by a possible implementation of the present application.

Detailed ways

Please refer to Figure 1. An embodiment of the present application provides an optical communication system 1000, including an optical line terminal (optical line terminal, OLT) 1001, an optical network device 1002, and an optical network terminal (optical network terminal, ONT) 1003. In this implementation, the optical network device 1002 is an optical distribution network (optical distribution network, ODN) device. The optical line terminal 1001 and the optical network device 1002 are connected through optical fibers. The optical line terminal 1001 can be used as an intermediary between other networks and the optical network terminal 1003. The optical line terminal 1001 can forward data received from other networks to the optical network terminal 1003, and forward data received from the optical network terminal 1003 to other networks.

The optical network device 1002 is used for data distribution between the optical line terminal 1001 and the optical network terminal 1003. The optical network device 1002 includes an optical splitter 101, a plurality of optical adapters 102 and a plurality of optical fiber connectors 103. The optical splitter 101 can split one optical signal into multiple channels. Optical splitter 101 is a passive device, also known as optical splitter, used for coupling, branching and distribution of optical signals, and is often built into supporting equipment of ODN networks.

The optical network terminal 1003 is connected to the optical splitter 101, and the optical splitter 101 can receive the detection light output from the optical network terminal 1003. Optical splitter 101 includes a plurality of network ports 1011. Each optical adapter 102 is connected to one network port 1011. One end of each optical fiber connector 103 is connected to an optical adapter 102 . That is, the optical adapter 102 is connected between a network port 1011 and an optical fiber connector 103 . The optical network equipment 1002 may also include other necessary or unnecessary components such as optical cables, couplers, distributors, etc., which will not be described in detail here.

It can be understood that this application does not limit the number of optical adapters 102, and this application does not limit the number of optical fiber connectors 103. For example, the number of optical adapters 102 may be one, and the number of optical fiber connectors 103 may be one.

In some embodiments of the present application, the optical fiber connector 103 is an indoor optical fiber connector that can be used in indoor application scenarios, and the optical fiber connector 103 is a male-female optical fiber connector, that is, an optical fiber connector. 103 is an optical fiber connector with integrated male and female ends.

It can be understood that this application does not limit the application of the optical fiber connector 103 to the scenario of docking with the optical adapter 102. It can also be applied in other optical connection scenarios. For example, the optical fiber connector 103 can also be an outdoor optical fiber connector.

Please refer to FIG. 2a, FIG. 2b and FIG. 3. An optical fiber connector 103 provided in the first embodiment of the present application includes a ferrule assembly 201 and a housing unit 203 sleeved on the ferrule assembly 201. The ferrule assembly 201 is used for inserting fiber cores. The housing unit 203 is used to protect the ferrule assembly 201 . One end of the housing unit 203 is docked with the optical adapter 102 to realize the optical connection between the ferrule assembly 201 and the network port 1011 .

Referring to FIG. 4 , the ferrule assembly 201 includes a first ferrule 21 , a second ferrule 23 , a ferrule tail part 25 , a first fiber core 26 , a second fiber core 27 and a light guide part 28 . One end of the ferrule tail handle part 25 is fixedly connected to the first ferrule 21 , and the other end of the ferrule tail handle part 25 is fixedly connected to the second ferrule 23 . That is, the ferrule tail part 25 is fixedly connected between the first ferrule 21 and the second ferrule 23 . The ferrule tail handle component 25 includes a receiving channel 251 and a light-transmitting area 252. The receiving channel 251 is used to receive the first fiber core 26 , the second fiber core 27 and the light guide component 28 . The first fiber core 26 is passed through the first ferrule 21 and the receiving channel 251. The part of the first fiber core 26 located in the first ferrule 21 is used for optical connection with the network port 1011. The first fiber core 26 is far away from the first ferrule. One end of the core 21 is used for optical docking with the light guide component 28 . The second fiber core 27 is inserted between the second ferrule 23 and the receiving channel. Inside Road 251. One end of the second fiber core 27 away from the second ferrule 23 is used for optical docking with the light guide component 28 . The light guide component 28 is at least partially accommodated in the receiving channel 251 , that is, the light guide component 28 is inserted into the ferrule tail part 25 , and is used for detecting the light guide component 28 entering through the first fiber core 26 or the second fiber core 27 . Light emerges from the light-transmitting area 252.

In some embodiments of the present application, the first ferrule 21 is the male end of the optical fiber connector 103 at the end of the optical fiber connector 103 , and the second ferrule 23 is the female end of the optical fiber connector 103 at the end of the optical fiber connector 103 . end.

In a conventional technology, the adapter of the original network (i.e., the existing network) is replaced with a light-transmitting adapter. The detection light emitted from the ferrule position of the optical fiber connector inserted into the light-transmitting adapter can pass through the light-transmitting adapter. reveal. On the one hand, since the adapter of the original network needs to be replaced, the adapter of the original network needs to be disassembled and the light-transmitting adapter needs to be assembled. This affects work efficiency and requires higher costs. In addition, due to the optical loss at the ferrule docking point, fiber jumper transmission distance, detection optical power, light guide efficiency, etc., the light transmission or light guide effect of the light-transparent adapter is poor, which will affect the user's safety during resource management and maintenance. judge.

In this application, the detection light can be output through the optical network terminal 1003, and the detection light enters the optical fiber connector 103 through the optical splitter 101, that is, the detection light can be output to the optical fiber connector 103 through the optical network terminal 1003. To facilitate observation, the detection light can be selected The human eye is more sensitive to red light. It can be understood that this application does not limit the color of the detection light. The detection light may also be invisible light, and the optical communication system 1000 may further include a light detection device. The light detection device is used to detect the detection light to realize automatic monitoring of each network port. It can be understood that in other implementations, if the optical network terminal 1003 is not powered on, the detection light can be output to the optical fiber connector 103 through a handheld device.

In this application, after the red detection light is emitted from the optical network terminal 1003, the user can directly determine whether the network port 1011 is idle by whether the light-transmitting area 252 transmits the detection light, for example, by connecting to the optical fiber connector 103 flashing the detection light. The network port is a non-idle port (non-idle resource), and the network port connected to the optical fiber connector 103 that does not flash the detection light is an idle port (idle resource).

Visual management of resources is realized through the light guide component 28 and the light-transmitting area 252, which facilitates users' network construction and network maintenance. Since the optical fiber connector 103 is connected to the optical adapter 102, the optical adapter 102 of the original network can be retained without replacement. This saves the cost and time of network construction and maintenance.

