A light engine configuration method, apparatus, and switching device

Abstract

The specification provides a light engine configuration method, device and switching equipment, and relates to the technical field of communication. A light engine configuration method comprises the following steps: if an in-place signal of an external light source is detected, determining an interface corresponding to the in-place signal and a light engine corresponding to the interface; obtaining an external light source type of the external light source from a register of the external light source, wherein the external light source type at least comprises a non-data pass-through type external light source, a data center range (DR) type data pass-through type external light source and a far distance (FR) type data pass-through type external light source; and setting a compensation value of a compensator in the corresponding light engine according to the external light source type, wherein the compensation value comprises a first compensation value and a second compensation value, the non-data pass-through type external light source and the DR type data pass-through type external light source correspond to the first compensation value, and the FR type data pass-through type external light source corresponds to the second compensation value. Through the above method, the switching equipment can be more flexible in use of the external light source.

Description

Technical Field

[0001] This specification relates to the field of communication technology, and in particular to a method, apparatus, and switching device for configuring an optical engine. Background Technology

[0002] With the development of network technology, users' demand for network transmission speed is gradually increasing. Currently, electrical signal transmission is approaching its bottleneck. In order to further improve network transmission speed, optical signals can be used to partially replace electrical signals for transmission. CPO (Co-packaged Optics or Co-packaging) technology and NPO (Nearpackaged Optics) technology have emerged as a result.

[0003] In switching equipment using CPO or NPO technologies, external light sources are typically used to provide optical signals. External light sources can be categorized into pass-through and non-pass-through types. Pass-through external light sources can be further divided into DR (Datacenter Reach) and FR (Far Reach) types, and these external light sources can use the same interface type. After the optical signal is introduced into the switching equipment, it undergoes splitting and coupling processes within the optical engine to carry the optical signal data for external transmission.

[0004] Because the wavelengths of the optical signals emitted by non-data pass-through external light sources, DR-type data pass-through external light sources, and FR-type data pass-through external light sources are not completely consistent, the optical splitters and couplers required in the optical engine of the switching equipment need to be configured differently. As a result, a switching equipment can only use one type of external light source after configuration. However, for operators, blindly inserting the external light source without knowing the type used by the switching equipment may result in the inability to output an optical signal, requiring the replacement with another type of external light source, thus reducing the flexibility of the switching equipment in using external light sources. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this specification provides a method, apparatus, and switching device for configuring an optical engine.

[0006] In conjunction with a first aspect of the embodiments described herein, this application provides a method for configuring a light engine, comprising:

[0007] If the presence signal of an external light source is detected, determine the interface corresponding to the presence signal and the light engine corresponding to the interface;

[0008] The type of external light source is obtained from the register of the external light source. The external light source type includes at least non-data pass-through external light source, data center range DR type data pass-through external light source and long distance FR type data pass-through external light source.

[0009] The compensation value of the compensator in the corresponding light engine is set according to the type of external light source. The compensation value includes a first compensation value and a second compensation value. The first compensation value corresponds to non-data pass-through external light sources and DR type data pass-through external light sources, while the second compensation value corresponds to FR type data pass-through external light sources.

[0010] Optionally, the register includes a first register bit and a second register bit. The first register bit is used to identify whether the external light source is a data pass-through type external light source or a non-data pass-through type external light source, and the second register bit is used to identify whether the external light source is a DR type or a FR type.

[0011] Optionally, the first register bit is located on page 00h or page 01h.

[0012] Optionally, the second register bit is the 170th byte on page 00h.

[0013] In conjunction with a second aspect of the embodiments described herein, this application provides a light engine configuration apparatus, comprising:

[0014] The presence detection unit is used to determine the interface corresponding to the presence signal and the light engine corresponding to the interface if the presence signal of the external light source is detected.

[0015] The acquisition unit is used to acquire the type of external light source from the register of the external light source, wherein the type of external light source includes at least a non-data pass-through external light source, a data center range DR type data pass-through external light source, and a long distance FR type data pass-through external light source;

[0016] The compensation unit is used to set the compensation value of the compensator in the corresponding light engine according to the type of external light source. The compensation value includes a first compensation value and a second compensation value. The first compensation value corresponds to non-data pass-through external light sources and DR type data pass-through external light sources, and the second compensation value corresponds to FR type data pass-through external light sources.

