Rj interface and signal transmission method

Abstract

The application provides an RJ interface and a signal transmission method. The RJ interface comprises a shell and an optoelectronic chip. A first side of the shell has a first opening which is an access opening of a cable comprising at least one optical fiber channel. A second side of the shell has a second opening. Contacts of the optoelectronic chip are located in the second opening. The contacts are used for transmitting and receiving electrical signals. The optoelectronic chip is located inside the shell and fixed to the shell. The optoelectronic chip is used for converting received optical signals into electrical signals and / or transmitting optical signals according to received electrical signals. In the technical scheme, the transmitting and receiving functions of optical signals are integrated in the RJ interface, the interface is optically implemented, the terminal equipment can be directly connected to an optical interconnection network, the use of ONU boxes and various interfaces and cables can be avoided, the unification of interfaces and cables of the optical interconnection network can be implemented, the optical interconnection network is simplified and lightened, and the complexity of optical interconnection network connection is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and more particularly, to an RJ interface and a signal transmission method. BACKGROUND

[0002] With the continuous development of information technology, the digital transformation of various industries is rapidly progressing. Optical communication technology is the key to supporting the digital transformation of various industries. The full optical network is expanding in three dimensions of industrial optical network, office optical network and home optical network. The full optical network in each dimension has an urgent demand for the optical transceiver (OFT) function of the terminal.

[0003] At the end of the existing optical interconnection network, the optical signal is transmitted to various terminal devices via the optical line terminal (OLT) and the optical distribution network (ODN), and the optical signal and the electrical signal need to be converted to each other to complete the optical-electrical interconnection with various terminal devices. Since the terminal device does not generally have an optical transceiver function, the optical-electrical signal conversion needs to be performed in the optical network unit (ONU) box, and then the ONU box connects various specifications of interfaces and cables to transmit signals to various terminal devices.

[0004] Based on the above technical solution, the ONU box needs to adapt to different interfaces and function combinations of various terminal devices, such as various models of RJ interfaces and various specifications of universal serial bus (USB) interfaces, etc. At the same time, the ONU box also needs to adapt to various use environments and requirements, such as space and weight restrictions. Therefore, a large number of ONU boxes, as well as various cables and interfaces, are required in the optical interconnection network, which increases the complexity of the optical interconnection network connection. SUMMARY

[0005] The present application provides an RJ interface and a signal transmission method, which helps to reduce the complexity of optical network connection.

[0006] In a first aspect, the present application provides an RJ interface, which comprises: a shell and an optoelectronic chip; wherein the first side of the shell has a first opening, which is an access port for a cable comprising at least one optical fiber channel, and the second side of the shell has a second opening, and the contact of the optoelectronic chip is located in the second opening, and the contact is used for transceiving electrical signals; the optoelectronic chip is located inside the shell and fixed with the shell, and the optoelectronic chip is used for converting the received optical signal into an electrical signal and / or transmitting an optical signal according to the received electrical signal.

[0007] The RJ interface in the embodiments of the present application can also be referred to as an optical RJ (O-RJ) interface, a Registered Jack interface, a crystal head, an RJ connector, or an RJ plug, etc.

[0008] In the above technical solution, the functions of transmitting and receiving optical signals are integrated in the RJ interface, the interface is optically implemented, the terminal device can be directly connected to the optical interconnection network, the use of ONU boxes and various interfaces and cables can be avoided, the interfaces and cables of the optical interconnection network can be unified, and the optical interconnection network can be simplified and lightened, which helps to reduce the complexity of the optical interconnection network connection.

[0009] In combination with the first aspect, in a possible implementation manner, the interface further includes an optical element, the optical element is located inside the shell and fixed to the shell, the optoelectronic chip is connected to the cable through the first opening and the optical element, the optical element forms at least one optical link, the number of the at least one optical fiber channel is less than or equal to the number of the at least one optical link, and the optical link is used to perform at least one of the following processes on the optical signal from the cable or the optoelectronic chip: collimation, reflection, and focusing.

[0010] In the above technical solution, the RJ interface can perform collimation, reflection, focusing, etc. on the received optical signal through the optical element, which is conducive to improving the utilization rate of the optical signal.

[0011] In combination with the first aspect or any possible implementation manner thereof, in another possible implementation manner, the shell and the optical element are made of the same material.

[0012] Optionally, if the RJ interface further includes a support fixing structure, the support fixing structure can also be made of the same material as the shell and the optical element. The support fixing structure can include a pin of the optical element, a clamping groove of the shell, a hollow structure of the shell, etc.

[0013] In this way, the optical element, the support fixing structure, and the shell can be mass-produced by molding, three-dimensional (3D) printing, etc., and have a simple structure and low integration difficulty.

[0014] In combination with the first aspect or any possible implementation manner thereof, in another possible implementation manner, the shell and the optical element are made of transparent resin material. The transparent resin material can be processed into various optical elements due to its refractive index characteristics.

[0015] With reference to the first aspect or any possible implementation manner of the first aspect, in a possible implementation manner, the first optical link of the at least one optical link comprises a first lens, a first mirror, and a second lens, wherein the first lens is configured to collimate the optical signal from the optoelectronic chip, the first mirror is configured to reflect the collimated optical signal to the second lens, and the second lens is configured to focus the optical signal from the first mirror and send the focused optical signal to the first optical fiber channel of the cable; or the first optical link comprises a first ellipsoidal reflective lens configured to focus the optical signal from the optoelectronic chip and send the focused optical signal to the first optical fiber channel.