In addition, the light guide component 28 is provided in the optical fiber connector 103, and there is no need to perform optical fiber jumpers in the optical fiber connector 103. In this way, the transmission distance of the detection light is shortened, the optical loss is reduced, and the light guide of the optical fiber connector 103 is improved. Effect.

The ferrule tail part 25 includes a first ferrule tail 254 and a second ferrule tail 256 that are fixedly connected. The first ferrule 21 is fixed to an end of the first ferrule tail handle 254 away from the second ferrule tail handle 256 , and the second ferrule 23 is fixed to an end of the second ferrule tail handle 256 away from the first ferrule tail handle 254 . The receiving channel 251 includes a first channel 2512 and a second channel 2514 that are connected to each other. The first channel 2512 is provided in the first ferrule tail 254 , and the second channel 2514 is provided in the second ferrule tail 256 . The light-transmitting area 252 is provided on the first ferrule tail 254 , and the light guide component 28 is received in the first channel 2512 . The ferrule tail handle component 25 includes a first ferrule tail handle 254 and a second ferrule tail handle 256 that are separately arranged to facilitate the manufacturing and assembly of the ferrule assembly 201 . The first ferrule tail handle 254 and the second ferrule tail handle 256 can be connected and arranged through snapping, gluing, interference fit, etc.

The first fiber core 26 and the second fiber core 27 are both the core structure of the optical fiber after removing the cladding. The first fiber core 26 is inserted into the first channel 2512, and the second fiber core 27 is inserted into the second channel 2514. In the embodiment of the present application, the first fiber core 26 is pre-installed in the first channel 2512 of the first ferrule 21 and the first ferrule tail 254, and the second fiber core 27 is pre-installed in the second ferrule 23 and the second ferrule shank 254. in the second channel 2514 of the ferrule tail handle 256 to improve the assembly accuracy of the ferrule assembly 201 and the optical fiber connector 103 and to facilitate the on-site installation of the optical fiber connector 103. In some embodiments of the present application, the first fiber core 26 and the second fiber core 27 may be different locations on the core of the same optical fiber, that is, the first fiber core 26 and the second fiber core 27 are integrally provided. In some embodiments of the present application, the first fiber core 26 and the second fiber core 27 can also be provided separately. In other words, the first fiber core 26 and the second fiber core 27 can be arranged separately. The two fiber cores 27 are two independent optical fiber cores.

In other embodiments of the present application, the light guide component 28 may also be located in the second channel 2514, or a part of the light guide component 28 may be located in the first channel 2512 and a part of the light guide component 28 may be located in the second channel 2514. The light-transmitting area 252 can be provided on the first ferrule tail handle 254 and/or the second ferrule tail handle 256. The position of the light-transmitting area 252 is not limited in this application. The detection light emitted from the light guide component 28 can pass through the light-transmitting area 252. The light area 252 can be emitted.

The light-transmitting area 252 on the first ferrule tail handle 254 may be a hollow area. For example, the light-transmitting area 252 may be a light guide groove to guide the detection light. In other embodiments of the present application, the material of the first ferrule tail handle 254 in the light-transmitting area 252 can be made of light-transmitting material. The light-transmitting area 252 only needs to be able to transmit light. The molding of the first ferrule 21 and the first ferrule tail handle 254 is completed by plastic secondary injection molding or metal crimping. It can be understood that this application does not limit the molding of the first ferrule 21 and the first ferrule tail handle 254, as long as the first ferrule 21 and the first ferrule tail handle 254 can be fixed.

The outer wall of the first ferrule tail handle 254 is provided with a resisting boss 2542 and a limiting boss 2544. The resisting boss 2542 is provided on the outer wall of the first ferrule tail handle 254 close to one end of the first ferrule 21 for resisting the elastic member 40 . The limiting boss 2544 is provided on the outer wall of the end of the first ferrule tail handle 254 close to the second ferrule 23, and is used to resist the second ferrule tail handle 256 to limit the second ferrule tail handle 256 along the ferrule. The axial movement of the assembly 201 improves the stability and reliability of the ferrule assembly 201 .

The second ferrule 23 and the second ferrule tail handle 256 can be formed by plastic secondary injection molding or metal crimping. It can be understood that the present application does not limit the molding process of the second ferrule 23 and the second ferrule tail handle 256, as long as the second ferrule 23 and the second ferrule tail handle 256 can be fixed. The second ferrule tail handle 256 is fixedly sleeved on the first ferrule tail handle 254 and resists the limiting boss 2544. The second ferrule tail handle 256 is sealed to the end of the first ferrule tail handle 254 away from the first ferrule 21 through glue dispensing or interference fit riveting. It can be understood that this application does not limit the fixing method between the first ferrule tail handle 254 and the second ferrule tail handle 256. It is sufficient that the first ferrule tail handle 254 and the second ferrule tail handle 256 are fixed.

It can be understood that the light guide component 28 can be received in the first channel 2512 and/or the second channel 2514.

It can be understood that the first ferrule tail handle 254 and the second ferrule tail handle 256 can be integrally formed.

In other embodiments of the present application, the first fiber core 26 and the second fiber core 27 can be omitted, as long as the light can enter the light guide component 28 from the first ferrule 21 or the second ferrule 23 .

In some embodiments of the present application, the light guide component 28 can be encapsulated into the receiving channel 251 through glue dispensing. The light guide component 28 includes a package 282 and a fiber guide core 284 . The package 282 encloses the optical fiber core 284 . The package body 282 is fixedly received in the first channel 2512. The package 282 is used to protect the fiber optic core 284 . The optical fiber core 284 has a light-emitting portion 2842 for emitting the detection light entering the light-guiding component 28 to the light-transmitting area 252 . In this embodiment, the light guide component 28 can be processed by optical fiber tapering, optical fiber bending, optical fiber splicing and other processes, so that most or all of the detection light is concentrated on the light-emitting part 2842 and emitted, so that the brightness of the detection light emitted from the light-emitting part 2842 is relatively high. large, thus improving the light guiding effect. It can be understood that the light-emitting portion 2842 of the light guide member 28 can emit the detection light from the light-transmitting area 252 .