[0017] Optionally, the register includes a first register bit and a second register bit. The first register bit is used to identify whether the external light source is a data pass-through type external light source or a non-data pass-through type external light source, and the second register bit is used to identify whether the external light source is a DR type or a FR type.

[0018] Optionally, the first register bit is located on page 00h or page 01h.

[0019] Optionally, the second register bit is the 170th byte on page 00h.

[0020] In conjunction with a third aspect of the embodiments described herein, this application provides a switching device comprising a processor, one or more interfaces, and an optical engine corresponding to the interfaces, wherein the interfaces are connected to an external light source;

[0021] Light engines, including:

[0022] First modulation arm;

[0023] Second modulation arm;

[0024] A phase shifter, connected to the first modulation arm, carries the electrical signal for transmitting data on the optical signal transmitted by the first modulation arm;

[0025] The optical splitter has its input end connected to the optical signal input end of the interface, and its output end connected to the first modulation arm and the second modulation arm respectively, for splitting the received optical signal input into the first modulation arm and the second modulation arm.

[0026] The coupler has its input terminals connected to the first modulation arm and the second modulation arm, respectively, and its signal output terminal connected to the optical signal output terminal of the interface.

[0027] The first compensator has its input connected to the processor and its output connected to the beam splitter and coupler, respectively. The processor sets the compensation value of the first compensator for the beam splitter and coupler according to the type of the external light source obtained from the register of the external light source.

[0028] Optionally, the optical engine also includes a second compensator and an MPD, wherein the input of the MPD is connected to the detection output of the coupler, the output of the MPD is connected to the input of the second compensator, and the output of the second compensator is connected to the first modulation arm and / or the second modulation arm.

[0029] The technical solutions provided by the embodiments in this specification may include the following beneficial effects:

[0030] In the embodiments described in this specification, the type of external light source stored in the register of the external light source is obtained by the switching device, and the compensation value in the optical engine is set based on the type of external light source. This enables the switching device to flexibly apply non-data pass-through external light sources, DR-type data pass-through external light sources, and FR-type data pass-through external light sources, simplifying the configuration process of the optoelectronic switching device for different external light sources and improving the flexibility of the optoelectronic switching device in configuration.

[0031] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the specification, serve to explain the principles of this specification.

[0033] Figure 1 This is a schematic diagram of the structure of a switching device involved in this application;

[0034] Figure 2 This is a schematic diagram of the structure of an optical engine in a switching device according to an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the structure of an optical engine in another switching device according to an embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the structure of the DR-type data direct-through external light source and the FR-type data direct-through external light source involved in the embodiments of this application;

[0037] Figure 5 A schematic diagram of the interface structure in a switching device according to an embodiment of this application;

[0038] Figure 6 This application provides a schematic diagram illustrating the connection relationship between an optical engine, an optical path rearrangement mechanism, and interfaces in a switching device.

[0039] Figure 7 This is a flowchart of a light engine configuration method involved in this application;

[0040] Figure 8 This is a schematic diagram of the structure of a light engine configuration device involved in this application. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification.

[0042] This application provides a switching device 100, such as Figure 1-3As shown, the device includes a processor 101, one or more interfaces 102, and an optical engine 103 corresponding to each interface 102. The interface 102 is connected to an external light source 200. In the switching device 100 of an NPO or CPO, a circuit board 107 is provided near the front panel 104. The processor 101, the optical fiber cable 105 (or the flexible board for transmitting optical signals), the optical engine 103, and the logic device 106 for electrical signal processing and switching are provided on the circuit board 107. The processor 101 is used to configure the optical engine 103 and other devices.

[0043] Generally, the optical engine 103 is connected to the interface 102 via the optical cable 105 for optical signal input and output, and the processor 101 and its peripheral circuits (not shown) are connected to the logic device 106 for coupling and transmission of optical signals. Figure 1 This is merely an example and does not limit the specific connections between the structures.