[0016] Optionally, the first mirror can be a plane mirror or a reflective prism, etc.

[0017] With reference to the first aspect or any possible implementation manner of the first aspect, in a possible implementation manner, the second optical link of the at least one optical link comprises a third lens, a second mirror, and a fourth lens, wherein the third lens is configured to collimate the optical signal from the second optical fiber channel of the cable, the second mirror is configured to reflect the collimated optical signal to the fourth lens, and the fourth lens is configured to focus the optical signal from the second mirror and send the focused optical signal to the optoelectronic chip; or the second optical link comprises a second ellipsoidal reflective lens configured to focus the optical signal from the second optical fiber channel and send the focused optical signal to the optoelectronic chip.

[0018] Optionally, the second mirror can be a plane mirror or a reflective prism, etc.

[0019] With reference to the first aspect or any possible implementation manner of the first aspect, in a possible implementation manner, the inside of the shell has a hollow structure for carrying and fixing the optical elements.

[0020] With reference to the first aspect or any possible implementation manner of the first aspect, in a possible implementation manner, the interface further comprises at least one filter; the filter is configured to filter the optical signal output by the optical fiber channel and send the filtered optical signal to the optical link; or the filter is configured to filter the optical signal output by the optical link and send the filtered optical signal to the optoelectronic chip; or the filter is configured to filter the optical signal output by the optical link and send the filtered optical signal to the optical fiber channel; or the filter is configured to filter the optical signal output by the optoelectronic chip and send the filtered optical signal to the optical link.

[0021] In the above technical solution, the filter can filter the light of the optical signal of the non-required wavelength, and reduce the interference signal.

[0022] With reference to the first aspect or any possible implementation manner thereof, in a possible implementation manner, the optoelectronic chip comprises at least one light receiving module and / or at least one light emitting module, the light receiving module is configured to convert the light signal from the cable into an electrical signal, and the light emitting module is configured to emit a light signal according to the received electrical signal.

[0023] With reference to the first aspect or any possible implementation manner thereof, in a possible implementation manner, the optoelectronic chip further comprises a signal processing module, and the signal processing module is configured to process the received electrical signal.

[0024] The processing herein can comprise at least one of the following: parallel-to-serial conversion, signal compensation processing, signal enhancement processing, and signal multiplexing processing, etc. In this way, the optoelectronic chip realizes the conversion of the optoelectronic signal while integrating the signal processing function, which can better utilize the bandwidth of the optical link and help save costs.

[0025] With reference to the first aspect or any possible implementation manner thereof, in a possible implementation manner, the interface comprises the cable. The cable can be part of the RJ interface.

[0026] With reference to the first aspect or any possible implementation manner thereof, in a possible implementation manner, the cable further comprises at least one electrical signal channel.

[0027] In this way, the RJ interface can not only complete the transmission of high-speed optical signals, but also complete the transmission of low-speed electrical signals, which helps to optimize the overall cost of the communication scheme.

[0028] The second aspect of the present application provides a communication device, which comprises the RJ interface of the first aspect or any possible implementation manner thereof.

[0029] The third aspect of the present application provides a signal transmission method, which is applied to an RJ interface, the interface comprises a shell and an optoelectronic chip, wherein the optoelectronic chip is located inside the shell and fixed to the shell, a first opening is provided on a first side of the shell, the first opening is used for connecting the optoelectronic chip with a cable comprising at least one optical fiber channel, a second opening is provided on a second side of the shell, the optoelectronic chip comprises a contact, and the contact is located at the second opening. The method comprises: receiving a first optical signal from the cable through the optoelectronic chip, converting the first optical signal into a first electrical signal, and outputting the first electrical signal through the contact; and / or receiving a second electrical signal through the contact, converting the second electrical signal into a second optical signal through the optoelectronic chip, and outputting the second optical signal to the cable.

[0030] The RJ interface in the embodiments of the present application can also be referred to as an O-RJ interface, a Registered Jack interface, a crystal head, an RJ connector, or an RJ plug, etc.

[0031] In the above technical solution, the functions of transmitting and receiving optical signals are integrated in the RJ interface, the interface is optically implemented, the terminal device can be directly connected to the optical interconnection network, the use of ONU boxes and various interfaces and cables can be avoided, the interfaces and cables of the optical interconnection network can be unified, and the optical interconnection network can be simplified and lightened, which helps to reduce the complexity of the optical interconnection network connection.

[0032] In combination with the third aspect, in a possible implementation manner, the interface further includes an optical element, the optical element is located inside the shell and fixed with the shell, the optoelectronic chip is connected with the cable through the first opening and the optical element, the optical element forms at least one optical link, and the number of the at least one optical fiber channel is less than or equal to the number of the at least one optical link; the receiving of the first optical signal from the cable includes receiving a third optical signal from the cable through the optical element, processing the third optical signal to obtain the first optical signal, and transmitting the first optical signal to the optoelectronic chip, and the processing includes at least one of collimation, reflection, and focusing; the outputting of the second optical signal to the cable includes receiving a second optical signal from the optoelectronic chip through the optical element, processing the second optical signal to obtain a fourth optical signal, and transmitting the fourth optical signal to the cable, and the processing includes at least one of collimation, reflection, and focusing.

[0033] In the above technical solution, the received optical signal can be processed by the optical element, such as collimation, reflection, and focusing, which is helpful to improve the utilization rate of the optical signal.

[0034] In combination with the third aspect or any possible implementation manner thereof, in another possible implementation manner, the shell and the optical element are made of the same material.