In one possible implementation, as shown in FIG. 5a , the light guide component 28 undergoes optical fiber tapering processing to form the light-emitting part 2842. The optical fiber core 284 also includes a connecting portion 2844 connected to the light-emitting portion 2842. The diameter of the connecting portion 2844 is larger than the diameter of the light-emitting portion 2842. Optical fiber tapering refers to melting the optical fiber at high temperature, then drawing it thin, subjecting it to local glue corrosion treatment, and finally encapsulating it. The light emitting part 2842 is a processed position on the optical fiber core 284 . When the optical fiber core 284 is light-operated, the main communication light passes and at the same time, the non-communication light (detection light) is derived from the light-emitting part 2842 (processed position). In some embodiments of the present application, the diameter of the connecting part 2844 may be smaller than the diameter of the light-emitting part 2842.

In one possible implementation, as shown in FIG. 5b , the light guide component 28 undergoes optical fiber bending processing to form a light-emitting part 2842. The light-emitting part 2842 has a curved structure, and the detection light is emitted from the light-emitting part 2842 to achieve a light guiding effect. Optical fiber bending can take advantage of fiber sensitivity. By locally excessively bending the optical fiber, the light at the treated location can more easily escape from the coating, thus achieving a light-guiding effect.

In a possible implementation, please refer to FIG. 5c , the package body of the light guide component 28 can be omitted, and the light guide component 28 undergoes fiber grating processing to form the light-emitting part 2842. The light emitting part 2842 includes a fiber grating. Fiber gratings can utilize the axial periodic changes and phase differences in the refractive index of the optical fiber to modulate the processing effect of high refractive efficiency when the detection light passes through.

In optical fiber tapering, optical fiber bending, and optical fiber grating scenarios, the optical fiber core 284, the first optical core 26, and the second optical core 27 can be integrally provided, that is, the optical fiber core 284, the first optical core 26, and the second optical core 27 It can be different parts of the same optical fiber. In some embodiments of the present application, the optical fiber core 284, the first fiber core 26, and the second fiber core 27 can also be arranged separately. The optical fiber core 284 is optically docked with one end of the first fiber core 26, and the optical fiber core 284 is optically connected to one end of the first fiber core 26. One end of the second fiber core 27 is optically docked to realize optical transmission.

In a possible implementation, please refer to Figure 5d. The fiber guide core 284 includes a first fiber guide core section 2846 and a second fiber guide core section 2848. The first fiber guide core section 2846 and the second fiber guide core section 2848 are encapsulated by package body 282. One end of the first optical fiber core segment 2846 is optically docked with one end of the second optical fiber core segment 2848 to form the light-emitting part 2842. The first optical fiber core section 2846 and the second optical fiber core section 2848 are connected by optical fibers to form the light-emitting part 2842. The end of the first optical fiber core 2846 away from the second optical fiber core section 2848 is connected to the first optical fiber core 26, and the end of the second optical fiber core section 2848 away from the first optical fiber core section 2846 is connected to the second optical fiber core 27. In other words, In other words, the light guide component 28 is formed by optical fiber splicing. The first optical fiber core segment 2846 may be provided separately from the first optical fiber core 26. An end of the first optical fiber core segment 2846 away from the second optical fiber core 2848 is optically docked with the first optical fiber core 26 to achieve optical transmission. The second optical fiber core section 2848 can be provided separately from the second optical fiber core 27 . An end of the second optical fiber core section 2848 away from the first optical fiber core section 2846 is optically docked with the second optical fiber core 27 to achieve optical transmission.

By forming the light-emitting part 2842 after local processing on the light guide component 28, the detection light from the optical network terminal 1003 can be derived from the light-emitting part 2842, that is, the characteristics of the optical fiber are used to provide a stronger and better light-emitting effect to obtain the network port. status. Since the optical fiber connector 103 and the light guide component 28 are integrated, the number of components of the optical network equipment 1002 and the optical communication system 1000 is reduced, and the maintenance efficiency of the optical network equipment 1002 and the optical communication system 1000 is improved.

It can be understood that this application does not limit the manufacturing process of the light guide component 28, and this application does not limit the process of disposing the light guide component 28 in the accommodation channel 251, as long as the light guide component 28 can export the detection light.

Please refer to FIG. 2 b and FIG. 3 again. The housing unit 203 includes a base 30 , an elastic member 40 , a frame sleeve 50 , a sleeve 60 , a ferrule 70 and a shell 80 . The base 30 is sleeved on the first ferrule tail handle 254 and the second ferrule tail handle 256, and is used to maintain the connection between the elastic member 40 and the ferrule assembly 201. The elastic member 40 elastically resists between the first ferrule tail handle 254 of the ferrule assembly 201 and the base 30, and is used to provide a pre-tightening force when the ferrule assembly 201 and the optical adapter 102 are optically docked to improve the optical fiber connection. The accuracy and stability of the optical docking of the device 103. The frame sleeve 50 is placed outside the ferrule assembly 201 and the base 30 . The frame sleeve 50 is fixed to the base 30 to fix the base 30 on the ferrule assembly 201 . The sleeve 60 is set on the second ferrule 23 to protect the second ferrule 23 . The ferrule 70 is placed outside the sleeve 60 and fixed with the base 30 . The ferrule 70 is used for clipping with other optical connection devices. The housing 80 is fixedly mounted on the base 30 , the frame sleeve 50 and the ferrule 70 , and is used for docking with the optical adapter 102 and/or other optical connection devices.

Please refer to FIG. 2 b , FIG. 3 and FIG. 6 in combination. The base 30 includes a base 32 and a light-transmitting member 34 provided on the base 32 . The light-transmitting member 34 is used to transmit the detection light emitted from the light-transmitting area 252 . The base 32 includes a first mounting part 320 and a second mounting part 321 arranged along the axial direction of the optical fiber connector 103 . The first mounting portion 320 is generally cylindrical and is used for connecting with the first ferrule tail 254 . It can be understood that the shape of the first mounting part 320 is not limited in this application. The first mounting part 320 is sleeved on the first ferrule tail handle 254 , and the first ferrule 21 exposes one end of the first mounting part 320 away from the second ferrule 23 . A resisting structure 3201 (as shown in FIG. 3 ) is formed on the inner wall of the first mounting part 320 for resisting the elastic member 40 . The elastic member 40 is at least partially received in the first mounting part 320 , and the elastic member 40 elastically resists between the resisting boss 2542 and the resisting structure 3201 .