[0044] Light Engine 103, such as Figure 2 As shown, it includes:

[0045] First modulation arm 1030;

[0046] Second modulation arm 1031;

[0047] Phase shifter 1032 is connected to the first modulation arm 1030, and the electrical signal used to transmit data is carried by the optical signal transmitted by the first modulation arm 1030;

[0048] The splitter 1033 has an input terminal 1033A connected to the optical signal input terminal of the interface 102, and an output terminal 1033B connected to the first modulation arm 1030 and the second modulation arm 1031 respectively, for splitting the received optical signal input to the first modulation arm 1030 and the second modulation arm 1031.

[0049] Coupler 1034, input terminal 1034A of coupler 1034 is connected to the first modulation arm 1030 and the second modulation arm 1031 respectively, and signal output terminal 1034B of coupler 1034 is connected to the optical signal output terminal of interface 102.

[0050] The first compensator 1035 has an input terminal 1035A connected to the processor 101 and an output terminal 1035B connected to the beam splitter 1033 and the coupler 1034, respectively. The processor 101 sets the compensation value of the first compensator 1035 for the beam splitter 1033 and the coupler 1034 according to the type of the external light source obtained from the register 201 of the external light source 200.

[0051] There is a correspondence between the optical engine 103 and the interface 102. When the external light source 200 is plugged into the interface 102, the presence signal of the external light source 200 can be detected through the pins on the circuit board of the external light source 200 that are connected to the processor 101 of the switching device 100. Based on the correspondence between the interface receiving the presence signal and the optical engine 103, it can be determined that an external light source 200 is plugged into a specific interface 102. One interface 102 can correspond to one optical engine 103, or multiple interfaces 102 can correspond to one optical engine 103. The actual configuration can be set according to the needs of the device and is not limited in this regard. The presence signal can be high or low, depending on the actual situation. The external light source 200 can include various types, such as non-data pass-through external light sources, DR type external light sources, and FR type external light sources.

[0052] In the switching equipment, the optical engine 103 is made of silicon-based waveguides, forming the aforementioned devices. The silicon-based waveguides possess both electrical and optical transmission properties. Optical signals can be transmitted on the first modulation arm 1030 and the second modulation arm 1031. A phase shifter 1032 disposed on the first modulation arm 1030 receives the electrical signal of the data transmitted by the logic device and carries this electrical signal on the optical signal transmitted by the first modulation arm 1030, thereby achieving the purpose of transmitting data via optical signals.

[0053] After the optical signal enters the switching equipment from the optical signal input terminal of interface 102, it is transmitted to the optical engine 103 via optical cable 105 (or flexible board). The external light source 200 can be divided into an optical signal section and an electrical signal section. The electrical signal section of the external light source 200 may include a circuit board 202, a laser 203, and a register 201. The register 201 may record the type of the external light source 200. The register 201 may contain several register pages, and each register page may contain several register bits. Generally, the register 201 may contain 256 register pages (00h-FFh), and each register page may contain 256 register bits (0-255). Each register bit is 1 byte, and different information is represented by 8 bits of "0" and "1". In the external light source 200, register 201 and laser 203 are respectively mounted on circuit board 202. After the external light source 200 is connected to interface 102 of switching device 100, circuit board 202 is connected to circuit board 107 inside switching device 100 via gold fingers, thereby supplying power to laser 203 and register 201 inside external light source 200. Figure 1 The external light source 200 shown is a DR-type data pass-through external light source.

[0054] In other words, to identify the type of external light source 200, register 201 can have two pre-defined register bits: a first register bit and a second register bit. The first register bit is used to identify whether the external light source 200 is a data pass-through type or a non-data pass-through type external light source, that is, whether the external light source can transmit optical signals carrying data in addition to providing optical signals. The second register bit is used to identify whether the external light source is a DR type data pass-through type or an FR type data pass-through type external light source, that is, to identify the transmission method of the optical signal data of the external light source.