[0035] Optionally, the RJ interface further includes a support fixing structure, and the support fixing structure can also be made of the same material as the shell and the optical element. The support fixing structure can include a pin of the optical element, a clamping groove of the shell, a hollow structure of the shell, etc.

[0036] In this way, the optical element, the support fixing structure, and the shell can be produced in large scale by molding, 3D printing, etc., and have simple structure and low integration difficulty.

[0037] With the third aspect or any possible implementation manner thereof, in another possible implementation manner, the shell and the optical element are made of transparent resin material. The transparent resin material can be processed into various optical elements due to its refractive index characteristics.

[0038] In summary, the technical solution provided in the present application integrates the functions of transmitting and receiving optical signals in the RJ interface, realizes the interface optical, so that the terminal device can directly access the optical interconnection network, and the use of ONU box and various interfaces and cables can be avoided, the unification of the interface and cable of the optical interconnection network can be realized, and the optical interconnection network is simplified and lightened, which helps to reduce the complexity of the optical interconnection network connection. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a schematic diagram of an optical interconnection network based on the embodiment of the present application.

[0040] Figure 2 is a schematic structural diagram of an RJ interface of the embodiment of the present application.

[0041] Figure 3 is a schematic structural diagram of an O-RJ interface provided by the embodiment of the present application.

[0042] Figure 4 is another schematic structural diagram of an O-RJ interface provided by the embodiment of the present application.

[0043] Figure 5 is another schematic structural diagram of an O-RJ interface provided by the embodiment of the present application.

[0044] Figure 6 is another schematic structural diagram of an O-RJ interface provided by the embodiment of the present application.

[0045] Figure 7 is a schematic flowchart of a signal transmission method provided by the embodiment of the present application (I).

[0046] Figure 8 is a schematic flowchart of a signal transmission method provided by the embodiment of the present application (II). DETAILED DESCRIPTION

[0047] The technical solution in the present application will be described below in conjunction with the drawings.

[0048] The technical solutions of the embodiments of the present application can be applied to various optical communication scenarios. For example, scenarios of industrial passive optical network (PON), fiber to the room (FTTR), fiber to the desk (FTTD), fiber to the mobile base station (FTTM), and vehicle-mounted optical network.

[0049] The technical solutions of the embodiments of the present application are described below taking the scenario of an optical interconnection network as an example.

[0050] At the end of the existing optical interconnection network, when the optical signal is transmitted to various terminal devices via the OLT and the ODN, the optical signal and the electrical signal need to be converted to each other, so as to complete the optoelectronic interconnection with various terminal devices. Since the terminal devices generally do not have optical transceiver functions, the optical signal needs to be converted into an electrical signal in the ONU box, and then the ONU box connects various interfaces and cables of different specifications to transmit the signal to various terminal devices. Based on this technical solution, the ONU box needs to adapt to different interfaces and function combinations of various terminal devices, such as various models of RJ interfaces and various specifications of USB interfaces, etc. Meanwhile, the ONU box also needs to adapt to various usage environments and requirements, such as space and weight restrictions, etc. Therefore, a large number of ONU boxes of various models, as well as various cables and interfaces, are needed in the optical interconnection network, which increases the complexity of the optical interconnection network connection.

[0051] In view of the problem of high complexity of the optical interconnection network, the embodiments of the present application provide an RJ interface and a signal transmission method, which help to reduce the complexity of the optical interconnection network connection.

[0052] Figure 1 is a schematic diagram of an optical interconnection network based on the embodiments of the present application.

[0053] Among them, the communication interface (RJ interface in the embodiments of the present application) has an optical signal transceiver function, and the cable includes at least one optical fiber channel.

[0054] As shown in Figure 1 Various terminal devices realize the optical transceiver function via the communication interface, and then access the ODN with flexible optical splitting function through the cable, and then connect to the access network through the OLT or the central gateway. In this way, by integrating the optical signal transceiver function in the communication interface, the interface is optically realized, so that the terminal device can directly access the optical interconnection network, the use of the ONU box and various interfaces and cables can be avoided, the unification of the interfaces and cables of the optical interconnection network can be realized, and the optical interconnection network can be simplified and lightened, which helps to reduce the complexity of the optical interconnection network connection.

[0055] The communication interface provided by the embodiment of the present application is described in detail below.

[0056] Figure 2 is a schematic structural diagram of the RJ interface of the embodiment of the present application. As shown in Figure 2 , the interface 200 includes a shell 210 and an optoelectronic chip 220. The shell 210 is used to carry all structures and elements of the communication interface. The optoelectronic chip 220 is located inside the shell 210 and fixed to the shell 210, and is used to transceive optical signals. The transceiving of optical signals mentioned herein can be understood as converting received optical signals into electrical signals and / or transmitting optical signals according to received electrical signals.

[0057] The shell 210 of the embodiment of the present application has the same or similar form as a conventional RJ interface. The first side of the shell 210 has a first opening 2101, which is the cable inlet. The second side of the shell 210 has a second opening 2102, so that the optoelectronic chip 220 inside the shell 210 is electrically connected to the terminal device.

[0058] Optionally, the third side of the shell 210 forms a snap structure 2103, so as to be firmly connected to the terminal device.

[0059] Optionally, the shell 210 is made of transparent resin material.