The second mounting portion 321 is generally rectangular parallelepiped-shaped and is used for connecting with the first ferrule tail 254 and the second ferrule tail 256 . It can be understood that the shape of the second mounting part 321 is not limited in this application. The second mounting part 321 is sleeved on the first ferrule tail handle 254 and the second ferrule tail handle 256 . The second ferrule 23 exposes one end of the second mounting portion 321 away from the first ferrule 21 . The second mounting part 321 is provided with a first light guide area 322 for accommodating the light-transmitting member 34 to guide the detection light emitted from the light guide member 28 .

Please refer to Figure 7. In some embodiments of the present application, the first light guide area 322 is a step hole. The first light guide area 322 includes a first light guide section 3222 and a second light guide section 3224. The first light guide section 3222 The aperture is smaller than the aperture of the second light guide section 3224 to form a step surface 3226. The first light guide section 3222 is provided on a side of the first light guide area 322 close to the ferrule tail handle component 25. The step surface 3226 of the first light guide area 322 can position the light-transmitting member 34 to facilitate the assembly of the light-transmitting member 34 on the base 30 . The outline surface of the first light guide area 322 may be waist-shaped, circular, square, star-shaped, etc., and the outline shape of the first light guide area 322 is not limited in this application.

Please refer to FIG. 7 and FIG. 8 a. The light-transmitting member 34 includes a first light-transmitting part 342 and a second light-transmitting part 344 that are fixedly connected. The first light-transmitting part 342 is received in the first light-guiding section 3222, and the second light-transmitting part 344 is received in the second light-guiding section 3224. The second light-transmitting part 344 is in contact with the step surface 3226. In some embodiments of the present application, the light-transmitting component 34 can be installed on the stepped surface 3226 through interference fit or glue dispensing to improve the protection of the light guide component 28 . The outline surface of the light-transmitting member 34 may be waist-shaped, circular, square, star-shaped, etc., and the outline shape of the light-transmitting member 34 is not limited in this application.

The side of the first light-transmitting part 342 facing away from the second light-transmitting part 344 includes a light-incident surface 346 , and the side of the second light-transmitting part 344 facing away from the first light-transmitting part 342 includes a light-emitting surface 348 . The light incident surface 346 is substantially planar. The light-emitting surface 348 is a convex surface protruding in a direction away from the light-incident surface 346 to collect light, thereby increasing the light-emitting effect of the detection light of the optical fiber connector 103 . The detection light is incident from the light incident surface 346 and then emitted from the light exit surface 348 . The light-transmitting member 34 can protect the light-guiding component 28 while guiding light, and can reduce dust and other impurities from entering the ferrule assembly 201 . It can be understood that the present application does not limit the shape of the light incident surface 346 and the light exit surface 348. For example, the light exit surface 348 may be a plane (as shown in FIG. 8b), or the light exit surface 348 may be concave toward the light incident surface 346. The concave surface (as shown in Figure 8c), etc.

It can be understood that the first light guide area 322 does not need to be a step hole, as long as the first light guide area 322 can be installed with the light-transmitting member 34 .

It can be understood that the light-transmitting member 34 can be omitted, and the material of the base 30 in the first light guide area 322 is a light-transmitting material.

Please refer to Figure 2b, Figure 3, and Figure 9. The frame sleeve 50 is set outside the base 30, and the axial length of the frame sleeve 50 is smaller than the axial length of the base 30. The end of the first ferrule 21 away from the second ferrule 23 is exposed from the frame sleeve 50 . The second mounting part 321 exposes the frame cover 50 . A limiting structure 52 (as shown in FIG. 3 ) is provided on the inner wall of the frame sleeve 50 . The limiting structure 52 resists the end of the first ferrule tail handle 254 away from the second ferrule tail handle 256 . The base 32 also includes a first holding part 326 (as shown in FIGS. 3 and 9 ) provided on the outer wall of the first mounting part 320 near the end of the first ferrule 21 . The frame sleeve 50 is provided with a second holding part 326 on the inner wall thereof. Holding portion 54 (shown in Figures 3 and 9). The first latching part 326 is latchingly connected to the second latching part 54 so that the frame sleeve 50 and the base 30 are fixed together to limit the position of the first ferrule 21 . In some embodiments of the present application, the first holding part 326 is a boss protruding on the outer wall of the base 32 , and the second holding part 54 is a groove (such as a through groove) recessed on the inner wall of the frame sleeve 50 ), the boss is clamped in the groove.

It can be understood that the first holding portion 326 can be a groove recessed on the outer wall of the base 30 , and the second holding portion 54 can be a boss protruding on the inner wall of the frame sleeve 50 .

It can be understood that this application is not limited to the connection between the frame cover 50 and the base 30 through snap-fitting. The frame cover 50 and the base 30 can be connected through other connection methods. For example, the frame cover 50 and the base 30 can also be connected. Connected by fasteners.

In some embodiments of the present application, the sleeve 60 is a ceramic sleeve. The sleeve 60 is sleeved outside the second ferrule 23 , and the sleeve 60 is spaced apart from the second ferrule tail handle 256 .

In some embodiments of the present application, the ferrule 70 is an SC (standard connector) adapter ferrule. The ferrule 70 includes a main body 72 and an elastic arm 74 protruding from an outer wall of the main body 72 . The main body 72 is sleeved outside the second ferrule 23 and the sleeve 60 . The elastic arm 74 is used to clamp the optical connection device to improve the stability of the optical connection device when it is docked with the second ferrule 23 .

In some embodiments of the present application, the base 32 further includes a third holding portion 328 (as shown in FIG. 3 ) provided on the second mounting portion 321 , and the third holding portion 328 is provided on the outer wall of the base 32 , the ferrule 70 also includes a fourth latching part 75 provided on the outer wall of the main body 72 , and the third latching part 328 is latchingly connected to the fourth latching part 75 so that the ferrule 70 and the base 30 are fixed together. The third holding part 328 is a groove recessed on the inner wall of the base 30 , and the fourth holding part 75 is a boss protruding on the outer wall of the main body 72 .

It can be understood that the third holding part 328 can be a boss protruding on the inner wall of the base 32, and the fourth holding part 75 can be a groove recessed on the outer wall of the main body 72, and the boss is fastened in the groove. Inside.

It can be understood that this application is not limited to the connection between the ferrule 70 and the base 30 through snap-in connection. The ferrule 70 and the base 30 can be connected through other connection methods. For example, the ferrule 70 and the base 30 can also be connected. Connected by fasteners.