[0055] Specifically, the first register bit can be located on page 00h or page 01h of register 201. In both pages 00h and 01h, the first register bit can be any value from byte 0 to byte 255 of each register page, set according to actual needs. The second register bit can also be located on page 00h, and can be any value from byte 0 to byte 255. Preferably, the second register bit can be byte 170 on page 00h. The following description uses an external light source 200 as an example of a DR-type data pass-through external light source. When the processor 101 reads the first register bit, it first determines that the external light source 200 is a data pass-through external light source, not a non-data pass-through external light source. Secondly, when the processor 101 reads the second register bit, it can determine whether the external light source 200 is a DR-type or FR-type external light source. It should be noted that since non-data pass-through external light sources do not distinguish between DR and FR transmission categories, once it is determined that external light source 200 is a non-data pass-through external light source, the value of the second register bit no longer needs to be determined. It should also be noted that since one register bit is one byte, and one byte contains 8 bits, at least one bit is required to indicate data pass-through and non-data pass-through types, and at least one bit is required for the DR and FR type identification pages. Therefore, the first and second register bits can be located on the same byte of the same page, on different bytes of the same page, or on different bytes of different pages, depending on actual needs; there are no restrictions on this.

[0056] After the optical signal enters the optical engine 103, it is split into four paths according to the requirements. Each path enters the modulator 1036 of the optical engine 103 for modulation. The first modulation arm 1030, the second modulation arm 1031, the phase shifter 1032, the beam splitter 1033, the coupler 1034, and the first compensator 1035 mentioned above can be packaged into the modulator 1036, or they can be formed separately without being packaged together.

[0057] After the optical signal from the external light source 200 is split and enters the modulator 1036, it first enters the beam splitter 1033. The beam splitter 1033 then performs a 1:2 split on the input optical signal. During the splitting process, the beam splitter 1033 needs to be compensated by the first compensator 1035. The first compensator 1035 has different compensation values ​​depending on the type of the external light source 200. The compensation values ​​include a first compensation value and a second compensation value. Non-data pass-through external light sources and DR-type data pass-through external light sources correspond to the first compensation value, while FR-type data pass-through external light sources correspond to the second compensation value. In other words, the compensation value for non-data pass-through external light sources is consistent with the compensation value for DR-type data pass-through external light sources.

[0058] Secondly, during the transmission of the optical signal along the first modulation arm 1030, the phase shifter 1032 receives the electrical signal that transmits data output by the logic device, adds the electrical signal to the optical signal, and outputs it to the first modulation arm 1030. The optical signal transmitted on the second modulation arm 1031 has the same frequency and phase as the optical signal transmitted on the first modulation arm 1030, but no data is added to the optical signal transmitted on the second modulation arm 1031. The power ratio of the optical signals on the first modulation arm 1030 and the second modulation arm 1031 is 1:1. That is, if the power of the optical signal entering the beam splitter 1033 is 100, then the first modulation arm 1030 and the second modulation arm 1031 each split 50 of the optical signal.

[0059] When the optical signals transmitted on the first modulation arm 1030 and the second modulation arm 1031 reach the coupler 1034, they are superimposed into an optical signal with a power of 100. Subsequently, the coupler 1034 splits the light again. This time, the power ratio at the detection output terminal 1034C and the signal output terminal 1034B of the coupler 1034 is 1:99. That is, the detection output terminal 1034C outputs only a very small power optical signal for detection, while the signal output terminal 1034B outputs a larger power optical signal for data transmission.

[0060] Since optical signals are easily affected by temperature during transmission in silicon-based waveguides, in order to reduce the impact of temperature on optical signal transmission, an optical engine 103 can be optionally used, such as... Figure 3As shown, it also includes a second compensator 1037 and an MPD (Monitor Photo Detector) 1038. The input terminal 1038A of the MPD 1038 is connected to the detection output terminal 1034C of the coupler 1034. The output terminal 1038B of the MPD 1038 is connected to the input terminal 1037A of the second compensator 1037. The output terminal 1037B of the second compensator 1037 is connected to the first modulation arm 1030 and / or the second modulation arm 1031. It should be noted that the second compensator 1037 is used to compensate for the difference between the first modulation arm 1030 and the second modulation arm 1031. The second compensator 1037 can compensate for the difference between the two modulation arms by compensating for one of them. Therefore, the output terminal 1037B of the second compensator 1037 can be selectively connected to one modulation arm for compensation, or it can be connected to both modulation arms and selected for compensation, etc., without limitation. Figure 3 The dashed lines indicate that the second compensator 1037 is selectively connected to either the first modulation arm 1030 or the second modulation arm 1031.