[0060] It should be noted that the positional relationship of the first side, the second side and the third side can be different based on different implementation manners of the communication interface, and the embodiment of the present application does not specifically limit the positional relationship of the first side, the second side and the third side. For example, as shown in Figure 2 , the form of the shell 210 is similar to that of the conventional RJ interface. The left side of the shell 210 (which can correspond to the first side) is the cable inlet, the right side of the bottom (which can correspond to the second side) retains the contact opening, and the top (which can correspond to the third side) is the same snap structure 2103 as the conventional RJ interface. The technical solution of the embodiment of the present application is described below taking the positional relationship of the first side, the second side and the third side shown in Figure 2 as an example.

[0061] The optoelectronic chip 220 of the embodiment of the present application includes a contact 2201, which is located at the second opening 2102 and is used to receive electrical signals. The transceiving of electrical signals mentioned herein can be understood as conducting, passing or transmitting electrical signals.

[0062] Optionally, the contact 2201 is in the same form as the gold finger contact of the conventional RJ interface, and is used to be electrically connected to the terminal device. In this way, the optoelectronic chip 220 is carried in the shell 210, and directly forms electrical interconnection with the port of the terminal device through the gold finger contact consistent with the standard of the conventional interface, which has little modification to the original structure of the port of the terminal device.

[0063] It should be understood that the contact 2201 can be part of the optoelectronic chip 220 as shown, or can be arranged independently of the optoelectronic chip 220. When the contact 2201 is arranged independently, the optoelectronic chip 220 can have a pin electrically connected with the contact 2201. Figure 2

[0064] Optionally, the optoelectronic chip 220 includes at least one light receiving module or at least one light emitting module. The light receiving module is configured to convert the optical signal from the cable into an electrical signal, and the light emitting module is configured to emit an optical signal according to the received electrical signal.

[0065] In some implementations, one receiving optical fiber channel can correspond to one light receiving module, and when the cable 240 includes multiple receiving optical fiber channels, the optoelectronic chip 220 can include multiple light receiving modules; similarly, one transmitting optical fiber channel can correspond to one light emitting module, and when the cable 240 includes multiple transmitting optical fiber channels, the optoelectronic chip 220 can include multiple light emitting modules.

[0066] In other implementations, one receiving optical fiber channel can correspond to multiple light receiving modules; similarly, one transmitting optical fiber channel can correspond to multiple light emitting modules. In this way, the cost of optical fibers can be saved.

[0067] Optionally, the light receiving module includes a photo diode (PD), a trans-impedance amplifier (TIA), etc.

[0068] Optionally, the light emitting module includes a laser diode (LD), a driver-laser (DRV-LA), etc.

[0069] Optionally, the optoelectronic chip 220 further includes a signal processing module configured to process the electrical signal output by the light receiving module and / or the electrical signal from the terminal device. The processing can include at least one of the following: serial-to-parallel processing, signal compensation processing, signal enhancement processing, and signal multiplexing processing, etc. In this way, the optoelectronic chip 220 realizes the conversion of optical and electrical signals while integrating the signal processing function, which can better utilize the bandwidth of the optical link and help save costs.

[0070] The embodiments of the present application do not make specific limitations on the fixing method of the housing 210 and the optoelectronic chip. For example, as shown, a recess is left at the bottom of the housing 210 for fixing the optoelectronic chip 220. For another example, the bottom of the housing 210 is not left with a recess, and the optoelectronic chip 220 can be directly pasted and fixed at the bottom of the housing 210. Figure 2 The embodiments of the present application do not make specific limitations on the fixing method of the housing 210 and the optoelectronic chip. For example, as shown, a recess is left at the bottom of the housing 210 for fixing the optoelectronic chip 220. For another example, the bottom of the housing 210 is not left with a recess, and the optoelectronic chip 220 can be directly pasted and fixed at the bottom of the housing 210. The embodiments of the present application do not make specific limitations on the fixing method of the housing 210 and the optoelectronic chip. For example, as shown, a recess is left at the bottom of the housing 210 for fixing the optoelectronic chip 220. For another example, the bottom of the housing 210 is not left with a recess, and the optoelectronic chip 220 can be directly pasted and fixed at the bottom of the housing 210.

[0071] In some implementations, the communication interface 200 may further include an optical element 230 for performing at least one of the following processes on the optical signal: collimation, reflection, and focusing. The optical element 230 is located inside and fixed to the housing 210. The optoelectronic chip 220 can be connected to the cable 240 through the first opening 2101 and the optical element 230.

[0072] Optionally, the optical element 230 forms at least one optical link.

[0073] Optionally, the number of at least one fiber optic channel in cable 240 is less than or equal to the number of at least one optical link. When the number of at least one fiber optic channel is less than the number of at least one optical link, the optical signals of multiple optical links can be transmitted in the same fiber optic channel, which can save fiber optic costs.

[0074] Optionally, each optical link may include at least one of a lens for collimation, a plane mirror or a reflecting prism for reflection, and a lens for focusing.

[0075] For example, such as Figure 3 and Figure 5 As shown, the first optical link for transmitting optical signals into the optical fiber channel may include a first lens (e.g., Figure 3 and Figure 5 Lens 2301), and the first reflecting mirror (e.g., Figure 3 and Figure 5 The reflector 2302 in the middle), and the second lens (e.g., Figure 3 and Figure 5 The first lens (2303) is used to collimate the optical signal from the photoelectric chip, the first reflector is used to reflect the collimated optical signal to the second lens, and the second lens is used to focus the optical signal from the first reflector and send it to the first optical fiber channel of the cable.