The ferrule assembly 201, the base 30, the elastic member 40, the frame sleeve 50, the sleeve 60 and the ferrule 70 are all contained in the housing 80. Please refer to FIG. 2 b , FIG. 3 and FIG. 10 . The housing 80 includes a first interface 82 and a second interface 84 arranged oppositely. In some embodiments of the present application, the first interface 82 is a male interface, the first ferrule 21 is a male ferrule, the first ferrule tail 254 is a male ferrule tail, and the second interface 84 is a female end. Interface, the second ferrule 23 is the female end ferrule, and the second ferrule tail handle 256 is the female end ferrule tail handle. In some embodiments of the present application, the first interface 82 corresponds to an SC-type connector interface, and the second interface 84 corresponds to an SC-type adapter interface.

When the first interface 82 and the optical adapter 102 are plugged together, the first ferrule 21 and the network port 1011 are optically connected. The second interface 84 can be plugged into the optical connection device.

In other embodiments of the present application, the present application does not limit the interface type of the first interface 82 , the present application does not limit the interface type of the second interface 84 , the present application does not limit the first interface 82 to be a public interface, and the present application does not limit the second interface 82 . The interface of the interface 84 is a female interface, and the first interface 82 can be connected to the network port 1011 or other optical connection devices.

The housing 80 is also provided with a second light guide area 86 . The second light guide area 86 is used to transmit the detection light emitted from the light-transmitting member 34 to output the detection light to the outside of the housing 80 . The second light guide area 86 may be a hollow area. In other embodiments of the present application, the material of the second light guide area 86 of the housing 80 may also be a light-transmitting material.

In some embodiments of the present application, a first limiting portion 56 is provided on the outer wall of the frame sleeve 50 , and a second limiting portion 88 is provided on the inner wall of the first interface 82 of the housing 80 . The second limiting portion 88 is in contact with the first limiting portion. 56 is snap-connected to fix the shell 80 on the frame sleeve 50 . The first limiting part 56 is generally a boss structure protruding on the outer wall of the frame sleeve 50 , and the second limiting part 88 is generally a groove structure being recessed on the inner wall of the housing 80 . During assembly, the housing 80 is placed outside the frame sleeve 50 , and the second restricting portion 88 of the first interface 82 and the second restricting portion 88 of the frame sleeve 50 form a snap-in limit. It can be understood that this application does not limit the structures of the first restricting part 56 and the second restricting part 88. For example, the first restricting part 56 may also be a groove structure recessed on the outer wall of the frame sleeve 50, and the second restricting part 88 It can be a boss structure protruding on the inner wall of the housing 80 .

It can be understood that this application does not limit the structure of the housing unit 203. The housing unit 203 is set on the ferrule assembly 201. The housing unit 203 is provided with a light guide area, and the light guide area is used to remove light from the transmission of the ferrule assembly. The detection light emitted from the light area 252 is derived. The housing unit 203 also includes a first interface 82 and a second interface 84 arranged oppositely. The first ferrule 21 of the ferrule assembly 201 is located at the first interface 82, and the second ferrule 23 of the ferrule assembly 201 is located at the second interface 84. .

Please refer to Figure 11. A second embodiment of the present application provides an optical fiber connector 103b. The structure of the optical fiber connector 103b provided by the second embodiment is substantially the same as that of the optical fiber connector 103 provided by the first embodiment. The difference is at least that: The structure of the seat 30, the connection method between the base 30 and the frame sleeve 50, etc.

Please refer to FIG. 12 and FIG. 13 , the base body 32 of the base 30 includes a first mounting part 320 , a second mounting part 321 and a third mounting part 323 . The first mounting part 320 and the second mounting part 321 are connected and arranged along the axial direction of the optical fiber connector 103b. The first light guide area 322 is provided on the second mounting part 321. The third mounting part 323 is fixedly connected to the first mounting part 320 . The housing 80 is connected to the third mounting part 323 . The first mounting part 320 is received in the third mounting part 323 , and the frame sleeve 50 is received in the third mounting part 323 and connected to the base 32 .

The base body 32 also includes a first holding portion 326 provided on the outer wall of one end of the first mounting portion 320 close to the first ferrule 21 , and a second holding portion 54 is provided on the inner wall of the frame sleeve 50 . The first latching part 326 is latchingly connected to the second latching part 54 so that the frame sleeve 50 and the base 30 are fixed together to limit the position of the first ferrule 21 . The elastic member 40 elastically resists between the first retaining portion 326 and the outer wall of the first ferrule tail handle 254 . In some embodiments of the present application, the first holding part 326 is a boss protruding on the outer wall of the base 32 , and the second holding part 54 is a groove (such as a through groove) recessed on the inner wall of the frame sleeve 50 ), the boss is clamped in the groove.

The sleeve 60 is received in the second mounting part 321 . The base body 32 also includes an anti-detachment boss 3213 (as shown in FIGS. 11 and 14 ) protruding from the inner wall of the end of the second mounting part 321 away from the first ferrule 21 to prevent the sleeve 60 from being separated from the base body 32 .

In this embodiment, the optical fiber connector 103b can be an outdoor optical fiber connector that can be used in outdoor application scenarios. The first interface 82 of the housing 80 corresponds to an ST-type pre-connection interface (as shown in Figure 15). The housing 80 The second interface 84 corresponds to a similar ST-type pre-connected adapter interface (as shown in Figure 16). The shell 80 is inserted into the base 30 from the rear end to complete the installation, which is consistent with the existing technical solution.

In summary, the interface structure of the male and female optical fiber connectors matched with the light-guiding base 30 can be an indoor or outdoor pre-connection method.

Referring to Figures 17, 18 and 19, a third embodiment of the present application provides an optical fiber connector 103d, which includes a ferrule assembly and a housing unit sleeved on the ferrule assembly. In this embodiment, the optical fiber connector 103d is an LC (lucent connector) optical connector.

The ferrule assembly includes a first ferrule 21 , a second ferrule 23 , a ferrule tail part 25 and a light guide part 28 . The ferrule tail handle component 25 is provided with a light-transmitting area 252 . One end of the ferrule tail handle part 25 is fixedly connected to the first ferrule 21 , and the other end of the ferrule tail handle part 25 is fixedly connected to the second ferrule 23 . That is, the ferrule tail part 25 is fixedly connected between the first ferrule 21 and the second ferrule 23 . The ferrule tail handle component 25 is provided with a light-transmitting area 252 . The light guide component 28 is received in the ferrule tail handle component 25 and partially penetrates the first ferrule 21 and the second ferrule 23 to emit detection light from the light-transmitting area 252 .