[0061] After the optical signal is output from the detection output terminal 1037C of the coupler 1034, the MPD 1038 can detect the output optical signal, determine the optical signal parameters such as the extinction ratio and amplitude, and compensate by outputting a compensation value to the second compensator 1037. This compensation value can be used to adjust the refractive index of the first modulation arm 1030 and the second modulation arm 1031 to change the optical path length of the optical signal, thereby adjusting for temperature drift.

[0062] In the switching equipment 100, if it is determined that the temperature drift will not affect the transmission of optical signals within a certain range, the second compensator 1037 and MPD 1038 may not be set. They can be set according to actual needs, and there are no restrictions on this.

[0063] Furthermore, because the DR4 type data direct-through external light source 200A and the FR4 type data direct-through external light source 200B process the optical signal for transmitted data differently, such as... Figure 4As shown, in the DR4 type data direct-through external light source 200A, the optical signal transmitting data is directly connected from the input side to the output side. In the FR4 type data direct-through external light source 200B, the optical signal transmitting data, after entering from the input side, needs to be multiplexed and demultiplexed by a multiplexer / demultiplexer (MUX / DEMUX) 204 before being connected to the output side for output. In the FR4 type data direct-through external light source, since it includes the transmission of four wavelengths, on one input layer of the MUX / DEMUX 204, an optical fiber needs to be obtained from each wavelength band for multiplexing. The process of rearranging the optical fibers to meet the input requirements of the MUX / DEMUX 204 can be called rearrangement. If this rearrangement process is implemented in the external light source 200, it will require a large amount of space.

[0064] In the case of flexibly applying DR4 and FR4 types (including non-data pass-through external light sources, DR4 data pass-through external light sources and FR4 data pass-through external light sources), in order to simplify the internal structure of the external light source 200, the rearrangement process can be implemented inside the switching equipment 200, for example, in the optical engine 103 or on the optical cable 105 (or the flexible board that performs the corresponding function).

[0065] like Figure 5 , 6 As shown, the optical engine 103 can be divided into two groups according to different wavelengths of FR4 type. Each group contains four optical fibers, and each optical fiber corresponds to a wavelength, such as 1271, 1291, 1311, and 1331. Each optical fiber is split at a 1:4 ratio and enters four modulators 1036. After passing through the modulators 1036, an optical signal for data transmission is formed. An optical path rearrangement mechanism 108 for rearranging is provided on the optical cable 105 (or flexible board) of the switching equipment 100. This optical path rearrangement mechanism 108 can be implemented by the optical cable 105 or the flexible board. The optical fiber for transmitting the optical signal can be encapsulated in the flexible board.

[0066] Interface 102 includes a light source input terminal 102A and an optical signal transmission terminal 102B. The optical signal transmission terminal 102B includes an optical signal input terminal for receiving data and an optical signal output terminal for transmitting data. Each optical signal in the light source input terminal 102A is input to a modulator group of the optical engine 103, which contains a plurality of modulators 1036. Each optical signal is split and transmitted to a modulator group for modulation.

[0067] The optical path rearrangement mechanism 108 includes several optical fiber groups 1080. The input terminal 1080A of each optical fiber group 1080 corresponds to a signal output terminal 1034B of several modulator groups. The output terminal 1080B of each optical fiber group 1080 is connected to an optical signal transmission terminal 102B included in the interface 102.

[0068] like Figure 5 , 6 As shown, on interface 102, the optical signal input terminal 102A can include 8 light source inputs, 32 optical signal inputs for receiving data, and 32 optical signal outputs for transmitting data. After the 8 light source inputs enter the optical engine 103, they are split into 32 optical signals at a 1:4 ratio, which are then loaded with the received electrical signal data by the modulator 1036. Figure 6 Taking the rightmost fiber optic group as an example, it includes fibers 1081, 1082, 1083, and 1084. Fiber 1081 corresponds to a modulator in modulator group 1036W, fiber 1082 corresponds to a modulator in modulator group 1036X, fiber 1083 corresponds to a modulator in modulator group 1036Y, and fiber 1084 corresponds to a modulator in modulator group 1036Z. This fiber optic group 1080 can then be output from one optical signal transmission end 102B of interface 102.