[0076] For example, such as Figure 3 and Figure 5 As shown, the second optical link for receiving optical signals from the fiber optic channel may include a third lens (e.g., Figure 3 and Figure 5 Lens 2304 in the middle), second reflecting mirror (e.g., Figure 3 and Figure 5 The reflector 2305 in the middle), and the fourth lens (e.g., Figure 3 and Figure 5 The lens 2306 in the middle, wherein the third lens is used to collimate the optical signal from the second optical fiber channel, the second reflector is used to reflect the collimated optical signal to the fourth lens, and the fourth lens is used to focus the optical signal from the second reflector and send it to the photoelectric chip.

[0077] Optionally, each optical link includes an ellipsoidal reflecting lens for reflecting and focusing.

[0078] For example, as shown in Figure 4 and Figure 6 , the first optical link for transmitting optical signals to the fiber channel can include a first ellipsoidal reflecting lens (e.g., the ellipsoidal reflecting lens 2307 in Figure 4 and Figure 6 ), which is used for focusing the optical signals from the optoelectronic chip and transmitting the focused optical signals to the first fiber channel.

[0079] For another example, as shown in Figure 4 and Figure 6 , the second optical link for receiving optical signals from the fiber channel can include a second ellipsoidal reflecting lens (e.g., the ellipsoidal reflecting lens 2308 in Figure 4 and Figure 6 ), which is used for focusing the optical signals from the second fiber channel and transmitting the focused optical signals to the optoelectronic chip.

[0080] The embodiments of the present application do not make specific limitations on the way the optical element 230 is fixed in the housing 210. For example, the interior of the housing 210 has a hollow structure, and the optical element 230 is supported by a pin carried in the hollow structure of the housing 210.

[0081] Optionally, the optical element 230 is made of the same material as the housing 210. If the RJ interface further includes a support fixing structure, the support fixing structure can also be made of the same material as the housing and the optical element. The support fixing structure can include the pin of the optical element, the clamping slot of the housing, the hollow structure of the housing, etc. In this way, the optical element, the support fixing structure, and the housing can be mass-produced by molding, 3D printing, etc. The structure is simple and the integration difficulty is low.

[0082] For example, the optical element 230 can be made of the same transparent resin material as the housing 210.

[0083] In some implementations, the communication interface 200 further includes at least one filter for filtering optical signals of non-desired wavelengths.

[0084] Optionally, the filter can be located at the port of the optoelectronic chip 220. For example, as shown in Figure 5 and Figure 6 , the filter is located at the PD port of the light receiving module or the LD port of the light emitting module. Specifically, the filter is used for filtering the optical signals output by the optical link and transmitting the filtered optical signals to the fiber channel, or filtering the optical signals output by the optoelectronic chip and transmitting the filtered optical signals to the optical link.

[0085] Optionally, the filter can be located at the port of the fiber channel of the cable. For example, as shown in Figure 3 and Figure 4 , the filter can be integrated in the port of the fiber channel. Specifically, the filter is used to filter the optical signal output by the fiber channel and send the filtered optical signal to the optical link, or to filter the optical signal output by the optical link and send the filtered optical signal to the optoelectronic chip.

[0086] In the embodiments of the present application, the communication interface 200 is matched with the cable 240. For example, the number of fiber channels included in the cable 240 is less than or equal to the number of optical links included in the communication interface 200.

[0087] In some implementations, the communication interface 200 does not include the cable 240. The communication interface 200 and the cable 240 can be in the form of pluggable.

[0088] In other implementations, the cable 240 can be part of the communication interface 200, that is, the communication interface 200 can include the cable 240.

[0089] Optionally, the cable 240 can also include at least one electrical signal channel. The electrical signal channel is electrically connected to the optoelectronic chip 220. In this way, the communication interface 200 can not only complete the transmission of high-speed optical signals, but also complete the transmission of low-speed electrical signals, which helps to optimize the overall cost of the communication solution.

[0090] Optionally, the electrical signal channel can be a copper cable channel. At this time, the cable 240 can be an optoelectronic composite cable.

[0091] The RJ interface provided by the embodiments of the present application will be described in detail below in conjunction with the example shown in Figures 3 to 6 .

[0092] Example 1

[0093] As shown in Figure 3 , the O-RJ interface is composed of an RJ-shaped transparent resin shell 210, an optoelectronic chip 220, a transparent resin optical element 230, and an optoelectronic composite cable 240. The structure of each part and its function will be described below.

[0094] 1. RJ-shaped transparent resin shell 210

[0095] 1) The shell 210 made of transparent resin material is responsible for carrying all structures and devices, and its form is similar to that of a conventional transparent resin RJ interface.

[0096] 2) The left end of the shell 210 is the access port of the optoelectronic composite cable 240, which can correspond to the first opening described above.

[0097] 3) The top of the shell 210 is the same buckle structure 2103 as the traditional transparent resin RJ interface.

[0098] 4) The middle part of the shell 210 is a hollow structure (not shown) for carrying the transparent resin optical element 230. Figure 3

[0099] 5) The bottom of the shell 210 has a groove for fixing the optoelectronic chip 220, and the right end of the bottom of the shell 210 retains a gold finger contact opening (which can correspond to the second opening mentioned above) to complete the connection with the terminal device.

[0100] 2, Optoelectronic chip 220

[0101] 1) The optoelectronic chip 220 is fixed in the groove at the bottom of the shell 210.

[0102] 2) The optoelectronic chip 220 carries optical transmitting modules 2202 (including LD, DRV-LA, etc.), optical receiving modules 2203 (including PD, TIA, etc.), signal processors 2203 (for realizing the functions of the signal processing module mentioned above), etc. And the gold finger contact 2201 on the optoelectronic chip 220 is the same as the traditional transparent resin RJ interface, which is used to connect with the terminal device port.