The ferrule tail part 25 includes a first ferrule tail 254, a second ferrule tail 256 and a connector 258. The first ferrule tail 254 and the second ferrule tail 256 are along the axial direction of the optical fiber connector 103c. set up. The first ferrule 21 is fixed to an end of the first ferrule tail handle 254 away from the second ferrule tail handle 256 , and the second ferrule 23 is fixed to an end of the second ferrule tail handle 256 away from the first ferrule tail handle 254 . The connecting piece 258 is connected with the second ferrule tail 256 . The light-transmitting area 252 is provided on the connecting member 258 . In some embodiments of the present application, the connector 258 is fixedly inserted into the second ferrule tail handle 256 for receiving the light guide component 28 .

The light guide component 28 includes a package 282 and a fiber optic core 284 . The package body 282 is received in the connector 258 , and the package body 282 covers part of the optical fiber core 284 . The package 282 is used to protect the fiber optic core 284 . The specific structure and manufacturing method of the optical fiber core 284 can be referred to the first embodiment of the present application, and will not be described in detail here. The optical fiber core 284 penetrates the first ferrule 21 , the connector 258 and the second ferrule 23 . Since the light guide component 28 is received in the connector 258, the connector 258 can protect the light guide component 28 to reduce damage to the light guide component 28 during assembly, disassembly, transportation, etc. When assembling, The light guide component 28 and the connector 258 can be assembled together first, and then the optical fiber core 284 of the light guide component 28 can be inserted into the second ferrule tail handle 256, and then the connector 258 can be assembled into the second ferrule tail handle. 256, this facilitates the assembly of the optical fiber connector 103d. Since the optical fibers located in the first ferrule 21, the connector 258 and the second ferrule 23 are located on the same optical fiber, it is helpful to simplify the assembly steps of the ferrule assembly 201 and to reduce light loss.

The housing unit includes a base 30, an elastic member 40, a frame sleeve 50, a sleeve 60 and a ferrule 70. The base 30 is sleeved on the first ferrule tail handle 254 , the second ferrule tail handle 256 and the connector 258 , and is used to keep the elastic member 40 connected to the ferrule assembly 201 . The elastic member 40 elastically resists between the first ferrule tail 254 and the connector 258, and is used to provide a preload force when the ferrule assembly 201 is optically docked with the optical adapter, so as to improve the accuracy of the optical docking of the optical fiber connector 103c. and stability. The frame sleeve 50 is sleeved on the first ferrule tail handle 254 and the first ferrule 21 . The frame sleeve 50 is connected to the base 30 to fix the base 30 on the ferrule assembly 201 . The sleeve 60 is set on the second ferrule 23 to protect the second ferrule 23 .

In this embodiment, the base 30 is an LC rear housing. The base 30 includes a base 32 and a light-transmitting member 34 provided on the base 32 . The light-transmitting member 34 is used to transmit the detection light emitted from the light-transmitting area 252 . The base body 32 includes a first mounting part 320 and a second mounting part 321 arranged along the axial direction of the optical fiber connector 103c. The first mounting part 320 is sleeved on the first ferrule tail 254 and the connector 258 . The first ferrule tail 254 partially exposes an end of the first mounting part 320 away from the second ferrule 23 .

The second mounting portion 321 is sleeved on the connecting piece 258 and the second ferrule tail handle 256 . The second mounting part 321 is provided with a first light guide area 322 for accommodating the light-transmitting member 34 to guide the detection light emitted from the light guide member 28 . In this embodiment, the first light guide area 322 is a through hole. The light-transmitting member 34 is received in the first light guide area 322 .

In other embodiments of the present application, the light-transmitting member 34 may be omitted, and the first light guide area 322 is a light-transmitting area. It can be understood that the base 30 can be a transparent piece.

In some embodiments of the present application, a limiting boss 2544 is protruding from the outer wall of the first ferrule tail handle 254 , and the elastic member 40 is resisted between the limiting boss 2544 and the connecting piece 258 .

The frame sleeve 50 is an LC front shell. The frame sleeve 50 is sleeved outside the first ferrule 21 and the first ferrule tail handle 254 . The frame sleeve 50 is connected to the first mounting part 320 . The frame cover 50 is provided with a first interface 82 . In this embodiment, one end of the first ferrule 21 away from the second ferrule 23 is exposed from the frame cover 50 . A limiting structure 52 (as shown in FIG. 18 ) is provided on the inner wall of the frame sleeve 50 . The limiting structure 52 resists the end of the first ferrule tail handle 254 away from the second ferrule tail handle 256 . The base 32 also includes a first latching part 326 (as shown in FIG. 18 ) provided on the outer wall of one end of the first mounting part 320 close to the first ferrule 21 , and a second latching part 326 is provided on the inner wall of the frame sleeve 50 54 (as shown in Figure 18). The first latching part 326 is latchingly connected to the second latching part 54 so that the frame sleeve 50 and the base 30 are fixed together to limit the position of the first ferrule 21 . In some embodiments of the present application, the first holding part 326 is a boss protruding on the outer wall of the base 32 , and the second holding part 54 is a groove (such as a through groove) recessed on the inner wall of the frame sleeve 50 ), the boss is clamped in the groove.

The ferrule 70 is sleeved on the second ferrule 23 and connected with the base 30 . The ferrule 70 is used for clipping with other optical connection devices. In some embodiments of the present application, the ferrule 70 is an LC-type adapter ferrule. The ferrule 70 includes a main body 72 and an interface portion 76 protruding from the outer wall of the main body 72 . The main body 72 is sleeved outside the second ferrule 23 and the sleeve 60 . The interface portion 76 is provided with a second interface 84 for docking with the optical connection device.

In some embodiments of the present application, the base 32 further includes a third holding portion 328 (such as As shown in Figure 18), the third holding part 328 is provided on the outer wall of the base 32. The ferrule 70 also includes a fourth holding part 75 provided on the outer wall of the main body 72. The third holding part 328 and the fourth holding part 75 are arranged on the outer wall of the main body 72. The holding portion 75 is clamped and connected, so that the ferrule 70 and the base 30 are fixed together. The third holding part 328 is a groove recessed on the inner wall of the base 30 , and the fourth holding part 75 is a boss protruding from one end of the main body 72 where the interface part 76 is exposed.