[0069] In an FR4 type data direct-through external light source, each modulator group corresponds to a wavelength of optical signal. Therefore, one optical signal transmission terminal 102B can contain four wavelengths of optical signals for transmitting data. After transmission from interface 102 to the external light source 200, the external light source does not need to rearrange these optical signals and can directly connect to the MUX / DEMUX204 via a single optical cable, saving space in the external light source 200.

[0070] Correspondingly, this application provides a method for configuring a light engine, such as... Figure 7 As shown, the switching equipment applied to the above includes:

[0071] S400: If an external light source presence signal is detected, determine the interface corresponding to the presence signal and the light engine corresponding to the interface.

[0072] like Figure 1 The switching equipment and external light source shown.

[0073] The interfaces and optical engines have a corresponding relationship, which can be recorded in the processor of the switching device. After the processor detects the presence signal of the external light source, it determines the identifier of the interface to which the external light source is plugged in, and determines the optical engine that needs to be configured based on the correspondence between the interface identifier and the optical engine.

[0074] S401. Obtain the external light source type from the external light source register.

[0075] Because of the connection between the external light source and the switching equipment, the circuit board on the switching equipment and the circuit board in the external light source are electrically connected via gold fingers or other means. The processor can obtain the type of the external light source from the registers in the external light source. The registers contain at least two register bits: the first register bit identifies whether the external light source is a data pass-through type, and the second register bit identifies whether the external light source is a DR (Data Pass-Through) or FR (Flat-Back) type. It should be noted that if the first register bit identifies the external light source as a non-data pass-through type, then the second register bit, regardless of its value, will be considered a DR type.

[0076] The external light source types include at least non-data pass-through external light sources, DR-type data pass-through external light sources, and FR-type data pass-through external light sources. Optionally, the register includes a first register bit and a second register bit. The first register bit is used to identify whether the external light source is a data pass-through or non-data pass-through external light source, and the second register bit is used to identify whether the external light source is a DR-type or FR-type data pass-through external light source. Optionally, the first register bit is located on page 00h or page 01h. Optionally, the second register bit is byte 170 on page 00h. Specifically, the settings of the external light source type and the corresponding register bit can be customized according to requirements and are not limited to the two methods mentioned above.

[0077] S402. Set the compensation value of the compensator in the corresponding light engine according to the type of external light source.

[0078] The compensation value includes a first compensation value and a second compensation value. The first compensation value corresponds to non-data pass-through external light sources and DR-type data pass-through external light sources, while the second compensation value corresponds to FR-type data pass-through external light sources.

[0079] After the processor determines the compensation value based on the register, it can set the compensation value of the first compensator in the optical engine, thereby adjusting the parameter values ​​of the beam splitter and coupler in the optical engine so that the beam splitter and coupler can adapt to different types of external light sources to achieve data transmission.

[0080] Correspondingly, this application also provides a light engine configuration device, such as Figure 8 As shown, it includes:

[0081] The presence detection unit is used to determine the interface corresponding to the presence signal and the light engine corresponding to the interface if the presence signal of the external light source is detected.

[0082] The acquisition unit is used to acquire the type of external light source from the register of the external light source, wherein the type of external light source includes at least a non-data pass-through external light source, a data center range DR type data pass-through external light source, and a long distance FR type data pass-through external light source;

[0083] The compensation unit is used to set the compensation value of the compensator in the corresponding light engine according to the type of external light source. The compensation value includes a first compensation value and a second compensation value. The first compensation value corresponds to non-data pass-through external light sources and DR type data pass-through external light sources, and the second compensation value corresponds to FR type data pass-through external light sources.

[0084] Optionally, the register includes a first register bit and a second register bit. The first register bit is used to identify whether the external light source is a data pass-through type external light source or a non-data pass-through type external light source. The second register bit is used to identify whether the external light source is a DR type data pass-through type external light source or a FR type data pass-through type external light source.

[0085] Optionally, the first register bit is located on page 00h or page 01h.

[0086] Optionally, the second register bit is the 170th byte on page 00h.

[0087] In the embodiments described in this specification, the type of external light source stored in the register of the external light source is obtained by the switching device, and the compensation value in the optical engine is set based on the type of external light source. This enables the switching device to flexibly apply non-data pass-through external light sources, DR-type data pass-through external light sources, and FR-type data pass-through external light sources, simplifying the configuration process of the optoelectronic switching device for different external light sources and improving the flexibility of the optoelectronic switching device in configuration.