[0103] 3, Transparent resin optical element 230

[0104] 1) The optical element 230 is used to transmit optical signals. The transparent resin material can be processed into various optical elements due to its refractive index characteristics, so the optical element 230 can be made of the same transparent resin material as the shell 210.

[0105] 2) The optical element 230 is supported by the pins made of transparent resin, and the pins are carried in the shell 210.

[0106] 3) The optical element 230 forms one or more.

[0107] Figure 3 ​Take the formation of an optical receiving link and an optical transmitting link as an example. The optical transmitting link includes lens 2301, mirror 2302, and lens 2303. In the optical transmitting link, the optical signal is emitted by the LD of the optical transmitting module 2202, collimated by the lens 2301, reflected by the mirror 2302, focused by the lens 2303, and then coupled into the transmitting optical channel fiber 2401 of the optical fiber cable 240. The optical receiving link includes lens 2304, mirror 2305, and lens 2306. In the optical receiving link, the optical signal is emitted by the receiving optical channel fiber 2402 in the optical fiber cable 240, collimated by the lens 2304, reflected by the mirror 2305, focused by the lens 2306, and then coupled into the PD port of the optical receiving module 2203.

[0108] 4. The optical fiber cable 240

[0109] 1) The optical fiber cable 240 includes one or more optical fiber channels, Figure 3 For example, the optical fiber cable 240 includes a transmitting optical fiber channel 2401 and a receiving optical fiber channel 2402.

[0110] 2) The port of the optical fiber channel is integrated with a filter 250 for filtering optical signals of non-required wavelengths. Specifically, the port of the transmitting optical fiber channel 2401 is integrated with a filter 2502, and the port of the receiving optical fiber channel 2402 is integrated with a filter 2501.

[0111] 3) The optical fiber cable 240 also includes one or more electrical signal copper cable channels for low-speed electrical signal transmission and communication. Figure 3 For example, the optical fiber cable 240 includes a transmitting optical fiber channel 2401 and a receiving optical fiber channel 2402.

[0112] The O-RJ transparent resin shell 210 is consistent with the traditional transparent resin RJ interface form, which can be an upgrade of the traditional RJ interface. The O-RJ directly gives the existing terminal equipment OFT function, realizes function upgrade, directly connects the terminal equipment into the optical network, and removes the use of various specifications of cables, interfaces, and integrated various port forms and adaptive various environment requirements of massive types of ONU, which is conducive to the simplification and lightweight of optical network connection in various application scenarios. The O-RJ interface cooperates with the optical fiber cable to define the cable and interface standard in the new optical interconnection scene, which is conducive to reducing the difficulty, complexity, and cost of optical interconnection network connection.

[0113] In addition, by directly connecting the terminal equipment into the optical network through the O-RJ interface, cooperating with the new optical interconnection networking form and flexible optical splitting network, it is beneficial to mobilize the computing and storage resources of each terminal equipment as needed, and realize more abundant functions and resource saving.

[0114] Example 2

[0115] The difference between the O-RJ interface shown in Figure 3 and the optical element 230.

[0116] Specifically, as shown in Figure 4 , the optical element 230 forming the light emission link includes an ellipsoidal reflecting lens 2307, which has both reflecting and focusing functions. The ellipsoidal reflecting lens 2307 made of transparent resin is supported by a pin made of transparent resin and carried in the shell 210. In the light emission link, the light signal is emitted by the LD in the light emission module 2202, reflected and focused by the ellipsoidal reflecting lens 2307, and coupled into the transmission fiber channel 2401 of the optical fiber cable 240. Similarly, the optical element 230 forming the light receiving link includes an ellipsoidal reflecting lens 2308, which has both reflecting and focusing functions. The ellipsoidal reflecting lens 2308 made of transparent resin is supported by a pin made of transparent resin and carried in the shell 210. In the light receiving link, the light signal is emitted by the receiving fiber channel 2402 of the optical fiber cable 240, reflected and focused by the ellipsoidal reflecting lens 2308, and coupled into the PD port of the light receiving module 2203.

[0117] Example 3

[0118] The difference between the O-RJ interface shown in Figure 3 and the positions of the filters 2501 and 2502. Specifically, as shown in Figure 5 , the filter 2501 is located on the PD port of the light receiving module 2203 on the optoelectronic chip 220, and the filter 2502 is located on the LD port of the light emission module 2202 on the optoelectronic chip 220, for filtering light of non-required wavelength of the light signal.

[0119] Example 4

[0120] The difference between the O-RJ interface shown in Figure 4 and the positions of the filters 2501 and 2502. Specifically, as shown in Figure 6 , the filter 2501 is located on the PD port of the light receiving module 2203 on the optoelectronic chip 220, and the filter 2502 is located on the LD port of the light emission module 2202 on the optoelectronic chip 220, for filtering light of non-required wavelength of the light signal.

[0121] The device embodiments of the present application are introduced above, and the signal transmission method provided by the present application is described below.

[0122] Figure 7 and Figure 8 is a schematic flowchart of the signal transmission method provided by the embodiments of the present application.

[0123] Figure 7 and Figure 8The method shown can be applied to an RJ interface, which includes a housing and an optoelectronic chip, wherein the optoelectronic chip is located inside the housing and fixed to the housing, the first side of the housing has a first opening for the optoelectronic chip to connect with a cable including at least one optical fiber channel, and the second side of the housing has a second opening, and the optoelectronic chip includes a contact located at the second opening.

[0124] When the RJ interface is used to transmit a signal to a terminal device, as shown in Figure 7 The method can include steps 710-730.