In some embodiments of the present application, the first interface 82 is a male interface, the first ferrule 21 is a male ferrule, the first ferrule tail 254 is a male ferrule tail, and the second interface 84 is a female end. Interface, the second ferrule 23 is the female end ferrule, and the second ferrule tail handle 256 is the female end ferrule tail handle. In some embodiments of the present application, the first interface 82 corresponds to an LC-type connector interface, and the second interface 84 corresponds to an LC-type adapter interface.

In other embodiments of the present application, the present application does not limit the interface type of the first interface 82 , the present application does not limit the interface type of the second interface 84 , the present application does not limit the first interface 82 to be a public interface, and the present application does not limit the second interface 82 . The interface of the interface 84 is a female interface, and the first interface 82 can be connected to a network port or other optical connection device.

The embodiment of this application is a visual male and female connector LC/double LC type application. In this embodiment, the first ferrule 21 and the first ferrule tail handle 254 can be connected through metal riveting or plastic injection molding. The tail of the first ferrule tail handle 254 is provided with an elastic member 40, and the connecting member 258 is used to adjust the elasticity. Piece 40 limit. The connecting piece 258 can be separated or integrated with the second ferrule tail handle 256 . The second ferrule tail handle 256 and the second ferrule 23 can be connected through metal riveting or plastic injection molding. The frame cover 50 is inserted into the above-mentioned component from the end (front end) where the first ferrule 21 is located to complete the snap connection. This locking is accomplished through the slot on the frame sleeve 50 and the boss on the base 30 . The ferrule 70 is engaged with the groove on the base 30 through the boss. The position of the light guide area of the base 30 corresponds to the light emitting position of the light guide component 28 . Likewise, the above embodiment can be applied to double LC type visual male and female connectors.

As shown in FIG. 20 , the ferrule assembly, base 30 , elastic member 40 , frame sleeve 50 , and sleeve 60 form an optical connector assembly 300 , and the sleeve 60 of the optical connector assembly 300 is inserted into the main body 72 . In a possible implementation, as shown in FIG. 21 , the number of optical connector assemblies in the optical fiber connector is two, the number of main bodies 72 of the ferrule 70 is two, and the interface part 76 includes two second Interface 84, each body 72 is correspondingly connected to a second interface 84. The sleeve 60 of each connector body is correspondingly inserted into a main body 72, and each second interface 84 can be plugged into an optical connection device to realize two optical channels for optical transmission through a ferrule 70. It is beneficial to simplify the structure of the optical fiber connector 103d. It can be understood that the number of optical connector assemblies can be multiple, the number of main bodies 72 of the ferrule 70 can be multiple, and the number of second interfaces 84 of the ferrule 70 can be multiple, so as to realize multiple optical channels for optical transmission.

In the case of no conflict, the first embodiment and the third embodiment may be combined with each other.

It should be understood that expressions such as "comprises" and "may include" that may be used in this application indicate the presence of disclosed functions, operations, or constituent elements and do not limit one or more additional functions, Operations and components. In this application, terms such as "comprising" and/or "having" may be construed to mean specific characteristics, numbers, operations, constituent elements, parts, or combinations thereof, but shall not be construed to mean one or more other characteristics. The existence or possibility of addition of , number, operation, constituent elements, parts or their combination is excluded.

Furthermore, as used in this application, the expression "and/or" includes any and all combinations of the associated listed words. For example, the expression "A and/or B" may include A, may include B, or may include both A and B.

In this application, expressions including ordinal numbers such as "first" and "second" may modify each element. However, Such elements are not limited by the above expression. For example, the above expressions do not limit the order and/or importance of the elements. The above expressions are only used to distinguish one element from other elements. For example, a first user equipment and a second user equipment indicate different user equipments, although both the first user equipment and the second user equipment are user equipments. Similarly, a first element may be termed a second element, and similarly a second element may be termed a first element, without departing from the scope of the application.

When a component is referred to as being "connected" or "connected" to another component, it will be understood that not only is the component directly connected or connected to the other component, but also that another component may be present between the component and the other component . On the other hand, when an element is referred to as being "directly connected" or "directly connected to" another element, it is understood that there are no intervening elements present. The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A ferrule assembly (201) applied to an optical fiber connector (103), which is characterized by including:

The first ferrule (21);

The second ferrule (23);

Ferrule tail handle component (25), one end of the ferrule tail handle component (25) is fixedly connected to the first ferrule (21), and the other end of the ferrule tail handle component (25) is connected to the first ferrule handle component (25). The second ferrule (23) is fixedly connected, and the ferrule tail part (25) includes a light-transmitting area (252); and

The light guide component (28) is passed through the ferrule tail handle component (25).
The ferrule assembly (201) according to claim 1, characterized in that the light guide component (28) includes an encapsulation body (282) and a fiber guide core (284), and the encapsulation body (282) covers the entire The optical fiber core (284) is described, and the package (282) is inserted into the ferrule tail part (25). The optical fiber core (284) has a light-emitting part (2842), and the light-emitting part (2842) 2842) is used to emit the light entering the light guide component (28) to the light-transmitting area (252).
The ferrule assembly (201) according to claim 2, characterized in that the optical fiber core (284) further includes a connecting portion (2844) connected to the light-emitting portion (2842), and the connecting portion (2844) 2844) is larger or smaller than the diameter of the light-emitting part (2842).
The ferrule assembly (201) according to claim 2, characterized in that the light-emitting part (2842) has a curved structure.
The ferrule assembly (201) according to claim 2, wherein the optical fiber core (284) includes a first optical fiber core section (2846) and a second optical fiber core section (2848), and the third optical fiber core section (2848) An end surface of a fiber guide core segment (2846) is optically docked with an end surface of the second fiber guide core segment (2848) to form the light emitting part (2842).
The ferrule assembly (201) according to claim 1, characterized in that the light guide component (28) is provided with a light-emitting part (2842), and the light-emitting part (2842) includes a fiber grating.
The ferrule assembly (201) according to any one of claims 1 to 6, characterized in that the ferrule assembly (201) further includes a first fiber core (26) and a second fiber core (27), so The first fiber core (26) penetrates the first ferrule (21) and the ferrule tail part (25), and the second fiber core (27) penetrates the second ferrule (23) and the ferrule tail handle component (25);