[0088] It should be understood that this specification is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope.

[0089] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification shall be included within the scope of protection of this specification.

Claims

1. A method for configuring a light engine, characterized in that, include: If an external light source presence signal is detected, determine the interface corresponding to the presence signal and the light engine corresponding to the interface; The type of external light source is obtained from the register of the external light source, wherein the type of external light source includes at least a non-data pass-through external light source, a data center range DR type data pass-through external light source, and a long distance FR type data pass-through external light source; The compensation value of the compensator in the optical engine is set according to the type of external light source. The compensation value includes a first compensation value and a second compensation value. The non-data pass-through type external light source and the DR type data pass-through type external light source correspond to the first compensation value, and the FR type data pass-through type external light source corresponds to the second compensation value. After determining the compensation value according to the register, the compensation value of the first compensator in the optical engine is set, and the parameter values ​​of the beam splitter and coupler in the optical engine are adjusted so that the beam splitter and coupler can adapt to different types of external light sources to realize data transmission.

2. The method according to claim 1, characterized in that, The register includes a first register bit and a second register bit. The first register bit is used to identify whether the external light source is a data pass-through type external light source or a non-data pass-through type external light source. The second register bit is used to identify whether the external light source is a DR type or a FR type.

3. The method according to claim 2, characterized in that, The first register bit is located on page 00h or page 01h.

4. The method according to claim 2, characterized in that, The second register bit is the 170th byte on page 00h.

5. A light engine configuration device, characterized in that, include: The presence detection unit is used to determine the interface corresponding to the presence signal and the light engine corresponding to the interface if the presence signal of the external light source is detected. The acquisition unit is used to acquire the type of external light source from the register of the external light source, wherein the type of external light source includes at least a non-data pass-through external light source, a data center range DR type data pass-through external light source, and a long-distance FR type data pass-through external light source; The compensation unit is used to set the compensation value of the compensator in the optical engine according to the type of external light source. The compensation value includes a first compensation value and a second compensation value. The non-data pass-through external light source and the DR type data pass-through external light source correspond to the first compensation value, and the FR type data pass-through external light source corresponds to the second compensation value. After determining the compensation value according to the register, the compensation value of the first compensator in the optical engine is set, and the parameter values ​​of the beam splitter and coupler in the optical engine are adjusted so that the beam splitter and coupler can adapt to different types of external light sources to realize data transmission.

6. The apparatus according to claim 5, characterized in that, The register includes a first register bit and a second register bit. The first register bit is used to identify whether the external light source is a data pass-through type external light source or a non-data pass-through type external light source. The second register bit is used to identify whether the external light source is a DR type or a FR type.

7. The apparatus according to claim 6, characterized in that, The first register bit is located on page 00h or page 01h.

8. The apparatus according to claim 6, characterized in that, The second register bit is the 170th byte on page 00h.

9. A switching device, characterized in that, It includes a processor, one or more interfaces, and a light engine corresponding to the interfaces, the interfaces being connected to an external light source; The light engine includes: First modulation arm; Second modulation arm; A phase shifter, connected to the first modulation arm, carries an electrical signal for transmitting data on an optical signal transmitted by the first modulation arm; The beam splitter has its input end connected to the optical signal input end of the interface, and its output end connected to the first modulation arm and the second modulation arm respectively, for splitting the received optical signal input to the first modulation arm and the second modulation arm; A coupler, the input terminals of which are respectively connected to the first modulation arm and the second modulation arm, and the signal output terminal of which is connected to the optical signal output terminal of the interface; A first compensator has its input connected to the processor and its output connected to the beam splitter and the coupler, respectively. The processor sets the compensation value of the first compensator for the beam splitter and the coupler according to the type of the external light source obtained from the register of the external light source.

10. The switching device according to claim 9, characterized in that, The optical engine further includes a second compensator and a detection light sensor (MPD), wherein the input of the MPD is connected to the detection output of the coupler, the output of the MPD is connected to the input of the second compensator, and the output of the second compensator is connected to the first modulation arm and / or the second modulation arm.

Images