[0125] In step 710, a first optical signal from the cable is received by the optoelectronic chip.

[0126] In some implementations, the RJ interface further includes an optical element located inside the housing and fixed to the housing, the optoelectronic chip is connected with the cable through the first opening and the optical element, and the optical element forms at least one optical link, the number of the at least one optical fiber channel is less than or equal to the number of the at least one optical link. Specifically, a third optical signal from the cable is received by the optical element, the first optical signal is obtained by processing the third optical signal, and the first optical signal is transmitted to the optoelectronic chip, and the processing includes at least one of collimation, reflection, and focusing.

[0127] As an example, a second optical link in the at least one optical link described above includes a third lens, a second mirror, and a fourth lens. Specifically, the optical signal from the second optical fiber channel of the cable is collimated by the third lens, the collimated optical signal is reflected by the second mirror to the fourth lens, and the optical signal from the second mirror is focused by the fourth lens and transmitted to the optoelectronic chip.

[0128] As another example, the second optical link described above includes a second ellipsoidal reflective lens. Specifically, the optical signal from the second optical fiber channel is focused by the second ellipsoidal reflective lens and transmitted to the optoelectronic chip.

[0129] In some implementations, the RJ interface further includes at least one filter. Specifically, the optical signal output by the optical fiber channel is filtered by the filter and transmitted to the optical link, or the optical signal output by the optical link is filtered by the filter and transmitted to the optoelectronic chip.

[0130] For example, before the optical signal from the second optical fiber channel of the cable is collimated by the third lens, the optical signal output by the second optical fiber channel is filtered by the filter and transmitted to the third lens.

[0131] For example, before the focused light signal is transmitted to the opto-electronic chip through the fourth lens, the light signal outputted by the fourth lens is filtered by a filter and transmitted to the opto-electronic chip.

[0132] For example, before the light signal from the second fiber channel is focused by the second ellipsoidal reflecting lens, the light signal outputted by the second fiber channel is filtered by a filter and transmitted to the second ellipsoidal reflecting lens.

[0133] For example, before the focused light signal is transmitted to the opto-electronic chip through the second ellipsoidal reflecting lens, the light signal outputted by the second ellipsoidal reflecting lens is filtered by a filter and transmitted to the opto-electronic chip.

[0134] In step 720, the opto-electronic chip converts the first light signal into a first electrical signal.

[0135] In step 730, the opto-electronic chip outputs the first electrical signal through the contact.

[0136] When the RJ interface is used to receive signals from terminal devices, as shown in Figure 8 the method can include steps 740-760.

[0137] In step 740, the opto-electronic chip receives a second electrical signal through the contact.

[0138] In step 750, the opto-electronic chip converts the second electrical signal into a second light signal.

[0139] In step 760, the opto-electronic chip outputs the second light signal to the cable.

[0140] In some implementations, the RJ interface further includes an optical element inside and fixed to the housing, the opto-electronic chip is connected to the cable through the first opening and the optical element, the optical element forms at least one optical link, the number of the at least one optical fiber channel is less than or equal to the number of the at least one optical link. The optical element receives a second light signal from the opto-electronic chip, processes the second light signal to obtain a fourth light signal, and transmits the fourth light signal to the cable, the processing includes at least one of collimation, reflection and focusing.

[0141] As an example, the first optical link in the at least one optical link comprises a first lens, a first mirror, and a second lens. Specifically, the first lens collimates the optical signal from the optoelectronic chip, the first mirror reflects the collimated optical signal to the second lens, and the second lens focuses the optical signal from the first mirror and sends the focused optical signal to the first optical fiber channel of the cable.

[0142] As another example, the first optical link comprises a first ellipsoidal reflective lens. Specifically, the first ellipsoidal reflective lens focuses the optical signal from the optoelectronic chip and sends the focused optical signal to the first optical fiber channel of the cable.

[0143] In some implementations, the RJ interface further comprises at least one filter. Specifically, the filter filters the optical signal output by the optical link and sends the filtered optical signal to the optical fiber channel, or the filter filters the optical signal output by the optoelectronic chip and sends the filtered optical signal to the optical link.

[0144] For example, the filter filters the optical signal from the optoelectronic chip and sends the filtered optical signal to the first lens before the first lens collimates the optical signal from the optoelectronic chip.

[0145] For another example, the filter filters the optical signal output by the second lens and sends the filtered optical signal to the first optical fiber channel before the second lens sends the focused optical signal to the first optical fiber channel.

[0146] For another example, the filter filters the optical signal from the optoelectronic chip and sends the filtered optical signal to the first ellipsoidal reflective lens before the first ellipsoidal reflective lens focuses the optical signal from the optoelectronic chip.

[0147] For another example, the filter filters the optical signal output by the first ellipsoidal reflective lens and sends the filtered optical signal to the first optical fiber channel before the first ellipsoidal reflective lens sends the focused optical signal to the first optical fiber channel.

[0148] It should be noted that if the RJ interface is used to send signals to the terminal device and receive signals from the terminal device at the same time, the method can comprise the steps 710-760 described above.

[0149] It should be further noted that the signal transmission method provided by the present application corresponds to the device embodiment provided by the present application. The signal transmission method of the present application relies on the device provided by the present application. The device provided by the present application can implement the signal transmission method provided by the present application. For a more detailed description of the signal transmission method, the device embodiment can be directly obtained, and here it will not be repeated.