The first fiber core (26) is connected to the light guide component (28), the second fiber core (27) is connected to the light guide component (28), and the light guide component (28) is located at the between the first fiber core (26) and the second fiber core (27).
The ferrule assembly (201) according to claim 7, characterized in that the first fiber core (26), the light guide component (28), and the second fiber core (27) are integrally provided,

Alternatively, the first fiber core (26) and the second fiber core (27) are provided separately.
The ferrule assembly (201) according to claim 7, characterized in that the ferrule tail shank component (25) includes first ferrule shanks arranged along the axial direction of the ferrule assembly (201). (254) and the second ferrule tail handle (256), the first ferrule (21) is fixed on the end of the first ferrule tail handle (254) away from the second ferrule tail handle (256) , the second ferrule (23) is fixed to an end of the second ferrule tail handle (256) away from the first ferrule tail handle (254).
The ferrule assembly (201) according to claim 9, characterized in that the first ferrule tail handle (254) is provided with a first channel (2512), and the second ferrule tail handle (256) is provided with a first channel (2512). There is a second channel (2514), the light-transmitting area (252) is provided on the first ferrule tail handle (254) and/or the second ferrule tail handle (256), and the light guide component (28) is received in the first channel (2512) and/or within the second channel (2514).
The ferrule assembly (201) according to claim 10, characterized in that, one end of the second ferrule tail handle (256) away from the second ferrule (23) is fixedly sleeved on the first ferrule tail. One end of the handle (254) is away from the first ferrule (21). A limiting boss (2544) is protruding from the outer wall of the first ferrule tail handle (254). The second ferrule tail handle (256) ) The end far away from the second ferrule (23) is in contact with the limiting boss (2544).
The ferrule assembly (201) according to claim 10, characterized in that the ferrule tail handle component (25) further includes a connecting piece (258), and the connecting piece (258) is connected to the first ferrule. At least one of the tail handle (254) and the second ferrule tail handle (256) is connected and arranged, the light guide component (28) is passed through the connector (258), and the light-transmitting area ( 252) is provided on the connecting piece (258).
An optical fiber connector (103), characterized by comprising the ferrule assembly (201) according to any one of claims 1-12 and a housing unit (201) sheathed outside the ferrule assembly (201) 203), the housing unit (203) is provided with a first light guide area (322), the first light guide area (322) is used to remove the light-transmitting area (322) from the ferrule assembly (201) 252) The emitted light is exported;

The first ferrule (21) of the ferrule assembly (201) is located at the first end of the housing unit (203), and the second ferrule (23) of the ferrule assembly (201) is located at the shell unit (203). The second end of the body unit (203).
The optical fiber connector (103) according to claim 13, characterized in that the housing unit (203) includes a base (30), a frame sleeve (50) and a shell (80), and the base (30) ) is sleeved on the ferrule tail handle component (25) of the ferrule assembly (201), the first light guide area (322) is provided on the base (30), and the frame sleeve (50 ) is fixedly sleeved on the base (30) and the ferrule tail handle component (25), and the shell (80) is fixedly sleeved on the base (30). The shell (80) A second light guide area (86) is provided at a position corresponding to the first light guide area (322) on the base (30), and the light emitted from the first light guide area (322) passes through the second light guide area (322). The light guide area (86) emerges outside the housing (80).
The optical fiber connector (103) according to claim 13, characterized in that the housing unit (203) includes a base (30) and a frame sleeve (50), and the base (30) is sleeved on the On the ferrule assembly (201), the first light guide area (322) is provided on the base (30), and one end of the frame sleeve (50) is connected to the base (30). At least part of the first ferrule (21) is located in the frame cover (50), and at least part of the second ferrule (23) is located on the base (30) away from the frame cover (50). inside one end.
The optical fiber connector (103) according to claim 14 or 15, characterized in that the base (30) includes a base body (32) and a light-transmitting member (34), and the base body (32) is sleeved On the ferrule tail part (25), the base (32) is fixed to the frame sleeve (50), the first light guide area (322) is a hollow area, and the light-transmitting component (34) is fixedly accommodated in the first light guide area (322), and the light emitted from the light-transmitting area (252) is emitted through the light-transmitting member (34).
The optical fiber connector (103) according to claim 14 or 15, characterized in that the base (30) includes a first mounting part (320) and a second mounting part (321), and the first mounting part (320) is provided at one end of the base (30) close to the first ferrule (21), and the first mounting portion (320) and the second mounting portion (321) are located along the optical fiber connector. (103) is axially connected, and the frame sleeve (50) is connected to the first mounting part (320).
The optical fiber connector (103) according to claim 17, characterized in that the optical fiber connector (103) further includes a sleeve (60) and a ferrule (70), and the sleeve (60) is fixedly mounted On the second ferrule (23), the The ferrule (70) is sleeved outside the second ferrule (23) and the sleeve (60), and the ferrule (70) is engaged with the second mounting part (321).
The optical fiber connector (103) according to claim 18, characterized in that the ferrule (70) includes a main body (72) and an interface portion (76) protruding on the main body (72), and the The interface part (76) includes at least one second interface (84), the number of the main body (72) is at least one, and each of the main bodies (72) is inserted into the corresponding second interface (84). .
The optical fiber connector (103) according to claim 17, characterized in that the base (30) further includes a third mounting part (323), and the third mounting part (323) is connected to the first mounting part. part (320) is fixedly connected, the first mounting part (320) is received in the third mounting part (323), and the frame sleeve (50) is received in the third mounting part (323).
The optical fiber connector (103) according to claim 20, characterized in that the optical fiber connector (103) further includes a sleeve (60), and the sleeve (60) is sleeved on the second ferrule. (23) and is accommodated in the second mounting part (321); the base (30) also includes an anti-removal boss (3213), and the anti-removal boss (3213) is protruding on the second mounting part (321). The two mounting parts (321) are on the inner wall of one end away from the first ferrule (21).
An optical network device (1002), characterized by comprising an optical splitter (101), an optical adapter (102) and an optical fiber connector (103) according to any one of claims 13-21, the optical splitter (102) 101) is provided with a network port (1011), the optical adapter (102) is installed on the network port (1011), and one end of the optical fiber connector (103) is docked with the optical adapter (102) to achieve the desired Optical connection between the optical fiber connector and the network port (1011).
An optical communication system (1000), characterized by comprising an optical line terminal (1001) and an optical network device (1002) according to claim 22, the optical line terminal (1001) and the optical network device (1001) 1002) are connected through optical fiber.