[0150] It should be noted that the bottom, top, left side, right side and the like described in the embodiments of the present application are only relative directions, and should not be understood as absolute bottom, top, left side, right side and the like. With the setting direction of the communication interface being different, the bottom, top, left side, right side and the like will also change accordingly.

[0151] Unless otherwise defined, all technical and scientific terms used in the embodiments of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the scope of the present application. It should be understood that the above is for illustration only, and the examples above are only to help those skilled in the art to understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific values or specific scenarios shown. Those skilled in the art can obviously make various equivalent modifications or changes according to the examples given above, and such modifications and changes also fall within the scope of the embodiments of the present application.

[0152] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical scope disclosed in the present application, and such changes and replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An RJ interface, characterized by, Comprising: a housing, an optoelectronic chip and an optical element; wherein, a first side of the housing has a first opening which is an access port for a cable comprising at least one optical fiber channel, a second side of the housing has a second opening, contacts of the optoelectronic chip are located at the second opening, the contacts are used for transmitting and receiving electrical signals; the optoelectronic chip is located inside the housing and fixed with the housing, the optoelectronic chip is used for converting received optical signals into electrical signals and / or transmitting optical signals according to received electrical signals; the optical element is located inside the housing and fixed with the housing, the optoelectronic chip is connected with the cable through the first opening and the optical element, the optical element forms at least one optical link, the number of the at least one optical fiber channel is less than or equal to the number of the at least one optical link, the optical link is used for at least one of the following processes: collimation, reflection and focusing, on optical signals from the cable or the optoelectronic chip; the housing and the optical element are made of the same material, and the housing and the optical element are made of transparent resin material.

2. The interface according to claim 1, wherein, a first optical link in the at least one optical link comprises a first lens, a first mirror and a second lens, wherein the first lens is used for collimating optical signals from the optoelectronic chip, the first mirror is used for reflecting the collimated optical signals to the second lens, and the second lens is used for focusing the optical signals from the first mirror and transmitting to a first optical fiber channel of the cable; or the first optical link comprises a first ellipsoidal reflective lens, the first ellipsoidal reflective lens is used for focusing optical signals from the optoelectronic chip and transmitting the focused optical signals to the first optical fiber channel.

3. The interface according to claim 1 or 2, wherein, a second optical link in the at least one optical link comprises a third lens, a second mirror and a fourth lens, wherein the third lens is used for collimating optical signals from a second optical fiber channel of the cable, the second mirror is used for reflecting the collimated optical signals to the fourth lens, and the fourth lens is used for focusing the optical signals from the second mirror and transmitting to the optoelectronic chip; or the second optical link comprises a second ellipsoidal reflective lens, the second ellipsoidal reflective lens is used for focusing optical signals from the second optical fiber channel and transmitting to the optoelectronic chip.

4. The interface of claim 1 or 2, wherein, The inside of the housing has a hollow structure for carrying and fixing the optical element.

5. The interface of claim 1 or 2, wherein, The interface further comprises at least one filter; the filter is used for filtering optical signals output by the optical fiber channel and transmitting the filtered optical signals to the optical link; or the filter is used for filtering optical signals output by the optical link and transmitting the filtered optical signals to the optoelectronic chip; or the filter is used for filtering optical signals output by the optical link and transmitting the filtered optical signals to the optical fiber channel; or ​ The filter is used for filtering the optical signal output by the optoelectronic chip and transmitting the filtered optical signal to the optical link.

6. The interface of claim 1 or 2, wherein, The optoelectronic chip comprises at least one optical receiving module and / or at least one optical transmitting module, the optical receiving module is used for converting the optical signal from the cable into an electrical signal, and the optical transmitting module is used for transmitting an optical signal according to the received electrical signal.

7. The interface of claim 6, wherein, The optoelectronic chip further comprises a signal processing module, which is used for processing the received electrical signal.

8. The interface of claim 1 or 2, wherein, The interface comprises the cable.

9. The interface of claim 8, wherein, The cable further comprises at least one electrical signal channel.

10. A communication device, characterized by The communication device comprises the RJ interface according to any one of claims 1 to 9.

11. A signal transmission method, characterized by, The method is applied to the RJ interface, the interface comprises a shell and an optoelectronic chip, wherein the first side of the shell has a first opening, the first opening is the access port of the cable comprising at least one optical fiber channel, the second side of the shell has a second opening, the contact of the optoelectronic chip is located at the second opening, the optoelectronic chip is located inside the shell and fixed with the shell, and the method comprises: receiving the first optical signal from the cable through the optoelectronic chip, converting the first optical signal into a first electrical signal, and outputting the first electrical signal through the contact; and / or, receiving a second electrical signal through the contact, converting the second electrical signal into a second optical signal through the optoelectronic chip, and outputting the second optical signal to the cable; The interface further comprises an optical element, the optical element is located inside the shell and fixed with the shell, the optoelectronic chip is connected with the cable through the first opening and the optical element, the optical element forms at least one optical link, and the number of the at least one optical fiber channel is less than or equal to the number of the at least one optical link; The receiving the first optical signal from the cable comprises: receiving a third optical signal from the cable through the optical element, processing the third optical signal to obtain a first optical signal, and transmitting the first optical signal to the optoelectronic chip, wherein the processing comprises at least one of collimation, reflection and focusing; The outputting the second optical signal to the cable comprises: receiving a second optical signal from the optoelectronic chip through the optical element, processing the second optical signal to obtain a fourth optical signal, and transmitting the fourth optical signal to the cable, wherein the processing comprises at least one of collimation, reflection and focusing; The shell and the optical element are made of the same material, and the shell and the optical element are made of transparent resin material.

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